#21857B#21857B

#21857B is a mid, moderate teal. Relative luminance 0.185; OKLCH L 55.9% C 0.089 H 185.0°. Best body text is #000000 at 4.71:1 contrast (WCAG AA passes).

Color values

HEX	#21857B
RGB	rgb(33, 133, 123)
HSL	hsl(174, 60%, 33%)
HSV	hsv(174, 75%, 52%)
CMYK	cmyk(75.2%, 0%, 7.5%, 47.8%)
CIE-LAB	lab(50.13, -30.17, -2.71)
CIE-LCH	lch(50.13, 30.29, 185.14°)
OKLab	oklab(55.9% -0.0891 -0.0078)
OKLCH	oklch(55.9% 0.089 185)
XYZ	xyz(12.5882, 18.5269, 21.6477)
Luminance	0.1853 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21857B #85212B

analogous

#218549 #21857B #215D85

triadic

#21857B #7B2185 #857B21

tetradic

#21857B #492185 #85212B #5D8521

square

#21857B #492185 #85212B #5D8521

split-complementary

#21857B #85215D #854921

monochromatic

#092320 #15544E #21857B #2DB6A8 #4DD3C6

Accessibility & contrast

On white

4.46

#21857B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.71

#21857B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #21857B

4.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21857B	#FFFFFF	#000000	##000000
##21857B	1.00	4.46	4.71	4.71
#FFFFFF	4.46	1.00	21.00	21.00
#000000	4.71	21.00	1.00	1.00
##000000	4.71	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7E7D7B

Deuteranopia (green-blind)

#70737C

Tritanopia (blue-blind)

#008882

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #21857b;
/* rgb */ color: rgb(33, 133, 123);
/* oklch */ color: oklch(55.9% 0.089 185.0);

Tailwind

colors: {
  custom: {
    50: '#6ea9a1',
    500: '#21857b',
    950: '#000000',
  },
}

SCSS

$custom: #21857b;
$custom-light: #6ea9a1;
$custom-dark: #000000;

JSON

{
  "hex": "#21857b",
  "rgb": {
    "r": 33,
    "g": 133,
    "b": 123
  },
  "hsl": {
    "h": 174,
    "s": 60.241,
    "l": 32.549
  },
  "oklch": {
    "l": 0.55903,
    "c": 0.08944,
    "h": 185
  },
  "luminance": 0.18528
}

Semantic roles & 50–950 ramp

primary

#21857B

secondary

#B64C56

accent

#4454E3

background

#F7FAF9

surface

#EDF4F2

border

#C8CECC

text

#08100E

muted

#7B7F7E

Preview Lab

Preview with #21857B

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

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