#21B9BD#21B9BD

#21B9BD is a light, moderate teal. Relative luminance 0.387; OKLCH L 71.5% C 0.116 H 197.7°. Best body text is #000000 at 8.74:1 contrast (WCAG AA passes).

Color values

HEX	#21B9BD
RGB	rgb(33, 185, 189)
HSL	hsl(182, 70%, 44%)
HSV	hsv(182, 83%, 74%)
CMYK	cmyk(82.5%, 2.1%, 0%, 25.9%)
CIE-LAB	lab(68.53, -35.02, -12.74)
CIE-LCH	lch(68.53, 37.27, 199.99°)
OKLab	oklab(71.55% -0.1108 -0.0354)
OKLCH	oklch(71.55% 0.116 197.7)
XYZ	xyz(27.1572, 38.6919, 54.1712)
Luminance	0.3870 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21B9BD #BD2521

analogous

#21BD73 #21B9BD #216BBD

triadic

#21B9BD #BD21B9 #B9BD21

tetradic

#21B9BD #7321BD #BD2521 #6BBD21

square

#21B9BD #7321BD #BD2521 #6BBD21

split-complementary

#21B9BD #BD216B #BD7321

monochromatic

#0F5355 #188689 #21B9BD #3ED9DD #72E3E6

Accessibility & contrast

On white

2.40

#21B9BD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.74

#21B9BD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #21B9BD

8.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21B9BD	#FFFFFF	#000000	##000000
##21B9BD	1.00	2.40	8.74	8.74
#FFFFFF	2.40	1.00	21.00	21.00
#000000	8.74	21.00	1.00	1.00
##000000	8.74	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#ABB0BE

Deuteranopia (green-blind)

#96A1BE

Tritanopia (blue-blind)

#00C0BA

Achromatopsia (no color)

#A7A7A7

Design tokens & code

CSS

--color: #21b9bd;
/* rgb */ color: rgb(33, 185, 189);
/* oklch */ color: oklch(71.5% 0.116 197.7);

Tailwind

colors: {
  custom: {
    50: '#7cced0',
    500: '#21b9bd',
    950: '#000000',
  },
}

SCSS

$custom: #21b9bd;
$custom-light: #7cced0;
$custom-dark: #000000;

JSON

{
  "hex": "#21b9bd",
  "rgb": {
    "r": 33,
    "g": 185,
    "b": 189
  },
  "hsl": {
    "h": 181.538,
    "s": 70.27,
    "l": 43.529
  },
  "oklch": {
    "l": 0.71548,
    "c": 0.11632,
    "h": 197.7
  },
  "luminance": 0.38695
}

Semantic roles & 50–950 ramp

primary

#21B9BD

secondary

#CD6F6D

accent

#3F3BED

background

#F8FCFC

surface

#F0F9F9

border

#CBD2D2

text

#0B1414

muted

#7C8282

Preview Lab

Preview with #21B9BD

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

Preview Lab → · Contrast checker → · Palette generator →