#21B9BC#21B9BC

#21B9BC is a light, moderate teal. Relative luminance 0.387; OKLCH L 71.5% C 0.116 H 197.0°. Best body text is #000000 at 8.73:1 contrast (WCAG AA passes).

Color values

HEX	#21B9BC
RGB	rgb(33, 185, 188)
HSL	hsl(181, 70%, 43%)
HSV	hsv(181, 82%, 74%)
CMYK	cmyk(82.4%, 1.6%, 0%, 26.3%)
CIE-LAB	lab(68.50, -35.32, -12.24)
CIE-LCH	lch(68.50, 37.38, 199.11°)
OKLab	oklab(71.51% -0.1112 -0.034)
OKLCH	oklch(71.51% 0.116 197)
XYZ	xyz(27.0490, 38.6486, 53.6015)
Luminance	0.3865 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21B9BC #BC2421

analogous

#21BC71 #21B9BC #216BBC

triadic

#21B9BC #BC21B9 #B9BC21

tetradic

#21B9BC #7121BC #BC2421 #6BBC21

square

#21B9BC #7121BC #BC2421 #6BBC21

split-complementary

#21B9BC #BC216B #BC7121

monochromatic

#0F5354 #188688 #21B9BC #3DDADD #71E4E6

Accessibility & contrast

On white

2.41

#21B9BC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.73

#21B9BC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #21B9BC

8.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21B9BC	#FFFFFF	#000000	##000000
##21B9BC	1.00	2.41	8.73	8.73
#FFFFFF	2.41	1.00	21.00	21.00
#000000	8.73	21.00	1.00	1.00
##000000	8.73	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#ACB0BC

Deuteranopia (green-blind)

#97A1BD

Tritanopia (blue-blind)

#00C0BA

Achromatopsia (no color)

#A7A7A7

Design tokens & code

CSS

--color: #21b9bc;
/* rgb */ color: rgb(33, 185, 188);
/* oklch */ color: oklch(71.5% 0.116 197.0);

Tailwind

colors: {
  custom: {
    50: '#7cced0',
    500: '#21b9bc',
    950: '#000000',
  },
}

SCSS

$custom: #21b9bc;
$custom-light: #7cced0;
$custom-dark: #000000;

JSON

{
  "hex": "#21b9bc",
  "rgb": {
    "r": 33,
    "g": 185,
    "b": 188
  },
  "hsl": {
    "h": 181.161,
    "s": 70.136,
    "l": 43.333
  },
  "oklch": {
    "l": 0.71512,
    "c": 0.11632,
    "h": 197
  },
  "luminance": 0.38652
}

Semantic roles & 50–950 ramp

primary

#21B9BC

secondary

#CD6E6C

accent

#3E3BED

background

#F8FCFC

surface

#F0F9F9

border

#CBD2D2

text

#0B1414

muted

#7C8282

Preview Lab

Preview with #21B9BC

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

Preview Lab → · Contrast checker → · Palette generator →