#81B4EA#81B4EA

#81B4EA is a light, moderate cyan. Relative luminance 0.432; OKLCH L 75.5% C 0.095 H 250.6°. Best body text is #000000 at 9.65:1 contrast (WCAG AA passes).

Color values

HEX#81B4EA
RGBrgb(129, 180, 234)
HSLhsl(211, 71%, 71%)
HSVhsv(211, 45%, 92%)
CMYKcmyk(44.9%, 23.1%, 0%, 8.2%)
CIE-LABlab(71.72, -2.73, -32.22)
CIE-LCHlch(71.72, 32.34, 265.15°)
OKLaboklab(75.47% -0.0317 -0.0897)
OKLCHoklch(75.47% 0.095 250.6)
XYZxyz(40.2208, 43.2475, 84.0542)
Luminance0.4325 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#81B4EA #EAB781
analogous
#81E9EA #81B4EA #8281EA
triadic
#81B4EA #EA81B4 #B4EA81
tetradic
#81B4EA #EA81E9 #EAB781 #81EA82
square
#81B4EA #EA81E9 #EAB781 #81EA82
split-complementary
#81B4EA #EA8281 #E9EA81
monochromatic
#2276CE #4D95E1 #81B4EA #B5D3F3 #E5EFFB

Accessibility & contrast

On white

2.18
#81B4EA on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

9.65
#81B4EA on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #81B4EA
9.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##81B4EA#FFFFFF#000000##000000
##81B4EA1.002.189.659.65
#FFFFFF2.181.0021.0021.00
#0000009.6521.001.001.00
##0000009.6521.001.001.00

Color blindness preview

Protanopia (red-blind)
#9FB6EC
Deuteranopia (green-blind)
#92ABE9
Tritanopia (blue-blind)
#56C0C6
Achromatopsia (no color)
#B0B0B0

Design tokens & code

CSS
--color: #81b4ea;
/* rgb */ color: rgb(129, 180, 234);
/* oklch */ color: oklch(75.5% 0.095 250.6);
Tailwind
colors: {
  custom: {
    50: '#aacaf1',
    500: '#81b4ea',
    950: '#000000',
  },
}
SCSS
$custom: #81b4ea;
$custom-light: #aacaf1;
$custom-dark: #000000;
JSON
{
  "hex": "#81b4ea",
  "rgb": {
    "r": 129,
    "g": 180,
    "b": 234
  },
  "hsl": {
    "h": 210.857,
    "s": 71.429,
    "l": 71.176
  },
  "oklch": {
    "l": 0.75471,
    "c": 0.09515,
    "h": 250.6
  },
  "luminance": 0.4325
}

Semantic roles & 50–950 ramp

primary
#81B4EA
secondary
#F1E4D6
accent
#7612D3
background
#FAFCFE
surface
#F4F8FD
border
#CED1D5
text
#101316
muted
#7F8284

Preview Lab

Preview with #81B4EA

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →

#81B4EA Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva