#51D9DF#51D9DF

#51D9DF is a light, moderate teal. Relative luminance 0.567; OKLCH L 81.5% C 0.116 H 199.3°. Best body text is #000000 at 12.34:1 contrast (WCAG AA passes).

Color values

HEX#51D9DF
RGBrgb(81, 217, 223)
HSLhsl(183, 69%, 60%)
HSVhsv(183, 64%, 87%)
CMYKcmyk(63.7%, 2.7%, 0%, 12.5%)
CIE-LABlab(80.01, -34.45, -13.84)
CIE-LCHlch(80.01, 37.13, 201.89°)
OKLaboklab(81.46% -0.1096 -0.0384)
OKLCHoklch(81.46% 0.116 199.3)
XYZxyz(41.5197, 56.6982, 78.5534)
Luminance0.5670 (WCAG relative)
Temperaturecool
Familyteal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#51D9DF #DF5751
analogous
#51DF9E #51D9DF #5192DF
triadic
#51D9DF #DF51D9 #D9DF51
tetradic
#51D9DF #9E51DF #DF5751 #92DF51
square
#51D9DF #9E51DF #DF5751 #92DF51
split-complementary
#51D9DF #DF5192 #DF9E51
monochromatic
#1C9499 #26C6CD #51D9DF #85E4E9 #B8F0F2

Accessibility & contrast

On white

1.70
#51D9DF on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

12.34
#51D9DF on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51D9DF
12.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##51D9DF#FFFFFF#000000##000000
##51D9DF1.001.7012.3412.34
#FFFFFF1.701.0021.0021.00
#00000012.3421.001.001.00
##00000012.3421.001.001.00

Color blindness preview

Protanopia (red-blind)
#CAD0E0
Deuteranopia (green-blind)
#B4C0E0
Tritanopia (blue-blind)
#00E0DA
Achromatopsia (no color)
#C6C6C6

Design tokens & code

CSS
--color: #51d9df;
/* rgb */ color: rgb(81, 217, 223);
/* oklch */ color: oklch(81.5% 0.116 199.3);
Tailwind
colors: {
  custom: {
    50: '#92e5e9',
    500: '#51d9df',
    950: '#000000',
  },
}
SCSS
$custom: #51d9df;
$custom-light: #92e5e9;
$custom-dark: #000000;
JSON
{
  "hex": "#51d9df",
  "rgb": {
    "r": 81,
    "g": 217,
    "b": 223
  },
  "hsl": {
    "h": 182.535,
    "s": 68.932,
    "l": 59.608
  },
  "oklch": {
    "l": 0.81463,
    "c": 0.11614,
    "h": 199.3
  },
  "luminance": 0.56703
}

Semantic roles & 50–950 ramp

primary
#51D9DF
secondary
#9D3B37
accent
#433CEC
background
#FCFEFE
surface
#F5FCFC
border
#CFD5D5
text
#0E1616
muted
#7F8484

Preview Lab

Preview with #51D9DF

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

Preview Lab → · Contrast checker → · Palette generator →

#51D9DF Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva