#21B391#21B391

#21B391 is a light, vivid teal. Relative luminance 0.346; OKLCH L 68.6% C 0.127 H 171.9°. Best body text is #000000 at 7.92:1 contrast (WCAG AA passes).

Color values

HEX	#21B391
RGB	rgb(33, 179, 145)
HSL	hsl(166, 69%, 42%)
HSV	hsv(166, 82%, 70%)
CMYK	cmyk(81.6%, 0%, 19%, 29.8%)
CIE-LAB	lab(65.44, -44.71, 7.01)
CIE-LCH	lch(65.44, 45.26, 171.09°)
OKLab	oklab(68.62% -0.1253 0.0178)
OKLCH	oklch(68.62% 0.127 171.9)
XYZ	xyz(21.8554, 34.6051, 32.3102)
Luminance	0.3461 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21B391 #B32143

analogous

#21B348 #21B391 #218CB3

triadic

#21B391 #9121B3 #B39121

tetradic

#21B391 #4821B3 #B32143 #8CB321

square

#21B391 #4821B3 #B32143 #8CB321

split-complementary

#21B391 #B3218C #B34821

monochromatic

#0E4C3D #177F67 #21B391 #37DAB4 #6BE4C8

Accessibility & contrast

On white

2.65

#21B391 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.92

#21B391 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #21B391

7.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21B391	#FFFFFF	#000000	##000000
##21B391	1.00	2.65	7.92	7.92
#FFFFFF	2.65	1.00	21.00	21.00
#000000	7.92	21.00	1.00	1.00
##000000	7.92	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#ADA78F

Deuteranopia (green-blind)

#9B9993

Tritanopia (blue-blind)

#00B5A9

Achromatopsia (no color)

#9F9F9F

Design tokens & code

CSS

--color: #21b391;
/* rgb */ color: rgb(33, 179, 145);
/* oklch */ color: oklch(68.6% 0.127 171.9);

Tailwind

colors: {
  custom: {
    50: '#77cab1',
    500: '#21b391',
    950: '#000000',
  },
}

SCSS

$custom: #21b391;
$custom-light: #77cab1;
$custom-dark: #000000;

JSON

{
  "hex": "#21b391",
  "rgb": {
    "r": 33,
    "g": 179,
    "b": 145
  },
  "hsl": {
    "h": 166.027,
    "s": 68.868,
    "l": 41.569
  },
  "oklch": {
    "l": 0.68619,
    "c": 0.12656,
    "h": 171.9
  },
  "luminance": 0.34608
}

Semantic roles & 50–950 ramp

primary

#21B391

secondary

#CA667D

accent

#3C65EC

background

#F8FCFA

surface

#EFF8F5

border

#CAD1CF

text

#0A1310

muted

#7C827F

Preview Lab

Preview with #21B391

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

Preview Lab → · Contrast checker → · Palette generator →