#21238B#21238B

#21238B is a dark, vivid blue. Relative luminance 0.034; OKLCH L 33.9% C 0.166 H 272.4°. Best body text is #FFFFFF at 12.52:1 contrast (WCAG AA passes).

Color values

HEX	#21238B
RGB	rgb(33, 35, 139)
HSL	hsl(239, 62%, 34%)
HSV	hsv(239, 76%, 55%)
CMYK	cmyk(76.3%, 74.8%, 0%, 45.5%)
CIE-LAB	lab(21.54, 36.02, -57.36)
CIE-LCH	lch(21.54, 67.73, 302.13°)
OKLab	oklab(33.88% 0.0069 -0.166)
OKLCH	oklch(33.88% 0.166 272.4)
XYZ	xyz(5.8869, 3.3889, 24.7650)
Luminance	0.0339 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21238B #8B8921

analogous

#21588B #21238B #54218B

triadic

#21238B #8B2123 #238B21

tetradic

#21238B #8B2158 #8B8921 #218B54

square

#21238B #8B2158 #8B8921 #218B54

split-complementary

#21238B #8B5421 #588B21

monochromatic

#0A0A28 #15175A #21238B #2D2FBC #5153D6

Accessibility & contrast

On white

12.52

#21238B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#21238B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21238B

12.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21238B	#FFFFFF	#000000	##FFFFFF
##21238B	1.00	12.52	1.68	12.52
#FFFFFF	12.52	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00398E

Deuteranopia (green-blind)

#002E89

Tritanopia (blue-blind)

#004155

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #21238b;
/* rgb */ color: rgb(33, 35, 139);
/* oklch */ color: oklch(33.9% 0.166 272.4);

Tailwind

colors: {
  custom: {
    50: '#6f5fae',
    500: '#21238b',
    950: '#000000',
  },
}

SCSS

$custom: #21238b;
$custom-light: #6f5fae;
$custom-dark: #000000;

JSON

{
  "hex": "#21238b",
  "rgb": {
    "r": 33,
    "g": 35,
    "b": 139
  },
  "hsl": {
    "h": 238.868,
    "s": 61.628,
    "l": 33.725
  },
  "oklch": {
    "l": 0.3388,
    "c": 0.16614,
    "h": 272.4
  },
  "luminance": 0.03389
}

Semantic roles & 50–950 ramp

primary

#21238B

secondary

#B9B74F

accent

#E243E5

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#090410

muted

#7B797F

Preview Lab

Preview with #21238B

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

Preview Lab → · Contrast checker → · Palette generator →