#21B0AB#21B0AB

#21B0AB is a light, moderate teal. Relative luminance 0.343; OKLCH L 68.7% C 0.112 H 191.1°. Best body text is #000000 at 7.86:1 contrast (WCAG AA passes).

Color values

HEX#21B0AB
RGBrgb(33, 176, 171)
HSLhsl(178, 68%, 41%)
HSVhsv(178, 81%, 69%)
CMYKcmyk(81.3%, 0%, 2.8%, 31%)
CIE-LABlab(65.21, -36.22, -7.74)
CIE-LCHlch(65.21, 37.04, 192.06°)
OKLaboklab(68.66% -0.1102 -0.0216)
OKLCHoklch(68.66% 0.112 191.1)
XYZxyz(23.4997, 34.3113, 43.9044)
Luminance0.3431 (WCAG relative)
Temperaturecool
Familyteal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#21B0AB #B02126
analogous
#21B063 #21B0AB #216DB0
triadic
#21B0AB #AB21B0 #B0AB21
tetradic
#21B0AB #6321B0 #B02126 #6DB021
square
#21B0AB #6321B0 #B02126 #6DB021
split-complementary
#21B0AB #B0216D #B06321
monochromatic
#0E4947 #177C79 #21B0AB #35D9D3 #69E3DF

Accessibility & contrast

On white

2.67
#21B0AB on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

7.86
#21B0AB on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #21B0AB
7.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##21B0AB#FFFFFF#000000##000000
##21B0AB1.002.677.867.86
#FFFFFF2.671.0021.0021.00
#0000007.8621.001.001.00
##0000007.8621.001.001.00

Color blindness preview

Protanopia (red-blind)
#A5A6AB
Deuteranopia (green-blind)
#9298AC
Tritanopia (blue-blind)
#00B5AE
Achromatopsia (no color)
#9E9E9E

Design tokens & code

CSS
--color: #21b0ab;
/* rgb */ color: rgb(33, 176, 171);
/* oklch */ color: oklch(68.7% 0.112 191.1);
Tailwind
colors: {
  custom: {
    50: '#79c8c3',
    500: '#21b0ab',
    950: '#000000',
  },
}
SCSS
$custom: #21b0ab;
$custom-light: #79c8c3;
$custom-dark: #000000;
JSON
{
  "hex": "#21b0ab",
  "rgb": {
    "r": 33,
    "g": 176,
    "b": 171
  },
  "hsl": {
    "h": 177.902,
    "s": 68.421,
    "l": 40.98
  },
  "oklch": {
    "l": 0.68664,
    "c": 0.11227,
    "h": 191.1
  },
  "luminance": 0.34314
}

Semantic roles & 50–950 ramp

primary
#21B0AB
secondary
#C86468
accent
#3D43EB
background
#F8FCFC
surface
#EFF8F8
border
#CAD1D1
text
#0B1312
muted
#7C8281

Preview Lab

Preview with #21B0AB

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

Preview Lab → · Contrast checker → · Palette generator →

#21B0AB Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva