#51B8BF#51B8BF

#51B8BF is a light, moderate teal. Relative luminance 0.398; OKLCH L 72.5% C 0.095 H 201.4°. Best body text is #000000 at 8.96:1 contrast (WCAG AA passes).

Color values

HEX#51B8BF
RGBrgb(81, 184, 191)
HSLhsl(184, 46%, 53%)
HSVhsv(184, 58%, 75%)
CMYKcmyk(57.6%, 3.7%, 0%, 25.1%)
CIE-LABlab(69.32, -27.57, -12.55)
CIE-LCHlch(69.32, 30.29, 204.47°)
OKLaboklab(72.5% -0.0886 -0.0347)
OKLCHoklch(72.5% 0.095 201.4)
XYZxyz(29.9339, 39.7889, 55.3826)
Luminance0.3979 (WCAG relative)
Temperaturecool
Familyteal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#51B8BF #BF5851
analogous
#51BF8F #51B8BF #5181BF
triadic
#51B8BF #BF51B8 #B8BF51
tetradic
#51B8BF #8F51BF #BF5851 #81BF51
square
#51B8BF #8F51BF #BF5851 #81BF51
split-complementary
#51B8BF #BF5181 #BF8F51
monochromatic
#28696D #39949A #51B8BF #7ECACF #AADDE0

Accessibility & contrast

On white

2.34
#51B8BF on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

8.96
#51B8BF on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51B8BF
8.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##51B8BF#FFFFFF#000000##000000
##51B8BF1.002.348.968.96
#FFFFFF2.341.0021.0021.00
#0000008.9621.001.001.00
##0000008.9621.001.001.00

Color blindness preview

Protanopia (red-blind)
#ACB1C0
Deuteranopia (green-blind)
#9AA4C0
Tritanopia (blue-blind)
#00BEBA
Achromatopsia (no color)
#A9A9A9

Design tokens & code

CSS
--color: #51b8bf;
/* rgb */ color: rgb(81, 184, 191);
/* oklch */ color: oklch(72.5% 0.095 201.4);
Tailwind
colors: {
  custom: {
    50: '#8dcdd2',
    500: '#51b8bf',
    950: '#000000',
  },
}
SCSS
$custom: #51b8bf;
$custom-light: #8dcdd2;
$custom-dark: #000000;
JSON
{
  "hex": "#51b8bf",
  "rgb": {
    "r": 81,
    "g": 184,
    "b": 191
  },
  "hsl": {
    "h": 183.818,
    "s": 46.218,
    "l": 53.333
  },
  "oklch": {
    "l": 0.72503,
    "c": 0.09517,
    "h": 201.4
  },
  "luminance": 0.39792
}

Semantic roles & 50–950 ramp

primary
#51B8BF
secondary
#CEA19E
accent
#5A52D6
background
#F9FCFC
surface
#F1F9F9
border
#CBD2D2
text
#0D1314
muted
#7E8282

Preview Lab

Preview with #51B8BF

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

Preview Lab → · Contrast checker → · Palette generator →

#51B8BF Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva