#21308C#21308C

#21308C is a dark, vivid blue. Relative luminance 0.043; OKLCH L 36.2% C 0.152 H 269.7°. Best body text is #FFFFFF at 11.25:1 contrast (WCAG AA passes).

Color values

HEX	#21308C
RGB	rgb(33, 48, 140)
HSL	hsl(232, 62%, 34%)
HSV	hsv(232, 76%, 55%)
CMYK	cmyk(76.4%, 65.7%, 0%, 45.1%)
CIE-LAB	lab(24.73, 28.01, -52.73)
CIE-LCH	lch(24.73, 59.71, 297.98°)
OKLab	oklab(36.22% -0.0008 -0.1525)
OKLCH	oklch(36.22% 0.152 269.7)
XYZ	xyz(6.4162, 4.3300, 25.3035)
Luminance	0.0433 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21308C #8C7D21

analogous

#21668C #21308C #48218C

triadic

#21308C #8C2130 #308C21

tetradic

#21308C #8C2166 #8C7D21 #218C48

square

#21308C #8C2166 #8C7D21 #218C48

split-complementary

#21308C #8C4821 #668C21

monochromatic

#0A0E29 #151F5A #21308C #2D41BE #5164D6

Accessibility & contrast

On white

11.25

#21308C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#21308C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21308C

11.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21308C	#FFFFFF	#000000	##FFFFFF
##21308C	1.00	11.25	1.87	11.25
#FFFFFF	11.25	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00408F

Deuteranopia (green-blind)

#00368A

Tritanopia (blue-blind)

#004859

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #21308c;
/* rgb */ color: rgb(33, 48, 140);
/* oklch */ color: oklch(36.2% 0.152 269.7);

Tailwind

colors: {
  custom: {
    50: '#6e68ae',
    500: '#21308c',
    950: '#000000',
  },
}

SCSS

$custom: #21308c;
$custom-light: #6e68ae;
$custom-dark: #000000;

JSON

{
  "hex": "#21308c",
  "rgb": {
    "r": 33,
    "g": 48,
    "b": 140
  },
  "hsl": {
    "h": 231.589,
    "s": 61.85,
    "l": 33.922
  },
  "oklch": {
    "l": 0.36224,
    "c": 0.15246,
    "h": 269.7
  },
  "luminance": 0.04331
}

Semantic roles & 50–950 ramp

primary

#21308C

secondary

#B9AB4F

accent

#CE43E5

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080610

muted

#7B7A7F

Preview Lab

Preview with #21308C

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

Preview Lab → · Contrast checker → · Palette generator →