#21B9BE#21B9BE

#21B9BE is a light, moderate teal. Relative luminance 0.387; OKLCH L 71.6% C 0.116 H 198.5°. Best body text is #000000 at 8.75:1 contrast (WCAG AA passes).

Color values

HEX	#21B9BE
RGB	rgb(33, 185, 190)
HSL	hsl(182, 70%, 44%)
HSV	hsv(182, 83%, 75%)
CMYK	cmyk(82.6%, 2.6%, 0%, 25.5%)
CIE-LAB	lab(68.56, -34.72, -13.24)
CIE-LCH	lch(68.56, 37.16, 200.88°)
OKLab	oklab(71.58% -0.1103 -0.0368)
OKLCH	oklch(71.58% 0.116 198.5)
XYZ	xyz(27.2661, 38.7355, 54.7448)
Luminance	0.3874 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21B9BE #BE2621

analogous

#21BE74 #21B9BE #216ABE

triadic

#21B9BE #BE21B9 #B9BE21

tetradic

#21B9BE #7421BE #BE2621 #6ABE21

square

#21B9BE #7421BE #BE2621 #6ABE21

split-complementary

#21B9BE #BE216A #BE7421

monochromatic

#0F5356 #18868A #21B9BE #3FD9DE #73E3E7

Accessibility & contrast

On white

2.40

#21B9BE on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.75

#21B9BE on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #21B9BE

8.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21B9BE	#FFFFFF	#000000	##000000
##21B9BE	1.00	2.40	8.75	8.75
#FFFFFF	2.40	1.00	21.00	21.00
#000000	8.75	21.00	1.00	1.00
##000000	8.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#ABB0BF

Deuteranopia (green-blind)

#96A1BF

Tritanopia (blue-blind)

#00C0BA

Achromatopsia (no color)

#A7A7A7

Design tokens & code

CSS

--color: #21b9be;
/* rgb */ color: rgb(33, 185, 190);
/* oklch */ color: oklch(71.6% 0.116 198.5);

Tailwind

colors: {
  custom: {
    50: '#7cced1',
    500: '#21b9be',
    950: '#000000',
  },
}

SCSS

$custom: #21b9be;
$custom-light: #7cced1;
$custom-dark: #000000;

JSON

{
  "hex": "#21b9be",
  "rgb": {
    "r": 33,
    "g": 185,
    "b": 190
  },
  "hsl": {
    "h": 181.911,
    "s": 70.404,
    "l": 43.725
  },
  "oklch": {
    "l": 0.71584,
    "c": 0.11633,
    "h": 198.5
  },
  "luminance": 0.38739
}

Semantic roles & 50–950 ramp

primary

#21B9BE

secondary

#CD706D

accent

#403BED

background

#F8FCFC

surface

#F0F9F9

border

#CBD2D2

text

#0B1414

muted

#7C8282

Preview Lab

Preview with #21B9BE

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

Preview Lab → · Contrast checker → · Palette generator →