#51CFDB#51CFDB

#51CFDB is a light, moderate teal. Relative luminance 0.515; OKLCH L 79.0% C 0.111 H 204.0°. Best body text is #000000 at 11.30:1 contrast (WCAG AA passes).

Color values

HEX#51CFDB
RGBrgb(81, 207, 219)
HSLhsl(185, 66%, 59%)
HSVhsv(185, 63%, 86%)
CMYKcmyk(63%, 5.5%, 0%, 14.1%)
CIE-LABlab(76.97, -30.83, -16.27)
CIE-LCHlch(76.97, 34.86, 207.81°)
OKLaboklab(78.97% -0.1011 -0.0451)
OKLCHoklch(78.97% 0.111 204)
XYZxyz(38.4869, 51.4853, 74.9134)
Luminance0.5149 (WCAG relative)
Temperaturecool
Familyteal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#51CFDB #DB5D51
analogous
#51DBA2 #51CFDB #518ADB
triadic
#51CFDB #DB51CF #CFDB51
tetradic
#51CFDB #A251DB #DB5D51 #8ADB51
square
#51CFDB #A251DB #DB5D51 #8ADB51
split-complementary
#51CFDB #DB518A #DBA251
monochromatic
#1E8993 #29B8C6 #51CFDB #84DDE5 #B6EBF0

Accessibility & contrast

On white

1.86
#51CFDB on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

11.30
#51CFDB on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51CFDB
11.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##51CFDB#FFFFFF#000000##000000
##51CFDB1.001.8611.3011.30
#FFFFFF1.861.0021.0021.00
#00000011.3021.001.001.00
##00000011.3021.001.001.00

Color blindness preview

Protanopia (red-blind)
#C0C7DC
Deuteranopia (green-blind)
#ABB7DC
Tritanopia (blue-blind)
#00D7D2
Achromatopsia (no color)
#BEBEBE

Design tokens & code

CSS
--color: #51cfdb;
/* rgb */ color: rgb(81, 207, 219);
/* oklch */ color: oklch(79.0% 0.111 204.0);
Tailwind
colors: {
  custom: {
    50: '#91dee6',
    500: '#51cfdb',
    950: '#000000',
  },
}
SCSS
$custom: #51cfdb;
$custom-light: #91dee6;
$custom-dark: #000000;
JSON
{
  "hex": "#51cfdb",
  "rgb": {
    "r": 81,
    "g": 207,
    "b": 219
  },
  "hsl": {
    "h": 185.217,
    "s": 65.714,
    "l": 58.824
  },
  "oklch": {
    "l": 0.78968,
    "c": 0.11073,
    "h": 204
  },
  "luminance": 0.51489
}

Semantic roles & 50–950 ramp

primary
#51CFDB
secondary
#984138
accent
#4E3FE9
background
#FCFEFE
surface
#F5FCFC
border
#CFD5D5
text
#0E1515
muted
#7F8484

Preview Lab

Preview with #51CFDB

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

Preview Lab → · Contrast checker → · Palette generator →

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