#21566F#21566F

#21566F is a dark, moderate cyan. Relative luminance 0.081; OKLCH L 42.9% C 0.069 H 232.1°. Best body text is #FFFFFF at 8.00:1 contrast (WCAG AA passes).

Color values

HEX	#21566F
RGB	rgb(33, 86, 111)
HSL	hsl(199, 54%, 28%)
HSV	hsv(199, 70%, 44%)
CMYK	cmyk(70.3%, 22.5%, 0%, 56.5%)
CIE-LAB	lab(34.24, -8.77, -19.45)
CIE-LCH	lch(34.24, 21.33, 245.74°)
OKLab	oklab(42.94% -0.0425 -0.0545)
OKLCH	oklch(42.94% 0.069 232.1)
XYZ	xyz(6.8231, 8.1259, 16.2447)
Luminance	0.0813 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21566F #6F3A21

analogous

#216F61 #21566F #212F6F

triadic

#21566F #6F2156 #566F21

tetradic

#21566F #61216F #6F3A21 #2F6F21

square

#21566F #61216F #6F3A21 #2F6F21

split-complementary

#21566F #6F212F #6F6121

monochromatic

#071218 #133140 #21566F #2F7B9E #439DC7

Accessibility & contrast

On white

8.00

#21566F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.63

#21566F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21566F

8.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21566F	#FFFFFF	#000000	##FFFFFF
##21566F	1.00	8.00	2.63	8.00
#FFFFFF	8.00	1.00	21.00	1.00
#000000	2.63	21.00	1.00	21.00
##FFFFFF	8.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A5570

Deuteranopia (green-blind)

#3F4D6F

Tritanopia (blue-blind)

#005D5E

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #21566f;
/* rgb */ color: rgb(33, 86, 111);
/* oklch */ color: oklch(42.9% 0.069 232.1);

Tailwind

colors: {
  custom: {
    50: '#668598',
    500: '#21566f',
    950: '#000000',
  },
}

SCSS

$custom: #21566f;
$custom-light: #668598;
$custom-dark: #000000;

JSON

{
  "hex": "#21566f",
  "rgb": {
    "r": 33,
    "g": 86,
    "b": 111
  },
  "hsl": {
    "h": 199.231,
    "s": 54.167,
    "l": 28.235
  },
  "oklch": {
    "l": 0.42936,
    "c": 0.06913,
    "h": 232.1
  },
  "luminance": 0.08127
}

Semantic roles & 50–950 ramp

primary

#21566F

secondary

#A36649

accent

#794ADE

background

#F6F8F9

surface

#EBEFF2

border

#C6CACC

text

#060B0D

muted

#7A7C7E

Preview Lab

Preview with #21566F

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

Preview Lab → · Contrast checker → · Palette generator →