#51CAEE#51CAEE

#51CAEE is a light, moderate cyan. Relative luminance 0.502; OKLCH L 78.5% C 0.118 H 221.1°. Best body text is #000000 at 11.03:1 contrast (WCAG AA passes).

Color values

HEX#51CAEE
RGBrgb(81, 202, 238)
HSLhsl(194, 82%, 63%)
HSVhsv(194, 66%, 93%)
CMYKcmyk(66%, 15.1%, 0%, 6.7%)
CIE-LABlab(76.17, -22.76, -27.70)
CIE-LCHlch(76.17, 35.86, 230.59°)
OKLaboklab(78.53% -0.0887 -0.0773)
OKLCHoklch(78.53% 0.118 221.1)
XYZxyz(39.9402, 50.1591, 88.4491)
Luminance0.5016 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#51CAEE #EE7551
analogous
#51EEC4 #51CAEE #517BEE
triadic
#51CAEE #EE51CA #CAEE51
tetradic
#51CAEE #C451EE #EE7551 #7BEE51
square
#51CAEE #C451EE #EE7551 #7BEE51
split-complementary
#51CAEE #EE517B #EEC451
monochromatic
#118EB3 #19B9E9 #51CAEE #89DBF3 #C1ECF9

Accessibility & contrast

On white

1.90
#51CAEE on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

11.03
#51CAEE on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51CAEE
11.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##51CAEE#FFFFFF#000000##000000
##51CAEE1.001.9011.0311.03
#FFFFFF1.901.0021.0021.00
#00000011.0321.001.001.00
##00000011.0321.001.001.00

Color blindness preview

Protanopia (red-blind)
#B4C5F0
Deuteranopia (green-blind)
#9EB5EE
Tritanopia (blue-blind)
#00D6D5
Achromatopsia (no color)
#BCBCBC

Design tokens & code

CSS
--color: #51caee;
/* rgb */ color: rgb(81, 202, 238);
/* oklch */ color: oklch(78.5% 0.118 221.1);
Tailwind
colors: {
  custom: {
    50: '#93daf3',
    500: '#51caee',
    950: '#000000',
  },
}
SCSS
$custom: #51caee;
$custom-light: #93daf3;
$custom-dark: #000000;
JSON
{
  "hex": "#51caee",
  "rgb": {
    "r": 81,
    "g": 202,
    "b": 238
  },
  "hsl": {
    "h": 193.758,
    "s": 82.199,
    "l": 62.549
  },
  "oklch": {
    "l": 0.78534,
    "c": 0.11761,
    "h": 221.1
  },
  "luminance": 0.50163
}

Semantic roles & 50–950 ramp

primary
#51CAEE
secondary
#B34E30
accent
#3807DF
background
#FCFEFF
surface
#F5FBFE
border
#CFD4D6
text
#0E1417
muted
#7F8385

Preview Lab

Preview with #51CAEE

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

Preview Lab → · Contrast checker → · Palette generator →

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