#21978B#21978B

#21978B is a mid, moderate teal. Relative luminance 0.243; OKLCH L 61.2% C 0.100 H 184.5°. Best body text is #000000 at 5.86:1 contrast (WCAG AA passes).

Color values

HEX	#21978B
RGB	rgb(33, 151, 139)
HSL	hsl(174, 64%, 36%)
HSV	hsv(174, 78%, 59%)
CMYK	cmyk(78.1%, 0%, 7.9%, 40.8%)
CIE-LAB	lab(56.41, -34.01, -2.73)
CIE-LCH	lch(56.41, 34.12, 184.59°)
OKLab	oklab(61.18% -0.1002 -0.0079)
OKLCH	oklch(61.18% 0.1 184.5)
XYZ	xyz(16.3517, 24.3186, 28.2532)
Luminance	0.2432 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21978B #97212D

analogous

#219750 #21978B #216897

triadic

#21978B #8B2197 #978B21

tetradic

#21978B #502197 #97212D #689721

square

#21978B #502197 #97212D #689721

split-complementary

#21978B #972168 #975021

monochromatic

#0B332F #16655D #21978B #2CC9B9 #58DACD

Accessibility & contrast

On white

3.58

#21978B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.86

#21978B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #21978B

5.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21978B	#FFFFFF	#000000	##000000
##21978B	1.00	3.58	5.86	5.86
#FFFFFF	3.58	1.00	21.00	21.00
#000000	5.86	21.00	1.00	1.00
##000000	5.86	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8F8E8B

Deuteranopia (green-blind)

#7F828C

Tritanopia (blue-blind)

#009A93

Achromatopsia (no color)

#878787

Design tokens & code

CSS

--color: #21978b;
/* rgb */ color: rgb(33, 151, 139);
/* oklch */ color: oklch(61.2% 0.100 184.5);

Tailwind

colors: {
  custom: {
    50: '#72b6ac',
    500: '#21978b',
    950: '#000000',
  },
}

SCSS

$custom: #21978b;
$custom-light: #72b6ac;
$custom-dark: #000000;

JSON

{
  "hex": "#21978b",
  "rgb": {
    "r": 33,
    "g": 151,
    "b": 139
  },
  "hsl": {
    "h": 173.898,
    "s": 64.13,
    "l": 36.078
  },
  "oklch": {
    "l": 0.61175,
    "c": 0.10047,
    "h": 184.5
  },
  "luminance": 0.24321
}

Semantic roles & 50–950 ramp

primary

#21978B

secondary

#BE5560

accent

#4152E7

background

#F7FBFA

surface

#EDF6F4

border

#C8D0CE

text

#091110

muted

#7B807F

Preview Lab

Preview with #21978B

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

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