Photo in the color Coquelicot
Pictured: Coquelicot, the closest color we have a photo of (#FF3800)
rgb(253, 60, 6)
#FD3C06

Fire Opal #FD3C06 RGB Color Code

Name from the community color list.

Fire Opal (#FD3C06) is a vivid, medium red. In RGB it is made of 99% red, 24% green and 2% blue (R 253, G 60, B 6). The red channel is the strongest. In HSL it has a hue of 13Β°, 98% saturation and 51% lightness. Its relative luminance is 0.241, so black text is easier to read on top of it. For print, a rough CMYK match is 0% cyan, 76% magenta, 98% yellow and 1% 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.

Open in color picker
ConverterPalette generatorContrast checkerGradient builderUI previewSimilar names

Fire Opal color codes

#FD3C06 in every common color format. Click a value to copy it.

FormatValueNotesCopy
HEX #FD3C06 Valid CSS
RGB rgb(253, 60, 6) Valid CSS
HSL hsl(13, 98%, 51%) Valid CSS
HSV / HSB hsv(13, 98%, 99%) Not a CSS format
HWB hwb(13 2% 1%) Valid CSS
CMYK cmyk(0%, 76%, 98%, 1%) Approximate (no ICC profile)
OKLCH oklch(64.94% 0.2334 33.63) Valid CSS
OKLab oklab(64.94% 0.1943 0.1293) Valid CSS
CIELAB lab(57.18% 71.25 68.91) D50, as in CSS
CIELCH lch(57.18% 99.12 44.04) Valid CSS
Display P3 color(display-p3 0.9142 0.3061 0.1589) Valid CSS
XYZ (D65) color(xyz-d65 0.4216 0.2413 0.0261) Valid CSS
Decimal 16595974 Integer (0xRRGGBB)

CMYK here is a rough screen match without an ICC profile. See CMYK and print. Relative luminance: 0.2413. Nearest web-safe color: #FF3300.

Mix Fire Opal with other colors

See what #FD3C06 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.

PaintFire Opal and red paintOpen in the color mixer
LightFire Opal and green lightOpen in the color mixer
PrintFire Opal and cyan inkOpen in the color mixer
DigitalFire Opal blended with blueOpen in the color mixer

Use Fire Opal in your code

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

WhereCodeCopy
CSS variable--fire-opal: #FD3C06;
Sass variable$fire-opal: #FD3C06;
Tailwind CSS v4@theme { --color-fire-opal: #FD3C06; }
Tailwind CSS v3 configcolors: { 'fire-opal': '#FD3C06' }
SwiftUIColor(red: 0.992, green: 0.235, blue: 0.024)
UIKitUIColor(red: 0.992, green: 0.235, blue: 0.024, alpha: 1)
Android XML<color name="fire_opal">#FFFD3C06</color>
Flutter and Jetpack ComposeColor(0xFFFD3C06)

Accessibility and contrast

Black text works best on #FD3C06 (5.83:1, AA). Here is how #FD3C06 does as a text color:

Large heading text
Body text at 16px. The quick brown fox jumps over the lazy dog.
3.60:1 on white
APCA Lc 62
AA LargeTry #E13200
Large heading text
Body text at 16px. The quick brown fox jumps over the lazy dog.
5.83:1 on black
APCA Lc -40
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 Fire Opal

#FD3C06 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

#FD3C06 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 Fire Opal

The gem behind the name

Fire opal is a clear to cloudy opal with a warm body color that runs from yellow to orange to red. Unlike most precious opals, it usually shows no flashes of rainbow color. Ones without any flashes are sometimes called jelly opals.

The best known source is the state of QuerΓ©taro in central Mexico, so many are sold as Mexican fire opals. The orange red base color is the mark of every fire opal, as the Wikipedia article on opal notes.

Two codes for one gem

The #FD3C06 on this page is a hot red orange. It is the same code the 2010 xkcd color survey gives for "red orange", and its use as Fire Opal comes from an open name list. Wikipedia's alphabetical list gives Fire opal as #E95C4B, a softer coral red. That entry points to a section that is no longer in the Shades of orange article, so its source is unclear.

On screen, #FD3C06 sits near orange red and scarlet.

Fire Opal in a user interface

A sample app screen with #FD3C06 as the main color, on a light and a dark theme.

Light theme

Dark theme

Buttons and bars use #FD3C06 as it is. On the light theme, #FD3C06 is too hard to read as text (3.60:1), so links, the badge and outline text use #E13200 there (4.51:1). Build a full color scheme around it in the UI color preview.

Color harmonies for Fire Opal

These schemes turn the hue of #FD3C06 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#FD3C06#06C7FD

Analogous

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

Open palette
#FD064Cthis#FD3C06#FDB806

Triadic

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

Open palette
this#FD3C06#06FD3C#3C06FD

Split complementary

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

Open palette
this#FD3C06#06FDB8#064CFD

Tetradic (rectangle)

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

Open palette
this#FD3C06#C7FD06#06C7FD#3C06FD

Square

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

Open palette
this#FD3C06#4CFD06#06C7FD#B806FD

Monochromatic

One hue at different levels of lightness and saturation.

Open palette
#651701#B72901#FD430F#FE8361#FEC4B3

Gradients with Fire Opal

Four CSS gradients made from #FD3C06. 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, #FFDFD6, #FD3C06);

Edit in the gradient generator

Deep shade

The color fading into a dark shade.

background: linear-gradient(180deg, #FD3C06, #470A00);

Edit in the gradient generator

Analogous

Its two neighbors on the color wheel.

background: linear-gradient(135deg, #FD064C, #FD3C06, #FDB806);

Edit in the gradient generator

Triadic

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

background: linear-gradient(135deg, #FD3C06, #CCAF24, #06FD3C);

Edit in the gradient generator

Shades, tints and tones of Fire Opal

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)

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

  1. 50
    FFF4F1
  2. 100
    FFE7E1
  3. 200
    FFCEC2
  4. 300
    FFA792
  5. 400
    FF7152
  6. 500
    FD3C06
  7. 600
    C22A00
  8. 700
    9B1F00
  9. 800
    7B1700
  10. 900
    5C0E00
  11. 950
    3B0600

Closest RAL, Tailwind and CSS colors

The nearest match to #FD3C06 in three color systems that designers and builders use.

RAL ClassicRAL 2017 RAL orange#FA4402, nearly the same (Ξ”E 1.1)Tailwind CSSred-500 #EF4444, very close (Ξ”E 4.3)CSS color namesorangered #FF4500, nearly the same (Ξ”E 1.4)

Ξ”E 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 (Ξ”E in OKLab). Browse all shades of red or search the color library.