#21255D#21255D

#21255D is a dark, moderate blue. Relative luminance 0.024; OKLCH L 29.7% C 0.099 H 275.5°. Best body text is #FFFFFF at 14.12:1 contrast (WCAG AA passes).

Color values

HEX	#21255D
RGB	rgb(33, 37, 93)
HSL	hsl(236, 48%, 25%)
HSV	hsv(236, 65%, 36%)
CMYK	cmyk(64.5%, 60.2%, 0%, 63.5%)
CIE-LAB	lab(17.63, 17.57, -34.17)
CIE-LCH	lch(17.63, 38.42, 297.20°)
OKLab	oklab(29.68% 0.0095 -0.0981)
OKLCH	oklch(29.68% 0.099 275.5)
XYZ	xyz(3.2639, 2.4365, 10.6521)
Luminance	0.0244 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21255D #5D5921

analogous

#21435D #21255D #3B215D

triadic

#21255D #5D2125 #255D21

tetradic

#21255D #5D2143 #5D5921 #215D3B

square

#21255D #5D2143 #5D5921 #215D3B

split-complementary

#21255D #5D3B21 #435D21

monochromatic

#080917 #111330 #21255D #31378A #4149B7

Accessibility & contrast

On white

14.12

#21255D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.49

#21255D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21255D

14.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21255D	#FFFFFF	#000000	##FFFFFF
##21255D	1.00	14.12	1.49	14.12
#FFFFFF	14.12	1.00	21.00	1.00
#000000	1.49	21.00	1.00	21.00
##FFFFFF	14.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002E5F

Deuteranopia (green-blind)

#00295C

Tritanopia (blue-blind)

#00323D

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #21255d;
/* rgb */ color: rgb(33, 37, 93);
/* oklch */ color: oklch(29.7% 0.099 275.5);

Tailwind

colors: {
  custom: {
    50: '#635f8b',
    500: '#21255d',
    950: '#000000',
  },
}

SCSS

$custom: #21255d;
$custom-light: #635f8b;
$custom-dark: #000000;

JSON

{
  "hex": "#21255d",
  "rgb": {
    "r": 33,
    "g": 37,
    "b": 93
  },
  "hsl": {
    "h": 236,
    "s": 47.619,
    "l": 24.706
  },
  "oklch": {
    "l": 0.29684,
    "c": 0.09855,
    "h": 275.5
  },
  "luminance": 0.02437
}

Semantic roles & 50–950 ramp

primary

#21255D

secondary

#918C49

accent

#CE51D7

background

#F6F5F8

surface

#EBE9F0

border

#C6C5CB

text

#06040C

muted

#7A797D

Preview Lab

Preview with #21255D

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

Preview Lab → · Contrast checker → · Palette generator →