Photo in the color Chestnut
Pictured: Chestnut, the closest color we have a photo of (#CD5C5C)
rgb(203, 109, 81)
#CB6D51

Copper Red #CB6D51 RGB Color Code

Copper Red (#CB6D51) is a moderately saturated, medium red. In RGB it is made of 80% red, 43% green and 32% blue (R 203, G 109, B 81). The red channel is the strongest. In HSL it has a hue of 14°, 54% saturation and 56% lightness. Its relative luminance is 0.242, so black text is easier to read on top of it. For print, a rough CMYK match is 0% cyan, 46% magenta, 60% yellow and 20% black. Check it against your printer's ICC profile before you print. It is a warm color. It goes well with cool blues and greens for contrast. For a matching look, use nearby warm tones.

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Copper Red color codes

#CB6D51 in every common color format. Click a value to copy it.

FormatValueNotesCopy
HEX #CB6D51 Valid CSS
RGB rgb(203, 109, 81) Valid CSS
HSL hsl(14, 54%, 56%) Valid CSS
HSV / HSB hsv(14, 60%, 80%) Not a CSS format
HWB hwb(14 32% 20%) Valid CSS
CMYK cmyk(0%, 46%, 60%, 20%) Approximate (no ICC profile)
OKLCH oklch(63.65% 0.1262 37.4) Valid CSS
OKLab oklab(63.65% 0.1002 0.0766) Valid CSS
CIELAB lab(56.83% 36.2 32.96) D50, as in CSS
CIELCH lch(56.83% 48.95 42.32) Valid CSS
Display P3 color(display-p3 0.7473 0.4463 0.3427) Valid CSS
XYZ (D65) color(xyz-d65 0.3158 0.2423 0.108) Valid CSS
Decimal 13331793 Integer (0xRRGGBB)

CMYK here is a rough screen match without an ICC profile. See CMYK and print. Relative luminance: 0.2423. Nearest web-safe color: #CC6666.

Mix Copper Red with other colors

See what #CB6D51 makes with red paint, under a green light, printed with cyan ink and in a digital blend with blue. Click a picture to change the colors and amounts in the color mixer.

PaintCopper Red and red paintOpen in the color mixer
LightCopper Red and green lightOpen in the color mixer
PrintCopper Red and cyan inkOpen in the color mixer
DigitalCopper Red blended with blueOpen in the color mixer

Use Copper Red in your code

Ready to paste into CSS, Sass, Tailwind, iOS, Android and Flutter. Click the icon to copy a line.

WhereCodeCopy
CSS variable--copper-red: #CB6D51;
Sass variable$copper-red: #CB6D51;
Tailwind CSS v4@theme { --color-copper-red: #CB6D51; }
Tailwind CSS v3 configcolors: { 'copper-red': '#CB6D51' }
SwiftUIColor(red: 0.796, green: 0.427, blue: 0.318)
UIKitUIColor(red: 0.796, green: 0.427, blue: 0.318, alpha: 1)
Android XML<color name="copper_red">#FFCB6D51</color>
Flutter and Jetpack ComposeColor(0xFFCB6D51)

Accessibility and contrast

Black text works best on #CB6D51 (5.85:1, AA). Here is how #CB6D51 does as a text color:

Large heading text
Body text at 16px. The quick brown fox jumps over the lazy dog.
3.59:1 on white
APCA Lc 63
AA LargeTry #B85C41
Large heading text
Body text at 16px. The quick brown fox jumps over the lazy dog.
5.85:1 on black
APCA Lc -39
AA

Check this color against any background in the contrast checker. WCAG ratios and APCA Lc values measure different things, so one can't stand in for the other. Learn more.

How people with color blindness see Copper Red

#CB6D51 next to its complement and its two triadic colors, as seen with each type of color blindness.

  • Normal visionhow most people see it
  • Protanopiano red cones, about 1% of men
  • Deuteranopiano green cones, the most common type
  • Tritanopiano blue cones, very rare
  • Achromatopsiano color at all, very rare

#CB6D51 stays easy to tell apart from its complement and triadic colors for the common types of color blindness. Try your own colors in the color blindness simulator.

About the color Copper Red

An old name for a metal shade

Copper red is the reddish orange of new copper. According to Maerz and Paul's A Dictionary of Color of 1930, it was first used as a color name in English in 1590. That is even a few years before plain copper, which they date to 1594.

From a color dictionary

The code #CB6D51 comes from the ISCC-NBS dictionary of color names, a list made by American color scientists. It files copper red under "moderate reddish orange". The code is listed in the Wikipedia article on copper. Next to it, burnt sienna is lighter and chestnut is darker.

Copper red on porcelain

Potters use the same words for a whole group of glazes. These glazes get their red from copper oxide, fired in a kiln with very little oxygen. In China, the red glaze of the Xuande Emperor (1426 to 1435) was lost for a long time. Potters at Jingdezhen brought a red like it back in the early 1700s as sang de boeuf, or oxblood. Those glazes are a much deeper red than #CB6D51.

Copper Red in a user interface

A sample app screen with #CB6D51 as the main color, on a light and a dark theme.

Light theme

Dark theme

Buttons and bars use #CB6D51 as it is. On the light theme, #CB6D51 is too hard to read as text (3.59:1), so links, the badge and outline text use #B85C41 there (4.52:1). Build a full color scheme around it in the UI color preview.

Color harmonies for Copper Red

These schemes turn the hue of #CB6D51 around the color wheel. Each swatch links to its own page.

Complementary

Two colors on opposite sides of the wheel. This gives the most contrast.

Open palette
this#CB6D51#51AFCB

Analogous

Hues that sit next to each other and look good together.

Open palette
#CB5172this#CB6D51#CBAA51

Triadic

Three hues spaced evenly around the wheel. Bold, but still balanced.

Open palette
this#CB6D51#51CB6D#6D51CB

Split complementary

A base color plus the two hues on each side of its opposite. Strong contrast that clashes less.

Open palette
this#CB6D51#51CBAA#5172CB

Tetradic (rectangle)

Two pairs of opposite colors. Let one color lead and use the others less.

Open palette
this#CB6D51#AFCB51#51AFCB#6D51CB

Square

Four hues 90° apart, spread evenly around the wheel.

Open palette
this#CB6D51#72CB51#51AFCB#AA51CB

Monochromatic

One hue at different levels of lightness and saturation.

Open palette
#4F2417#8E412B#C76344#DA9884#EDCEC4

Gradients with Copper Red

Four CSS gradients made from #CB6D51. Copy the code, or open one in the gradient generator to change it.

Soft tint

From a pale tint to the full color.

background: linear-gradient(90deg, #F7E2DB, #CB6D51);

Edit in the gradient generator

Deep shade

The color fading into a dark shade.

background: linear-gradient(180deg, #CB6D51, #371910);

Edit in the gradient generator

Analogous

Its two neighbors on the color wheel.

background: linear-gradient(135deg, #CB5172, #CB6D51, #CBAA51);

Edit in the gradient generator

Triadic

A bold blend with a triadic color, through a clean middle.

background: linear-gradient(135deg, #CB6D51, #A4A05F, #51CB6D);

Edit in the gradient generator

Shades, tints and tones of Copper Red

Shades are darker, tints are lighter and tones are grayer. We make them in OKLCH so the steps look even. Hover a step to see its code, or click it to open it.

Design system scale (50 to 950)

Copper Red sits at step 500. Export the full scale as CSS variables or Tailwind tokens from the picker.

  1. 50
    FFF4F1
  2. 100
    FFE7E0
  3. 200
    FFCEBF
  4. 300
    FBA991
  5. 400
    E3876C
  6. 500
    CB6D51
  7. 600
    A74E33
  8. 700
    893921
  9. 800
    6D2B16
  10. 900
    511F10
  11. 950
    2F140C

Closest RAL, Tailwind and CSS colors

The nearest match to #CB6D51 in three color systems that designers and builders use.

RAL ClassicRAL 3022 Salmon pink#D56D56, nearly the same (ΔE 1.9)Tailwind CSSamber-600 #D97706, close (ΔE 6.7)CSS color nameschocolate #D2691E, very close (ΔE 4.3)

ΔE is the distance in OKLab: under 2 is hard to see, over 10 is a clearly different color. Browse all RAL colors, the Tailwind palette or the 148 CSS color names. RAL values on screens are only a guide, so check a real color chart before you order paint.

The named colors that look closest to this one (ΔE in OKLab). Browse all shades of red or search the color library.