#21ADA8#21ADA8

#21ADA8 is a light, moderate teal. Relative luminance 0.330; OKLCH L 67.8% C 0.111 H 191.0°. Best body text is #000000 at 7.61:1 contrast (WCAG AA passes).

Color values

HEX#21ADA8
RGBrgb(33, 173, 168)
HSLhsl(178, 68%, 40%)
HSVhsv(178, 81%, 68%)
CMYKcmyk(80.9%, 0%, 2.9%, 32.2%)
CIE-LABlab(64.19, -35.72, -7.59)
CIE-LCHlch(64.19, 36.52, 191.99°)
OKLaboklab(67.8% -0.1086 -0.0212)
OKLCHoklch(67.8% 0.111 191)
XYZxyz(22.6353, 33.0348, 42.2216)
Luminance0.3304 (WCAG relative)
Temperaturecool
Familyteal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#21ADA8 #AD2126
analogous
#21AD62 #21ADA8 #216CAD
triadic
#21ADA8 #A821AD #ADA821
tetradic
#21ADA8 #6221AD #AD2126 #6CAD21
square
#21ADA8 #6221AD #AD2126 #6CAD21
split-complementary
#21ADA8 #AD216C #AD6221
monochromatic
#0D4644 #177A76 #21ADA8 #33D8D2 #66E2DE

Accessibility & contrast

On white

2.76
#21ADA8 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

7.61
#21ADA8 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #21ADA8
7.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##21ADA8#FFFFFF#000000##000000
##21ADA81.002.767.617.61
#FFFFFF2.761.0021.0021.00
#0000007.6121.001.001.00
##0000007.6121.001.001.00

Color blindness preview

Protanopia (red-blind)
#A2A4A8
Deuteranopia (green-blind)
#8F96A9
Tritanopia (blue-blind)
#00B2AB
Achromatopsia (no color)
#9C9C9C

Design tokens & code

CSS
--color: #21ada8;
/* rgb */ color: rgb(33, 173, 168);
/* oklch */ color: oklch(67.8% 0.111 191.0);
Tailwind
colors: {
  custom: {
    50: '#78c6c1',
    500: '#21ada8',
    950: '#000000',
  },
}
SCSS
$custom: #21ada8;
$custom-light: #78c6c1;
$custom-dark: #000000;
JSON
{
  "hex": "#21ada8",
  "rgb": {
    "r": 33,
    "g": 173,
    "b": 168
  },
  "hsl": {
    "h": 177.857,
    "s": 67.961,
    "l": 40.392
  },
  "oklch": {
    "l": 0.67804,
    "c": 0.11066,
    "h": 191
  },
  "luminance": 0.33038
}

Semantic roles & 50–950 ramp

primary
#21ADA8
secondary
#C76266
accent
#3D43EB
background
#F8FCFB
surface
#EFF8F7
border
#CAD1D0
text
#0B1312
muted
#7C8281

Preview Lab

Preview with #21ADA8

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

Preview Lab → · Contrast checker → · Palette generator →

#21ADA8 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva