#21566E#21566E

#21566E is a dark, moderate cyan. Relative luminance 0.081; OKLCH L 42.9% C 0.068 H 231.0°. Best body text is #FFFFFF at 8.01:1 contrast (WCAG AA passes).

Color values

HEX	#21566E
RGB	rgb(33, 86, 110)
HSL	hsl(199, 54%, 28%)
HSV	hsv(199, 70%, 43%)
CMYK	cmyk(70%, 21.8%, 0%, 56.9%)
CIE-LAB	lab(34.20, -9.13, -18.89)
CIE-LCH	lch(34.20, 20.98, 244.21°)
OKLab	oklab(42.89% -0.0429 -0.0529)
OKLCH	oklch(42.89% 0.068 231)
XYZ	xyz(6.7683, 8.1040, 15.9563)
Luminance	0.0810 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21566E #6E3921

analogous

#216E5F #21566E #21306E

triadic

#21566E #6E2156 #566E21

tetradic

#21566E #5F216E #6E3921 #306E21

square

#21566E #5F216E #6E3921 #306E21

split-complementary

#21566E #6E2130 #6E5F21

monochromatic

#071218 #13313F #21566E #2F7B9D #439EC7

Accessibility & contrast

On white

8.01

#21566E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.62

#21566E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21566E

8.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21566E	#FFFFFF	#000000	##FFFFFF
##21566E	1.00	8.01	2.62	8.01
#FFFFFF	8.01	1.00	21.00	1.00
#000000	2.62	21.00	1.00	21.00
##FFFFFF	8.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A556F

Deuteranopia (green-blind)

#3F4D6E

Tritanopia (blue-blind)

#005D5E

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #21566e;
/* rgb */ color: rgb(33, 86, 110);
/* oklch */ color: oklch(42.9% 0.068 231.0);

Tailwind

colors: {
  custom: {
    50: '#668597',
    500: '#21566e',
    950: '#000000',
  },
}

SCSS

$custom: #21566e;
$custom-light: #668597;
$custom-dark: #000000;

JSON

{
  "hex": "#21566e",
  "rgb": {
    "r": 33,
    "g": 86,
    "b": 110
  },
  "hsl": {
    "h": 198.701,
    "s": 53.846,
    "l": 28.039
  },
  "oklch": {
    "l": 0.42885,
    "c": 0.06813,
    "h": 231
  },
  "luminance": 0.08105
}

Semantic roles & 50–950 ramp

primary

#21566E

secondary

#A26549

accent

#784BDD

background

#F6F8F9

surface

#EBEFF2

border

#C6CACC

text

#060B0D

muted

#7A7C7E

Preview Lab

Preview with #21566E

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

Preview Lab → · Contrast checker → · Palette generator →