#51BFB8#51BFB8

#51BFB8 is a light, moderate teal. Relative luminance 0.425; OKLCH L 73.9% C 0.101 H 189.5°. Best body text is #000000 at 9.49:1 contrast (WCAG AA passes).

Color values

HEX#51BFB8
RGBrgb(81, 191, 184)
HSLhsl(176, 46%, 53%)
HSVhsv(176, 58%, 75%)
CMYKcmyk(57.6%, 0%, 3.7%, 25.1%)
CIE-LABlab(71.19, -32.87, -5.92)
CIE-LCHlch(71.19, 33.40, 190.20°)
OKLaboklab(73.95% -0.0992 -0.0165)
OKLCHoklch(73.95% 0.101 189.5)
XYZxyz(30.6721, 42.4685, 51.9189)
Luminance0.4247 (WCAG relative)
Temperaturecool
Familyteal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#51BFB8 #BF5158
analogous
#51BF81 #51BFB8 #518FBF
triadic
#51BFB8 #B851BF #BFB851
tetradic
#51BFB8 #8151BF #BF5158 #8FBF51
square
#51BFB8 #8151BF #BF5158 #8FBF51
split-complementary
#51BFB8 #BF518F #BF8151
monochromatic
#286D69 #399A94 #51BFB8 #7ECFCA #AAE0DD

Accessibility & contrast

On white

2.21
#51BFB8 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

9.49
#51BFB8 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51BFB8
9.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##51BFB8#FFFFFF#000000##000000
##51BFB81.002.219.499.49
#FFFFFF2.211.0021.0021.00
#0000009.4921.001.001.00
##0000009.4921.001.001.00

Color blindness preview

Protanopia (red-blind)
#B5B6B8
Deuteranopia (green-blind)
#A4A9B9
Tritanopia (blue-blind)
#00C4BD
Achromatopsia (no color)
#AEAEAE

Design tokens & code

CSS
--color: #51bfb8;
/* rgb */ color: rgb(81, 191, 184);
/* oklch */ color: oklch(73.9% 0.101 189.5);
Tailwind
colors: {
  custom: {
    50: '#8dd2cd',
    500: '#51bfb8',
    950: '#000000',
  },
}
SCSS
$custom: #51bfb8;
$custom-light: #8dd2cd;
$custom-dark: #000000;
JSON
{
  "hex": "#51bfb8",
  "rgb": {
    "r": 81,
    "g": 191,
    "b": 184
  },
  "hsl": {
    "h": 176.182,
    "s": 46.218,
    "l": 53.333
  },
  "oklch": {
    "l": 0.73947,
    "c": 0.10056,
    "h": 189.5
  },
  "luminance": 0.42472
}

Semantic roles & 50–950 ramp

primary
#51BFB8
secondary
#CE9EA1
accent
#525AD6
background
#F9FCFC
surface
#F1F9F9
border
#CBD2D2
text
#0D1413
muted
#7E8282

Preview Lab

Preview with #51BFB8

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

Preview Lab → · Contrast checker → · Palette generator →

#51BFB8 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva