#21568B#21568B

#21568B is a dark, moderate cyan. Relative luminance 0.088; OKLCH L 44.5% C 0.104 H 251.3°. Best body text is #FFFFFF at 7.59:1 contrast (WCAG AA passes).

Color values

HEX	#21568B
RGB	rgb(33, 86, 139)
HSL	hsl(210, 62%, 34%)
HSV	hsv(210, 76%, 55%)
CMYK	cmyk(76.3%, 38.1%, 0%, 45.5%)
CIE-LAB	lab(35.68, 1.83, -34.46)
CIE-LCH	lch(35.68, 34.51, 273.05°)
OKLab	oklab(44.54% -0.0332 -0.0981)
OKLCH	oklch(44.54% 0.104 251.3)
XYZ	xyz(8.6134, 8.8420, 25.6738)
Luminance	0.0884 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21568B #8B5621

analogous

#218B8B #21568B #21218B

triadic

#21568B #8B2156 #568B21

tetradic

#21568B #8B218B #8B5621 #218B21

square

#21568B #8B218B #8B5621 #218B21

split-complementary

#21568B #8B2121 #8B8B21

monochromatic

#0A1928 #15375A #21568B #2D75BC #5193D6

Accessibility & contrast

On white

7.59

#21568B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.77

#21568B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21568B

7.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21568B	#FFFFFF	#000000	##FFFFFF
##21568B	1.00	7.59	2.77	7.59
#FFFFFF	7.59	1.00	21.00	1.00
#000000	2.77	21.00	1.00	21.00
##FFFFFF	7.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D598D

Deuteranopia (green-blind)

#2E4F8A

Tritanopia (blue-blind)

#00636A

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #21568b;
/* rgb */ color: rgb(33, 86, 139);
/* oklch */ color: oklch(44.5% 0.104 251.3);

Tailwind

colors: {
  custom: {
    50: '#6c85ad',
    500: '#21568b',
    950: '#000000',
  },
}

SCSS

$custom: #21568b;
$custom-light: #6c85ad;
$custom-dark: #000000;

JSON

{
  "hex": "#21568b",
  "rgb": {
    "r": 33,
    "g": 86,
    "b": 139
  },
  "hsl": {
    "h": 210,
    "s": 61.628,
    "l": 33.725
  },
  "oklch": {
    "l": 0.44539,
    "c": 0.10358,
    "h": 251.3
  },
  "luminance": 0.08843
}

Semantic roles & 50–950 ramp

primary

#21568B

secondary

#B9844F

accent

#9443E5

background

#F6F8FA

surface

#ECEFF4

border

#C7CACE

text

#080B10

muted

#7A7C7F

Preview Lab

Preview with #21568B

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

Preview Lab → · Contrast checker → · Palette generator →