#21A8A4#21A8A4

#21A8A4 is a light, moderate teal. Relative luminance 0.310; OKLCH L 66.4% C 0.108 H 191.7°. Best body text is #000000 at 7.20:1 contrast (WCAG AA passes).

Color values

HEX	#21A8A4
RGB	rgb(33, 168, 164)
HSL	hsl(178, 67%, 39%)
HSV	hsv(178, 80%, 66%)
CMYK	cmyk(80.4%, 0%, 2.4%, 34.1%)
CIE-LAB	lab(62.51, -34.58, -7.84)
CIE-LCH	lch(62.51, 35.46, 192.78°)
OKLab	oklab(66.4% -0.1055 -0.0219)
OKLCH	oklch(66.4% 0.108 191.7)
XYZ	xyz(21.3275, 31.0062, 39.9755)
Luminance	0.3101 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21A8A4 #A82125

analogous

#21A861 #21A8A4 #2169A8

triadic

#21A8A4 #A421A8 #A8A421

tetradic

#21A8A4 #6121A8 #A82125 #69A821

square

#21A8A4 #6121A8 #A82125 #69A821

split-complementary

#21A8A4 #A82169 #A86121

monochromatic

#0D4240 #177572 #21A8A4 #30D6D1 #63E0DD

Accessibility & contrast

On white

2.92

#21A8A4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.20

#21A8A4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #21A8A4

7.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21A8A4	#FFFFFF	#000000	##000000
##21A8A4	1.00	2.92	7.20	7.20
#FFFFFF	2.92	1.00	21.00	21.00
#000000	7.20	21.00	1.00	1.00
##000000	7.20	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9D9FA4

Deuteranopia (green-blind)

#8B91A5

Tritanopia (blue-blind)

#00ADA6

Achromatopsia (no color)

#979797

Design tokens & code

CSS

--color: #21a8a4;
/* rgb */ color: rgb(33, 168, 164);
/* oklch */ color: oklch(66.4% 0.108 191.7);

Tailwind

colors: {
  custom: {
    50: '#77c2be',
    500: '#21a8a4',
    950: '#000000',
  },
}

SCSS

$custom: #21a8a4;
$custom-light: #77c2be;
$custom-dark: #000000;

JSON

{
  "hex": "#21a8a4",
  "rgb": {
    "r": 33,
    "g": 168,
    "b": 164
  },
  "hsl": {
    "h": 178.222,
    "s": 67.164,
    "l": 39.412
  },
  "oklch": {
    "l": 0.66399,
    "c": 0.10778,
    "h": 191.7
  },
  "luminance": 0.31009
}

Semantic roles & 50–950 ramp

primary

#21A8A4

secondary

#C55F62

accent

#3E43EA

background

#F7FCFB

surface

#EEF8F6

border

#C9D1D0

text

#0A1212

muted

#7C8181

Preview Lab

Preview with #21A8A4

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

Preview Lab → · Contrast checker → · Palette generator →