#51C8D2#51C8D2

#51C8D2 is a light, moderate teal. Relative luminance 0.477; OKLCH L 77.0% C 0.106 H 202.9°. Best body text is #000000 at 10.54:1 contrast (WCAG AA passes).

Color values

HEX#51C8D2
RGBrgb(81, 200, 210)
HSLhsl(185, 59%, 57%)
HSVhsv(185, 61%, 82%)
CMYKcmyk(61.4%, 4.8%, 0%, 17.6%)
CIE-LABlab(74.64, -30.02, -14.92)
CIE-LCHlch(74.64, 33.52, 206.43°)
OKLaboklab(76.99% -0.0976 -0.0413)
OKLCHoklch(76.99% 0.106 202.9)
XYZxyz(35.6755, 47.7073, 68.2885)
Luminance0.4771 (WCAG relative)
Temperaturecool
Familyteal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#51C8D2 #D25B51
analogous
#51D29C #51C8D2 #5188D2
triadic
#51C8D2 #D251C8 #C8D251
tetradic
#51C8D2 #9C51D2 #D25B51 #88D251
square
#51C8D2 #9C51D2 #D25B51 #88D251
split-complementary
#51C8D2 #D25188 #D29C51
monochromatic
#237E86 #2FACB7 #51C8D2 #82D7DF #B2E7EB

Accessibility & contrast

On white

1.99
#51C8D2 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

10.54
#51C8D2 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51C8D2
10.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##51C8D2#FFFFFF#000000##000000
##51C8D21.001.9910.5410.54
#FFFFFF1.991.0021.0021.00
#00000010.5421.001.001.00
##00000010.5421.001.001.00

Color blindness preview

Protanopia (red-blind)
#BAC0D3
Deuteranopia (green-blind)
#A6B1D3
Tritanopia (blue-blind)
#00CFCB
Achromatopsia (no color)
#B8B8B8

Design tokens & code

CSS
--color: #51c8d2;
/* rgb */ color: rgb(81, 200, 210);
/* oklch */ color: oklch(77.0% 0.106 202.9);
Tailwind
colors: {
  custom: {
    50: '#90d9df',
    500: '#51c8d2',
    950: '#000000',
  },
}
SCSS
$custom: #51c8d2;
$custom-light: #90d9df;
$custom-dark: #000000;
JSON
{
  "hex": "#51c8d2",
  "rgb": {
    "r": 81,
    "g": 200,
    "b": 210
  },
  "hsl": {
    "h": 184.651,
    "s": 58.904,
    "l": 57.059
  },
  "oklch": {
    "l": 0.76992,
    "c": 0.10602,
    "h": 202.9
  },
  "luminance": 0.47711
}

Semantic roles & 50–950 ramp

primary
#51C8D2
secondary
#DAA9A5
accent
#5246E2
background
#F9FDFD
surface
#F2FAFB
border
#CCD3D4
text
#0E1415
muted
#7E8383

Preview Lab

Preview with #51C8D2

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

Preview Lab → · Contrast checker → · Palette generator →

#51C8D2 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva