#21308D#21308D

#21308D is a dark, vivid blue. Relative luminance 0.044; OKLCH L 36.3% C 0.154 H 269.7°. Best body text is #FFFFFF at 11.22:1 contrast (WCAG AA passes).

Color values

HEX	#21308D
RGB	rgb(33, 48, 141)
HSL	hsl(232, 62%, 34%)
HSV	hsv(232, 77%, 55%)
CMYK	cmyk(76.6%, 66%, 0%, 44.7%)
CIE-LAB	lab(24.83, 28.39, -53.20)
CIE-LCH	lch(24.83, 60.30, 298.09°)
OKLab	oklab(36.32% -0.0009 -0.1538)
OKLCH	oklch(36.32% 0.154 269.7)
XYZ	xyz(6.4902, 4.3596, 25.6936)
Luminance	0.0436 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21308D #8D7E21

analogous

#21668D #21308D #48218D

triadic

#21308D #8D2130 #308D21

tetradic

#21308D #8D2166 #8D7E21 #218D48

square

#21308D #8D2166 #8D7E21 #218D48

split-complementary

#21308D #8D4821 #668D21

monochromatic

#0A0E2A #151F5B #21308D #2D41BF #5264D6

Accessibility & contrast

On white

11.22

#21308D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#21308D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21308D

11.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21308D	#FFFFFF	#000000	##FFFFFF
##21308D	1.00	11.22	1.87	11.22
#FFFFFF	11.22	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004090

Deuteranopia (green-blind)

#00368B

Tritanopia (blue-blind)

#00485A

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #21308d;
/* rgb */ color: rgb(33, 48, 141);
/* oklch */ color: oklch(36.3% 0.154 269.7);

Tailwind

colors: {
  custom: {
    50: '#6e68af',
    500: '#21308d',
    950: '#000000',
  },
}

SCSS

$custom: #21308d;
$custom-light: #6e68af;
$custom-dark: #000000;

JSON

{
  "hex": "#21308d",
  "rgb": {
    "r": 33,
    "g": 48,
    "b": 141
  },
  "hsl": {
    "h": 231.667,
    "s": 62.069,
    "l": 34.118
  },
  "oklch": {
    "l": 0.36321,
    "c": 0.15383,
    "h": 269.7
  },
  "luminance": 0.0436
}

Semantic roles & 50–950 ramp

primary

#21308D

secondary

#BAAB50

accent

#CF43E5

background

#F7F6FA

surface

#EDEBF5

border

#C8C6CF

text

#080610

muted

#7B7A7F

Preview Lab

Preview with #21308D

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

Preview Lab → · Contrast checker → · Palette generator →