#21288D#21288D

#21288D is a dark, vivid blue. Relative luminance 0.038; OKLCH L 34.9% C 0.163 H 271.4°. Best body text is #FFFFFF at 11.98:1 contrast (WCAG AA passes).

Color values

HEX	#21288D
RGB	rgb(33, 40, 141)
HSL	hsl(236, 62%, 34%)
HSV	hsv(236, 77%, 55%)
CMYK	cmyk(76.6%, 71.6%, 0%, 44.7%)
CIE-LAB	lab(22.87, 33.63, -56.41)
CIE-LCH	lch(22.87, 65.67, 300.80°)
OKLab	oklab(34.9% 0.0039 -0.1632)
OKLCH	oklch(34.9% 0.163 271.4)
XYZ	xyz(6.1921, 3.7633, 25.5942)
Luminance	0.0376 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21288D #8D8621

analogous

#215E8D #21288D #50218D

triadic

#21288D #8D2128 #288D21

tetradic

#21288D #8D215E #8D8621 #218D50

square

#21288D #8D215E #8D8621 #218D50

split-complementary

#21288D #8D5021 #5E8D21

monochromatic

#0A0C2A #151A5B #21288D #2D36BF #525BD6

Accessibility & contrast

On white

11.98

#21288D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#21288D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21288D

11.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21288D	#FFFFFF	#000000	##FFFFFF
##21288D	1.00	11.98	1.75	11.98
#FFFFFF	11.98	1.00	21.00	1.00
#000000	1.75	21.00	1.00	21.00
##FFFFFF	11.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C90

Deuteranopia (green-blind)

#00318B

Tritanopia (blue-blind)

#004457

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #21288d;
/* rgb */ color: rgb(33, 40, 141);
/* oklch */ color: oklch(34.9% 0.163 271.4);

Tailwind

colors: {
  custom: {
    50: '#6f62af',
    500: '#21288d',
    950: '#000000',
  },
}

SCSS

$custom: #21288d;
$custom-light: #6f62af;
$custom-dark: #000000;

JSON

{
  "hex": "#21288d",
  "rgb": {
    "r": 33,
    "g": 40,
    "b": 141
  },
  "hsl": {
    "h": 236.111,
    "s": 62.069,
    "l": 34.118
  },
  "oklch": {
    "l": 0.349,
    "c": 0.16329,
    "h": 271.4
  },
  "luminance": 0.03764
}

Semantic roles & 50–950 ramp

primary

#21288D

secondary

#BAB350

accent

#DB43E5

background

#F7F5FA

surface

#EDEAF5

border

#C8C6CF

text

#090511

muted

#7B7980

Preview Lab

Preview with #21288D

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

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