#21877B#21877B

#21877B is a mid, moderate teal. Relative luminance 0.191; OKLCH L 56.4% C 0.091 H 183.3°. Best body text is #000000 at 4.82:1 contrast (WCAG AA passes).

Color values

HEX	#21877B
RGB	rgb(33, 135, 123)
HSL	hsl(173, 61%, 33%)
HSV	hsv(173, 76%, 53%)
CMYK	cmyk(75.6%, 0%, 8.9%, 47.1%)
CIE-LAB	lab(50.78, -31.13, -1.76)
CIE-LCH	lch(50.78, 31.18, 183.23°)
OKLab	oklab(56.43% -0.0912 -0.0052)
OKLCH	oklch(56.43% 0.091 183.3)
XYZ	xyz(12.8646, 19.0798, 21.7398)
Luminance	0.1908 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21877B #87212D

analogous

#218748 #21877B #216087

triadic

#21877B #7B2187 #877B21

tetradic

#21877B #482187 #87212D #608721

square

#21877B #482187 #87212D #608721

split-complementary

#21877B #872160 #874821

monochromatic

#092521 #15564E #21877B #2DB8A8 #4FD4C4

Accessibility & contrast

On white

4.36

#21877B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.82

#21877B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #21877B

4.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21877B	#FFFFFF	#000000	##000000
##21877B	1.00	4.36	4.82	4.82
#FFFFFF	4.36	1.00	21.00	21.00
#000000	4.82	21.00	1.00	1.00
##000000	4.82	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#807F7B

Deuteranopia (green-blind)

#72757C

Tritanopia (blue-blind)

#008A83

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #21877b;
/* rgb */ color: rgb(33, 135, 123);
/* oklch */ color: oklch(56.4% 0.091 183.3);

Tailwind

colors: {
  custom: {
    50: '#6eaaa1',
    500: '#21877b',
    950: '#000000',
  },
}

SCSS

$custom: #21877b;
$custom-light: #6eaaa1;
$custom-dark: #000000;

JSON

{
  "hex": "#21877b",
  "rgb": {
    "r": 33,
    "g": 135,
    "b": 123
  },
  "hsl": {
    "h": 172.941,
    "s": 60.714,
    "l": 32.941
  },
  "oklch": {
    "l": 0.56433,
    "c": 0.09138,
    "h": 183.3
  },
  "luminance": 0.19081
}

Semantic roles & 50–950 ramp

primary

#21877B

secondary

#B74D59

accent

#4457E4

background

#F7FAF9

surface

#EDF4F2

border

#C8CECC

text

#08100E

muted

#7B7F7E

Preview Lab

Preview with #21877B

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

Preview Lab → · Contrast checker → · Palette generator →