#21818A#21818A

#21818A is a mid, moderate teal. Relative luminance 0.179; OKLCH L 55.4% C 0.085 H 204.4°. Best body text is #FFFFFF at 4.59:1 contrast (WCAG AA passes).

Color values

HEX	#21818A
RGB	rgb(33, 129, 138)
HSL	hsl(185, 61%, 34%)
HSV	hsv(185, 76%, 54%)
CMYK	cmyk(76.1%, 6.5%, 0%, 45.9%)
CIE-LAB	lab(49.32, -23.53, -12.71)
CIE-LCH	lch(49.32, 26.75, 208.38°)
OKLab	oklab(55.41% -0.0778 -0.0353)
OKLCH	oklch(55.41% 0.085 204.4)
XYZ	xyz(13.0629, 17.8573, 26.7982)
Luminance	0.1786 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21818A #8A2A21

analogous

#218A5E #21818A #214C8A

triadic

#21818A #8A2181 #818A21

tetradic

#21818A #5E218A #8A2A21 #4C8A21

square

#21818A #5E218A #8A2A21 #4C8A21

split-complementary

#21818A #8A214C #8A5E21

monochromatic

#092527 #155359 #21818A #2DAFBB #50CAD5

Accessibility & contrast

On white

4.59

#21818A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.57

#21818A on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #21818A

4.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21818A	#FFFFFF	#000000	##FFFFFF
##21818A	1.00	4.59	4.57	4.59
#FFFFFF	4.59	1.00	21.00	1.00
#000000	4.57	21.00	1.00	21.00
##FFFFFF	4.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#767B8B

Deuteranopia (green-blind)

#67718A

Tritanopia (blue-blind)

#008784

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #21818a;
/* rgb */ color: rgb(33, 129, 138);
/* oklch */ color: oklch(55.4% 0.085 204.4);

Tailwind

colors: {
  custom: {
    50: '#6fa6ac',
    500: '#21818a',
    950: '#000000',
  },
}

SCSS

$custom: #21818a;
$custom-light: #6fa6ac;
$custom-dark: #000000;

JSON

{
  "hex": "#21818a",
  "rgb": {
    "r": 33,
    "g": 129,
    "b": 138
  },
  "hsl": {
    "h": 185.143,
    "s": 61.404,
    "l": 33.529
  },
  "oklch": {
    "l": 0.5541,
    "c": 0.08549,
    "h": 204.4
  },
  "luminance": 0.17859
}

Semantic roles & 50–950 ramp

primary

#21818A

secondary

#B9574E

accent

#5143E5

background

#F7FAFA

surface

#EDF4F4

border

#C8CECE

text

#080F10

muted

#7B7F7F

Preview Lab

Preview with #21818A

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

Preview Lab → · Contrast checker → · Palette generator →