#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
RGBrgb(33, 212, 207)
HSLhsl(178, 73%, 48%)
HSVhsv(178, 84%, 83%)
CMYKcmyk(84.4%, 0%, 2.4%, 16.9%)
CIE-LABlab(77.23, -42.01, -9.52)
CIE-LCHlch(77.23, 43.07, 192.77°)
OKLaboklab(78.81% -0.1282 -0.0266)
OKLCHoklch(78.81% 0.131 191.7)
XYZxyz(35.4278, 51.9107, 67.1719)
Luminance0.5192 (WCAG relative)
Temperaturecool
Familyteal

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
##21D4CF1.001.8411.3811.38
#FFFFFF1.841.0021.0021.00
#00000011.3821.001.001.00
##00000011.3821.001.001.00

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 →

#21D4CF Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva