#21838B#21838B

#21838B is a mid, moderate teal. Relative luminance 0.184; OKLCH L 56.0% C 0.086 H 203.2°. Best body text is #000000 at 4.68:1 contrast (WCAG AA passes).

Color values

HEX	#21838B
RGB	rgb(33, 131, 139)
HSL	hsl(185, 62%, 34%)
HSV	hsv(185, 76%, 55%)
CMYK	cmyk(76.3%, 5.8%, 0%, 45.5%)
CIE-LAB	lab(50.00, -24.24, -12.28)
CIE-LCH	lch(50.00, 27.17, 206.86°)
OKLab	oklab(55.97% -0.0795 -0.0341)
OKLCH	oklch(55.97% 0.087 203.2)
XYZ	xyz(13.4016, 18.4184, 27.2699)
Luminance	0.1842 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21838B #8B2921

analogous

#218B5E #21838B #214E8B

triadic

#21838B #8B2183 #838B21

tetradic

#21838B #5E218B #8B2921 #4E8B21

square

#21838B #5E218B #8B2921 #4E8B21

split-complementary

#21838B #8B214E #8B5E21

monochromatic

#0A2628 #15545A #21838B #2DB2BC #51CCD6

Accessibility & contrast

On white

4.48

#21838B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.68

#21838B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #21838B

4.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21838B	#FFFFFF	#000000	##000000
##21838B	1.00	4.48	4.68	4.68
#FFFFFF	4.48	1.00	21.00	21.00
#000000	4.68	21.00	1.00	1.00
##000000	4.68	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#787D8C

Deuteranopia (green-blind)

#69728B

Tritanopia (blue-blind)

#008985

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #21838b;
/* rgb */ color: rgb(33, 131, 139);
/* oklch */ color: oklch(56.0% 0.086 203.2);

Tailwind

colors: {
  custom: {
    50: '#6fa7ac',
    500: '#21838b',
    950: '#000000',
  },
}

SCSS

$custom: #21838b;
$custom-light: #6fa7ac;
$custom-dark: #000000;

JSON

{
  "hex": "#21838b",
  "rgb": {
    "r": 33,
    "g": 131,
    "b": 139
  },
  "hsl": {
    "h": 184.528,
    "s": 61.628,
    "l": 33.725
  },
  "oklch": {
    "l": 0.55969,
    "c": 0.0865,
    "h": 203.2
  },
  "luminance": 0.1842
}

Semantic roles & 50–950 ramp

primary

#21838B

secondary

#B9574F

accent

#4F43E5

background

#F7FAFA

surface

#EDF4F4

border

#C8CECE

text

#080F10

muted

#7B7F7F

Preview Lab

Preview with #21838B

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

Preview Lab → · Contrast checker → · Palette generator →