#21518D#21518D

#21518D is a dark, moderate cyan. Relative luminance 0.081; OKLCH L 43.5% C 0.112 H 255.6°. Best body text is #FFFFFF at 8.00:1 contrast (WCAG AA passes).

Color values

HEX	#21518D
RGB	rgb(33, 81, 141)
HSL	hsl(213, 62%, 34%)
HSV	hsv(213, 77%, 55%)
CMYK	cmyk(76.6%, 42.6%, 0%, 44.7%)
CIE-LAB	lab(34.25, 5.89, -37.95)
CIE-LCH	lch(34.25, 38.40, 278.83°)
OKLab	oklab(43.47% -0.0278 -0.1085)
OKLCH	oklch(43.47% 0.112 255.6)
XYZ	xyz(8.3756, 8.1303, 26.3220)
Luminance	0.0813 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21518D #8D5D21

analogous

#21878D #21518D #27218D

triadic

#21518D #8D2151 #518D21

tetradic

#21518D #8D2187 #8D5D21 #218D27

square

#21518D #8D2187 #8D5D21 #218D27

split-complementary

#21518D #8D2721 #878D21

monochromatic

#0A182A #15355B #21518D #2D6DBF #528DD6

Accessibility & contrast

On white

8.00

#21518D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.63

#21518D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21518D

8.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21518D	#FFFFFF	#000000	##FFFFFF
##21518D	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)

#34568F

Deuteranopia (green-blind)

#224C8C

Tritanopia (blue-blind)

#005F68

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #21518d;
/* rgb */ color: rgb(33, 81, 141);
/* oklch */ color: oklch(43.5% 0.112 255.6);

Tailwind

colors: {
  custom: {
    50: '#6c81af',
    500: '#21518d',
    950: '#000000',
  },
}

SCSS

$custom: #21518d;
$custom-light: #6c81af;
$custom-dark: #000000;

JSON

{
  "hex": "#21518d",
  "rgb": {
    "r": 33,
    "g": 81,
    "b": 141
  },
  "hsl": {
    "h": 213.333,
    "s": 62.069,
    "l": 34.118
  },
  "oklch": {
    "l": 0.43466,
    "c": 0.11198,
    "h": 255.6
  },
  "luminance": 0.08131
}

Semantic roles & 50–950 ramp

primary

#21518D

secondary

#BA8B50

accent

#9D43E5

background

#F6F7FA

surface

#ECEEF4

border

#C7C9CE

text

#080A10

muted

#7A7C7F

Preview Lab

Preview with #21518D

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

Preview Lab → · Contrast checker → · Palette generator →