#21339D#21339D

#21339D is a dark, vivid blue. Relative luminance 0.051; OKLCH L 38.4% C 0.172 H 268.8°. Best body text is #FFFFFF at 10.37:1 contrast (WCAG AA passes).

Color values

HEX	#21339D
RGB	rgb(33, 51, 157)
HSL	hsl(231, 65%, 37%)
HSV	hsv(231, 79%, 62%)
CMYK	cmyk(79%, 67.5%, 0%, 38.4%)
CIE-LAB	lab(27.09, 32.44, -59.33)
CIE-LCH	lch(27.09, 67.62, 298.67°)
OKLab	oklab(38.44% -0.0037 -0.1717)
OKLCH	oklch(38.44% 0.172 268.8)
XYZ	xyz(7.8947, 5.1244, 32.4648)
Luminance	0.0512 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21339D #9D8B21

analogous

#21719D #21339D #4D219D

triadic

#21339D #9D2133 #339D21

tetradic

#21339D #9D2171 #9D8B21 #219D4D

square

#21339D #9D2171 #9D8B21 #219D4D

split-complementary

#21339D #9D4D21 #719D21

monochromatic

#0C1238 #16236A #21339D #2C43D0 #5C6EDD

Accessibility & contrast

On white

10.37

#21339D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.03

#21339D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21339D

10.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21339D	#FFFFFF	#000000	##FFFFFF
##21339D	1.00	10.37	2.03	10.37
#FFFFFF	10.37	1.00	21.00	1.00
#000000	2.03	21.00	1.00	21.00
##FFFFFF	10.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0046A0

Deuteranopia (green-blind)

#003A9B

Tritanopia (blue-blind)

#005063

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #21339d;
/* rgb */ color: rgb(33, 51, 157);
/* oklch */ color: oklch(38.4% 0.172 268.8);

Tailwind

colors: {
  custom: {
    50: '#726abb',
    500: '#21339d',
    950: '#000000',
  },
}

SCSS

$custom: #21339d;
$custom-light: #726abb;
$custom-dark: #000000;

JSON

{
  "hex": "#21339d",
  "rgb": {
    "r": 33,
    "g": 51,
    "b": 157
  },
  "hsl": {
    "h": 231.29,
    "s": 65.263,
    "l": 37.255
  },
  "oklch": {
    "l": 0.38437,
    "c": 0.17177,
    "h": 268.8
  },
  "luminance": 0.05125
}

Semantic roles & 50–950 ramp

primary

#21339D

secondary

#C1B259

accent

#D040E8

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#090612

muted

#7B7A81

Preview Lab

Preview with #21339D

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

Preview Lab → · Contrast checker → · Palette generator →