#21516D#21516D

#21516D is a dark, moderate cyan. Relative luminance 0.073; OKLCH L 41.5% C 0.070 H 237.4°. Best body text is #FFFFFF at 8.53:1 contrast (WCAG AA passes).

Color values

HEX	#21516D
RGB	rgb(33, 81, 109)
HSL	hsl(202, 54%, 28%)
HSV	hsv(202, 70%, 43%)
CMYK	cmyk(69.7%, 25.7%, 0%, 57.3%)
CIE-LAB	lab(32.51, -6.42, -20.89)
CIE-LCH	lch(32.51, 21.86, 252.92°)
OKLab	oklab(41.52% -0.0375 -0.0587)
OKLCH	oklch(41.52% 0.07 237.4)
XYZ	xyz(6.3289, 7.3117, 15.5428)
Luminance	0.0731 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21516D #6D3D21

analogous

#216D63 #21516D #212B6D

triadic

#21516D #6D2151 #516D21

tetradic

#21516D #63216D #6D3D21 #2B6D21

square

#21516D #63216D #6D3D21 #2B6D21

split-complementary

#21516D #6D212B #6D6321

monochromatic

#071117 #132E3E #21516D #2F749C #4295C6

Accessibility & contrast

On white

8.53

#21516D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.46

#21516D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21516D

8.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21516D	#FFFFFF	#000000	##FFFFFF
##21516D	1.00	8.53	2.46	8.53
#FFFFFF	8.53	1.00	21.00	1.00
#000000	2.46	21.00	1.00	21.00
##FFFFFF	8.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#44516E

Deuteranopia (green-blind)

#39496D

Tritanopia (blue-blind)

#00585B

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #21516d;
/* rgb */ color: rgb(33, 81, 109);
/* oklch */ color: oklch(41.5% 0.070 237.4);

Tailwind

colors: {
  custom: {
    50: '#668197',
    500: '#21516d',
    950: '#000000',
  },
}

SCSS

$custom: #21516d;
$custom-light: #668197;
$custom-dark: #000000;

JSON

{
  "hex": "#21516d",
  "rgb": {
    "r": 33,
    "g": 81,
    "b": 109
  },
  "hsl": {
    "h": 202.105,
    "s": 53.521,
    "l": 27.843
  },
  "oklch": {
    "l": 0.41523,
    "c": 0.06969,
    "h": 237.4
  },
  "luminance": 0.07312
}

Semantic roles & 50–950 ramp

primary

#21516D

secondary

#A16949

accent

#814BDD

background

#F6F7F9

surface

#EBEEF2

border

#C6C9CC

text

#060A0D

muted

#7A7C7E

Preview Lab

Preview with #21516D

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

Preview Lab → · Contrast checker → · Palette generator →