Photo in the color Air Force blue
Pictured: Air Force blue, the closest color we have a photo of (#5D8AA8)
rgb(82, 139, 139)
#528B8B

#528B8B RGB Color Code

#528B8B is a muted, medium teal. In RGB it is made of 32% red, 55% green and 55% blue (R 82, G 139, B 139). The green channel is the strongest. In HSL it has a hue of 180°, 26% saturation and 43% lightness. Its relative luminance is 0.221, so black text is easier to read on top of it. For print, a rough CMYK match is 41% cyan, 0% magenta, 0% yellow and 45% black. Check it against your printer's ICC profile before you print. It is a cool color. It goes well with warm oranges and reds for contrast. For a calm, matching look, use nearby cool tones.

Open in color picker

#528B8B color codes

#528B8B in every common color format. Click a value to copy it.

FormatValueNotesCopy
HEX #528B8B Valid CSS
RGB rgb(82, 139, 139) Valid CSS
HSL hsl(180, 26%, 43%) Valid CSS
HSV / HSB hsv(180, 41%, 55%) Not a CSS format
HWB hwb(180 32% 45%) Valid CSS
CMYK cmyk(41%, 0%, 0%, 45%) Approximate (no ICC profile)
OKLCH oklch(59.78% 0.06 195.67) Valid CSS
OKLab oklab(59.78% -0.0578 -0.0162) Valid CSS
CIELAB lab(53.98% -19.52 -6.22) D50, as in CSS
CIELCH lch(53.98% 20.49 197.67) Valid CSS
Display P3 color(display-p3 0.3738 0.5395 0.5422) Valid CSS
XYZ (D65) color(xyz-d65 0.1737 0.2212 0.2778) Valid CSS
Decimal 5409675 Integer (0xRRGGBB)

CMYK here is a rough screen match without an ICC profile. See CMYK and print. Relative luminance: 0.2212. Nearest web-safe color: #669999.

Mix #528B8B with other colors

See what #528B8B 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.

Use #528B8B in your code

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

WhereCodeCopy
CSS variable--color-528b8b: #528B8B;
Sass variable$color-528b8b: #528B8B;
Tailwind CSS v4@theme { --color-color-528b8b: #528B8B; }
Tailwind CSS v3 configcolors: { 'color-528b8b': '#528B8B' }
SwiftUIColor(red: 0.322, green: 0.545, blue: 0.545)
UIKitUIColor(red: 0.322, green: 0.545, blue: 0.545, alpha: 1)
Android XML<color name="color_528b8b">#FF528B8B</color>
Flutter and Jetpack ComposeColor(0xFF528B8B)

Accessibility and contrast

Black text works best on #528B8B (5.42:1, AA). Here is how #528B8B does as a text color:

Large heading text
Body text at 16px. The quick brown fox jumps over the lazy dog.
3.87:1 on white
APCA Lc 66
AA LargeTry #478080
Large heading text
Body text at 16px. The quick brown fox jumps over the lazy dog.
5.42:1 on black
APCA Lc -36
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 #528B8B

#528B8B 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

With deuteranopia, #528B8B and #8B528B look much alike. Don't use these colors alone to tell things apart, for example in a chart. Add labels, patterns or a difference in lightness. Try your own colors in the color blindness simulator.

#528B8B in a user interface

A sample app screen with #528B8B as the main color, on a light and a dark theme.

Light theme

Dark theme

Buttons and bars use #528B8B as it is. On the light theme, #528B8B is too hard to read as text (3.87:1), so links, the badge and outline text use #478080 there (4.50:1). Build a full color scheme around it in the UI color preview.

Color harmonies for #528B8B

These schemes turn the hue of #528B8B 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

Analogous

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

Open palette

Triadic

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

Open palette

Split complementary

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

Open palette

Tetradic (rectangle)

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

Open palette

Square

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

Open palette

Monochromatic

One hue at different levels of lightness and saturation.

Open palette

Gradients with #528B8B

Four CSS gradients made from #528B8B. 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, #DCE7E7, #528B8B);

Edit in the gradient generator

Deep shade

The color fading into a dark shade.

background: linear-gradient(180deg, #528B8B, #112323);

Edit in the gradient generator

Analogous

Its two neighbors on the color wheel.

background: linear-gradient(135deg, #528B6F, #528B8B, #526F8B);

Edit in the gradient generator

Triadic

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

background: linear-gradient(135deg, #528B8B, #76718B, #8B528B);

Edit in the gradient generator

Shades, tints and tones of #528B8B

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)

#528B8B sits at step 500. Export the full scale as CSS variables or Tailwind tokens from the picker.

  1. 50
    E8FCFB
  2. 100
    D9F3F3
  3. 200
    BFE3E3
  4. 300
    9CCBCB
  5. 400
    78AFAE
  6. 500
    528B8B
  7. 600
    3F7777
  8. 700
    2C5F5F
  9. 800
    1F4A4B
  10. 900
    163636
  11. 950
    102020

Closest RAL, Tailwind and CSS colors

The nearest match to #528B8B in three color systems that designers and builders use.

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 teal or search the color library.