#21816B#21816B

#21816B is a mid, moderate teal. Relative luminance 0.171; OKLCH L 54.3% C 0.093 H 173.6°. Best body text is #FFFFFF at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#21816B
RGB	rgb(33, 129, 107)
HSL	hsl(166, 59%, 32%)
HSV	hsv(166, 74%, 51%)
CMYK	cmyk(74.4%, 0%, 17.1%, 49.4%)
CIE-LAB	lab(48.37, -32.82, 4.09)
CIE-LCH	lch(48.37, 33.08, 172.89°)
OKLab	oklab(54.31% -0.0927 0.0103)
OKLCH	oklch(54.31% 0.093 173.6)
XYZ	xyz(11.1299, 17.0841, 16.6180)
Luminance	0.1709 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21816B #812137

analogous

#21813B #21816B #216781

triadic

#21816B #6B2181 #816B21

tetradic

#21816B #3B2181 #812137 #678121

square

#21816B #3B2181 #812137 #678121

split-complementary

#21816B #812167 #813B21

monochromatic

#08201A #155043 #21816B #2DB293 #4BD1B2

Accessibility & contrast

On white

4.75

#21816B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.42

#21816B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #21816B

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21816B	#FFFFFF	#000000	##FFFFFF
##21816B	1.00	4.75	4.42	4.75
#FFFFFF	4.75	1.00	21.00	1.00
#000000	4.42	21.00	1.00	21.00
##FFFFFF	4.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#7C786A

Deuteranopia (green-blind)

#706F6D

Tritanopia (blue-blind)

#00827B

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #21816b;
/* rgb */ color: rgb(33, 129, 107);
/* oklch */ color: oklch(54.3% 0.093 173.6);

Tailwind

colors: {
  custom: {
    50: '#6ca695',
    500: '#21816b',
    950: '#000000',
  },
}

SCSS

$custom: #21816b;
$custom-light: #6ca695;
$custom-dark: #000000;

JSON

{
  "hex": "#21816b",
  "rgb": {
    "r": 33,
    "g": 129,
    "b": 107
  },
  "hsl": {
    "h": 166.25,
    "s": 59.259,
    "l": 31.765
  },
  "oklch": {
    "l": 0.54314,
    "c": 0.09331,
    "h": 173.6
  },
  "luminance": 0.17085
}

Semantic roles & 50–950 ramp

primary

#21816B

secondary

#B44A62

accent

#4569E2

background

#F6FAF9

surface

#ECF4F1

border

#C7CECB

text

#080F0D

muted

#7A7F7E

Preview Lab

Preview with #21816B

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

Preview Lab → · Contrast checker → · Palette generator →