#21837B#21837B

#21837B is a mid, moderate teal. Relative luminance 0.180; OKLCH L 55.4% C 0.088 H 186.8°. Best body text is #000000 at 4.60:1 contrast (WCAG AA passes).

Color values

HEX	#21837B
RGB	rgb(33, 131, 123)
HSL	hsl(175, 60%, 32%)
HSV	hsv(175, 75%, 51%)
CMYK	cmyk(74.8%, 0%, 6.1%, 48.6%)
CIE-LAB	lab(49.48, -29.21, -3.67)
CIE-LCH	lch(49.48, 29.44, 187.17°)
OKLab	oklab(55.37% -0.087 -0.0104)
OKLCH	oklch(55.37% 0.088 186.8)
XYZ	xyz(12.3170, 17.9845, 21.5573)
Luminance	0.1799 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21837B #832129

analogous

#21834A #21837B #215A83

triadic

#21837B #7B2183 #837B21

tetradic

#21837B #4A2183 #832129 #5A8321

square

#21837B #4A2183 #832129 #5A8321

split-complementary

#21837B #83215A #834A21

monochromatic

#08211F #15524D #21837B #2DB4A9 #4CD2C7

Accessibility & contrast

On white

4.57

#21837B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.60

#21837B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #21837B

4.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21837B	#FFFFFF	#000000	##000000
##21837B	1.00	4.57	4.60	4.60
#FFFFFF	4.57	1.00	21.00	21.00
#000000	4.60	21.00	1.00	1.00
##000000	4.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7C7C7B

Deuteranopia (green-blind)

#6E717C

Tritanopia (blue-blind)

#008680

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #21837b;
/* rgb */ color: rgb(33, 131, 123);
/* oklch */ color: oklch(55.4% 0.088 186.8);

Tailwind

colors: {
  custom: {
    50: '#6da7a1',
    500: '#21837b',
    950: '#000000',
  },
}

SCSS

$custom: #21837b;
$custom-light: #6da7a1;
$custom-dark: #000000;

JSON

{
  "hex": "#21837b",
  "rgb": {
    "r": 33,
    "g": 131,
    "b": 123
  },
  "hsl": {
    "h": 175.102,
    "s": 59.756,
    "l": 32.157
  },
  "oklch": {
    "l": 0.55372,
    "c": 0.08759,
    "h": 186.8
  },
  "luminance": 0.17986
}

Semantic roles & 50–950 ramp

primary

#21837B

secondary

#B54B53

accent

#4552E3

background

#F7FAF9

surface

#EDF4F2

border

#C8CECC

text

#080F0E

muted

#7B7F7E

Preview Lab

Preview with #21837B

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

Preview Lab → · Contrast checker → · Palette generator →