#51E5CF#51E5CF

#51E5CF is a very light, vivid teal. Relative luminance 0.623; OKLCH L 83.8% C 0.129 H 181.3°. Best body text is #000000 at 13.46:1 contrast (WCAG AA passes).

Color values

HEX#51E5CF
RGBrgb(81, 229, 207)
HSLhsl(171, 74%, 61%)
HSVhsv(171, 65%, 90%)
CMYKcmyk(64.6%, 0%, 9.6%, 10.2%)
CIE-LABlab(83.07, -44.16, -0.81)
CIE-LCHlch(83.07, 44.17, 181.05°)
OKLaboklab(83.79% -0.1285 -0.0029)
OKLCHoklch(83.79% 0.129 181.3)
XYZxyz(42.6698, 62.2882, 68.7934)
Luminance0.6229 (WCAG relative)
Temperaturecool
Familyteal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#51E5CF #E55167
analogous
#51E585 #51E5CF #51B1E5
triadic
#51E5CF #CF51E5 #E5CF51
tetradic
#51E5CF #8551E5 #E55167 #B1E551
square
#51E5CF #8551E5 #E55167 #B1E551
split-complementary
#51E5CF #E551B1 #E58551
monochromatic
#18A38F #20D8BD #51E5CF #86EDDE #BBF5EC

Accessibility & contrast

On white

1.56
#51E5CF on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

13.46
#51E5CF on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51E5CF
13.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##51E5CF#FFFFFF#000000##000000
##51E5CF1.001.5613.4613.46
#FFFFFF1.561.0021.0021.00
#00000013.4621.001.001.00
##00000013.4621.001.001.00

Color blindness preview

Protanopia (red-blind)
#DBD8CE
Deuteranopia (green-blind)
#C6C8D1
Tritanopia (blue-blind)
#00E9DE
Achromatopsia (no color)
#CFCFCF

Design tokens & code

CSS
--color: #51e5cf;
/* rgb */ color: rgb(81, 229, 207);
/* oklch */ color: oklch(83.8% 0.129 181.3);
Tailwind
colors: {
  custom: {
    50: '#93eedd',
    500: '#51e5cf',
    950: '#000000',
  },
}
SCSS
$custom: #51e5cf;
$custom-light: #93eedd;
$custom-dark: #000000;
JSON
{
  "hex": "#51e5cf",
  "rgb": {
    "r": 81,
    "g": 229,
    "b": 207
  },
  "hsl": {
    "h": 171.081,
    "s": 74,
    "l": 60.784
  },
  "oklch": {
    "l": 0.83794,
    "c": 0.12858,
    "h": 181.3
  },
  "luminance": 0.62293
}

Semantic roles & 50–950 ramp

primary
#51E5CF
secondary
#A63545
accent
#0F2DD6
background
#FCFFFE
surface
#F5FEFC
border
#CFD6D5
text
#0E1615
muted
#7F8584

Preview Lab

Preview with #51E5CF

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

Preview Lab → · Contrast checker → · Palette generator →

#51E5CF Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva