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Sky Blue

Hex #87CEEB, rgb(135 206 235). A cyan or teal CSS named color.

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Sky Blue color codes

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HEX
RGB
HSL
HSV
HWB
CMYK
OKLCH
OKLab
Lab
LCH
CSS keyword

About Sky Blue

Sky Blue is a light moderately saturated cyan-teal with the hex code #87CEEB. In RGB it is made of 135 red, 206 green and 235 blue; in HSL its hue is 197°, with 71% saturation and 73% lightness. Its perceptual lightness (OKLCH L) is 81.5%.

It is a CSS named color, so you can write "skyblue" anywhere CSS accepts a color. Against white it has a contrast ratio of 1.74:1 and against black 12.06:1, so black text reads better on it and passes WCAG AA for normal text.

Tints, shades and tones

Sky Blue mixed step by step with white, black and middle gray (#808080).

Tints (with white)

Shades (with black)

Tones (with gray)

Sky Blue 50-950 scale

A Tailwind-style scale built in OKLCH; the original color sits on the step with the closest lightness.

Colors that go with Sky Blue

Color harmonies rotate the hue in OKLCH and keep the lightness and chroma. Each color links to its closest named color.

Complementary

Analogous

Triadic

Split complementary

Tetradic

Square

Monochromatic

Contrast and readability

WCAG 2 contrast of Sky Blue with white and black. The readable text color on Sky Blue is black.

Sky Blue textSmall text on white

On white1.74:1

  • AA fail
  • AA Large fail
  • AAA fail
  • UI 3:1 fail

APCA Lc 32

Sky Blue textSmall text on black

On black12.06:1

  • AA pass
  • AA Large pass
  • AAA pass
  • UI 3:1 pass

APCA Lc -71

Black text on Sky Blue (#000000)

Test any pair in the contrast checker.

Color blindness preview

How Sky Blue appears with each type of color vision deficiency (simulated with the Machado model).

  • Protanopia#BECBED
  • Deuteranopia#AFBFEB
  • Tritanopia#5DD7D7
  • Protanomaly#B1CBEC
  • Deuteranomaly#A8C3EB
  • Tritanomaly#79D2E2
  • Achromatopsia#C4C4C4

Colors similar to Sky Blue

The closest named colors by perceptual difference (OKLab).

Use Sky Blue in CSS and Tailwind

CSS
.sky-blue {
  color: skyblue; /* #87CEEB */
  background-color: rgb(135 206 235);
  border-color: oklch(81.5% 0.082 225.8);
}
Tailwind CSS
/* Tailwind CSS v4: bg-sky-blue-500, text-sky-blue-700... */
@theme {
  --color-sky-blue-50: #F4FCFF;
  --color-sky-blue-100: #DEF2FA;
  --color-sky-blue-200: #BEE3F3;
  --color-sky-blue-300: #87CEEB;
  --color-sky-blue-400: #21ADD9;
  --color-sky-blue-500: #0095BE;
  --color-sky-blue-600: #007FA3;
  --color-sky-blue-700: #006683;
  --color-sky-blue-800: #00526A;
  --color-sky-blue-900: #004256;
  --color-sky-blue-950: #001923;
}

<!-- or the exact color, no config -->
<div class="bg-[#87CEEB] text-[#000000]">…</div>