#81B5EA#81B5EA

#81B5EA is a light, moderate cyan. Relative luminance 0.437; OKLCH L 75.7% C 0.094 H 249.6°. Best body text is #000000 at 9.73:1 contrast (WCAG AA passes).

Color values

HEX#81B5EA
RGBrgb(129, 181, 234)
HSLhsl(210, 71%, 71%)
HSVhsv(210, 45%, 92%)
CMYKcmyk(44.9%, 22.6%, 0%, 8.2%)
CIE-LABlab(72.00, -3.28, -31.80)
CIE-LCHlch(72.00, 31.97, 264.11°)
OKLaboklab(75.69% -0.0329 -0.0885)
OKLCHoklch(75.69% 0.094 249.6)
XYZxyz(40.4234, 43.6527, 84.1217)
Luminance0.4365 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#81B5EA #EAB681
analogous
#81E9EA #81B5EA #8181EA
triadic
#81B5EA #EA81B5 #B5EA81
tetradic
#81B5EA #EA81E9 #EAB681 #81EA81
square
#81B5EA #EA81E9 #EAB681 #81EA81
split-complementary
#81B5EA #EA8181 #E9EA81
monochromatic
#2277CE #4D96E1 #81B5EA #B5D4F3 #E5F0FB

Accessibility & contrast

On white

2.16
#81B5EA on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

9.73
#81B5EA on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #81B5EA
9.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##81B5EA#FFFFFF#000000##000000
##81B5EA1.002.169.739.73
#FFFFFF2.161.0021.0021.00
#0000009.7321.001.001.00
##0000009.7321.001.001.00

Color blindness preview

Protanopia (red-blind)
#A0B6EC
Deuteranopia (green-blind)
#93ACE9
Tritanopia (blue-blind)
#56C1C7
Achromatopsia (no color)
#B0B0B0

Design tokens & code

CSS
--color: #81b5ea;
/* rgb */ color: rgb(129, 181, 234);
/* oklch */ color: oklch(75.7% 0.094 249.6);
Tailwind
colors: {
  custom: {
    50: '#aacbf1',
    500: '#81b5ea',
    950: '#000000',
  },
}
SCSS
$custom: #81b5ea;
$custom-light: #aacbf1;
$custom-dark: #000000;
JSON
{
  "hex": "#81b5ea",
  "rgb": {
    "r": 129,
    "g": 181,
    "b": 234
  },
  "hsl": {
    "h": 210.286,
    "s": 71.429,
    "l": 71.176
  },
  "oklch": {
    "l": 0.75686,
    "c": 0.09443,
    "h": 249.6
  },
  "luminance": 0.43655
}

Semantic roles & 50–950 ramp

primary
#81B5EA
secondary
#F1E4D6
accent
#7412D3
background
#FAFCFE
surface
#F4F8FD
border
#CED1D5
text
#101316
muted
#7F8284

Preview Lab

Preview with #81B5EA

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

Preview Lab → · Contrast checker → · Palette generator →

#81B5EA Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva