#51CAE8#51CAE8

#51CAE8 is a light, moderate cyan. Relative luminance 0.498; OKLCH L 78.3% C 0.114 H 217.2°. Best body text is #000000 at 10.96:1 contrast (WCAG AA passes).

Color values

HEX#51CAE8
RGBrgb(81, 202, 232)
HSLhsl(192, 77%, 61%)
HSVhsv(192, 65%, 91%)
CMYKcmyk(65.1%, 12.9%, 0%, 9%)
CIE-LABlab(75.95, -24.57, -24.80)
CIE-LCHlch(75.95, 34.92, 225.27°)
OKLaboklab(78.29% -0.0909 -0.069)
OKLCHoklch(78.29% 0.114 217.2)
XYZxyz(39.0734, 49.8123, 83.8838)
Luminance0.4982 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#51CAE8 #E86F51
analogous
#51E8BB #51CAE8 #517FE8
triadic
#51CAE8 #E851CA #CAE851
tetradic
#51CAE8 #BB51E8 #E86F51 #7FE851
square
#51CAE8 #BB51E8 #E86F51 #7FE851
split-complementary
#51CAE8 #E8517F #E8BB51
monochromatic
#168BA8 #1DB8DE #51CAE8 #87DAEF #BDEBF6

Accessibility & contrast

On white

1.92
#51CAE8 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

10.96
#51CAE8 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51CAE8
10.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##51CAE8#FFFFFF#000000##000000
##51CAE81.001.9210.9610.96
#FFFFFF1.921.0021.0021.00
#00000010.9621.001.001.00
##00000010.9621.001.001.00

Color blindness preview

Protanopia (red-blind)
#B6C4EA
Deuteranopia (green-blind)
#A1B4E8
Tritanopia (blue-blind)
#00D5D3
Achromatopsia (no color)
#BBBBBB

Design tokens & code

CSS
--color: #51cae8;
/* rgb */ color: rgb(81, 202, 232);
/* oklch */ color: oklch(78.3% 0.114 217.2);
Tailwind
colors: {
  custom: {
    50: '#92daef',
    500: '#51cae8',
    950: '#000000',
  },
}
SCSS
$custom: #51cae8;
$custom-light: #92daef;
$custom-dark: #000000;
JSON
{
  "hex": "#51cae8",
  "rgb": {
    "r": 81,
    "g": 202,
    "b": 232
  },
  "hsl": {
    "h": 191.921,
    "s": 76.65,
    "l": 61.373
  },
  "oklch": {
    "l": 0.78293,
    "c": 0.11418,
    "h": 217.2
  },
  "luminance": 0.49817
}

Semantic roles & 50–950 ramp

primary
#51CAE8
secondary
#E7B9AE
accent
#350DD9
background
#F9FDFE
surface
#F2FAFD
border
#CCD3D5
text
#0E1516
muted
#7E8384

Preview Lab

Preview with #51CAE8

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

Preview Lab → · Contrast checker → · Palette generator →

#51CAE8 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva