#21D4CF#21D4CF

#21D4CF is a light, vivid teal. Relative luminance 0.519; OKLCH L 78.8% C 0.131 H 191.7°. Best body text is #000000 at 11.38:1 contrast (WCAG AA passes).

Color values

HEX	#21D4CF
RGB	rgb(33, 212, 207)
HSL	hsl(178, 73%, 48%)
HSV	hsv(178, 84%, 83%)
CMYK	cmyk(84.4%, 0%, 2.4%, 16.9%)
CIE-LAB	lab(77.23, -42.01, -9.52)
CIE-LCH	lch(77.23, 43.07, 192.77°)
OKLab	oklab(78.81% -0.1282 -0.0266)
OKLCH	oklch(78.81% 0.131 191.7)
XYZ	xyz(35.4278, 51.9107, 67.1719)
Luminance	0.5192 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21D4CF #D42126

analogous

#21D475 #21D4CF #217FD4

triadic

#21D4CF #CF21D4 #D4CF21

tetradic

#21D4CF #7521D4 #D42126 #7FD421

square

#21D4CF #7521D4 #D42126 #7FD421

split-complementary

#21D4CF #D4217F #D47521

monochromatic

#116A68 #199F9B #21D4CF #4FE4DF #84ECE9

Accessibility & contrast

On white

1.84

#21D4CF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.38

#21D4CF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #21D4CF

11.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21D4CF	#FFFFFF	#000000	##000000
##21D4CF	1.00	1.84	11.38	11.38
#FFFFFF	1.84	1.00	21.00	21.00
#000000	11.38	21.00	1.00	1.00
##000000	11.38	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C6C9CF

Deuteranopia (green-blind)

#AFB8D0

Tritanopia (blue-blind)

#00DAD2

Achromatopsia (no color)

#BFBFBF

Design tokens & code

CSS

--color: #21d4cf;
/* rgb */ color: rgb(33, 212, 207);
/* oklch */ color: oklch(78.8% 0.131 191.7);

Tailwind

colors: {
  custom: {
    50: '#82e2dd',
    500: '#21d4cf',
    950: '#000000',
  },
}

SCSS

$custom: #21d4cf;
$custom-light: #82e2dd;
$custom-dark: #000000;

JSON

{
  "hex": "#21d4cf",
  "rgb": {
    "r": 33,
    "g": 212,
    "b": 207
  },
  "hsl": {
    "h": 178.324,
    "s": 73.061,
    "l": 48.039
  },
  "oklch": {
    "l": 0.78808,
    "c": 0.13092,
    "h": 191.7
  },
  "luminance": 0.51915
}

Semantic roles & 50–950 ramp

primary

#21D4CF

secondary

#742528

accent

#383DF0

background

#FCFEFE

surface

#F4FCFC

border

#CED5D5

text

#0D1515

muted

#7F8484

Preview Lab

Preview with #21D4CF

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

Preview Lab → · Contrast checker → · Palette generator →