#51E1EE#51E1EE

#51E1EE is a very light, vivid teal. Relative luminance 0.618; OKLCH L 83.9% C 0.122 H 203.7°. Best body text is #000000 at 13.35:1 contrast (WCAG AA passes).

Color values

HEX#51E1EE
RGBrgb(81, 225, 238)
HSLhsl(185, 82%, 63%)
HSVhsv(185, 66%, 93%)
CMYKcmyk(66%, 5.5%, 0%, 6.7%)
CIE-LABlab(82.79, -33.98, -17.64)
CIE-LCHlch(82.79, 38.29, 207.43°)
OKLaboklab(83.86% -0.1114 -0.0489)
OKLCHoklch(83.86% 0.122 203.7)
XYZxyz(45.7445, 61.7677, 90.3839)
Luminance0.6177 (WCAG relative)
Temperaturecool
Familyteal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#51E1EE #EE5E51
analogous
#51EEAC #51E1EE #5193EE
triadic
#51E1EE #EE51E1 #E1EE51
tetradic
#51E1EE #AC51EE #EE5E51 #93EE51
square
#51E1EE #AC51EE #EE5E51 #93EE51
split-complementary
#51E1EE #EE5193 #EEAC51
monochromatic
#11A6B3 #19D7E9 #51E1EE #89EBF3 #C1F4F9

Accessibility & contrast

On white

1.57
#51E1EE on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

13.35
#51E1EE on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51E1EE
13.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##51E1EE#FFFFFF#000000##000000
##51E1EE1.001.5713.3513.35
#FFFFFF1.571.0021.0021.00
#00000013.3521.001.001.00
##00000013.3521.001.001.00

Color blindness preview

Protanopia (red-blind)
#D0D8EF
Deuteranopia (green-blind)
#B9C7EF
Tritanopia (blue-blind)
#00EAE5
Achromatopsia (no color)
#CECECE

Design tokens & code

CSS
--color: #51e1ee;
/* rgb */ color: rgb(81, 225, 238);
/* oklch */ color: oklch(83.9% 0.122 203.7);
Tailwind
colors: {
  custom: {
    50: '#95ebf3',
    500: '#51e1ee',
    950: '#000000',
  },
}
SCSS
$custom: #51e1ee;
$custom-light: #95ebf3;
$custom-dark: #000000;
JSON
{
  "hex": "#51e1ee",
  "rgb": {
    "r": 81,
    "g": 225,
    "b": 238
  },
  "hsl": {
    "h": 184.968,
    "s": 82.199,
    "l": 62.549
  },
  "oklch": {
    "l": 0.83863,
    "c": 0.1217,
    "h": 203.7
  },
  "luminance": 0.61773
}

Semantic roles & 50–950 ramp

primary
#51E1EE
secondary
#B33B30
accent
#1907DF
background
#FCFEFF
surface
#F5FDFE
border
#CFD5D6
text
#0F1617
muted
#808485

Preview Lab

Preview with #51E1EE

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

Preview Lab → · Contrast checker → · Palette generator →

#51E1EE Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva