#21257A#21257A

#21257A is a dark, vivid blue. Relative luminance 0.031; OKLCH L 32.4% C 0.141 H 273.3°. Best body text is #FFFFFF at 13.04:1 contrast (WCAG AA passes).

Color values

HEX	#21257A
RGB	rgb(33, 37, 122)
HSL	hsl(237, 57%, 30%)
HSV	hsv(237, 73%, 48%)
CMYK	cmyk(73%, 69.7%, 0%, 52.2%)
CIE-LAB	lab(20.25, 28.58, -48.76)
CIE-LCH	lch(20.25, 56.52, 300.38°)
OKLab	oklab(32.42% 0.0081 -0.1409)
OKLCH	oklch(32.42% 0.141 273.3)
XYZ	xyz(4.8004, 3.0511, 18.7445)
Luminance	0.0305 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21257A #7A7621

analogous

#21527A #21257A #49217A

triadic

#21257A #7A2125 #257A21

tetradic

#21257A #7A2152 #7A7621 #217A49

square

#21257A #7A2152 #7A7621 #217A49

split-complementary

#21257A #7A4921 #527A21

monochromatic

#07081A #14164A #21257A #2E34AA #484ECD

Accessibility & contrast

On white

13.04

#21257A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.61

#21257A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21257A

13.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21257A	#FFFFFF	#000000	##FFFFFF
##21257A	1.00	13.04	1.61	13.04
#FFFFFF	13.04	1.00	21.00	1.00
#000000	1.61	21.00	1.00	21.00
##FFFFFF	13.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00357D

Deuteranopia (green-blind)

#002D78

Tritanopia (blue-blind)

#003C4C

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #21257a;
/* rgb */ color: rgb(33, 37, 122);
/* oklch */ color: oklch(32.4% 0.141 273.3);

Tailwind

colors: {
  custom: {
    50: '#6a60a1',
    500: '#21257a',
    950: '#000000',
  },
}

SCSS

$custom: #21257a;
$custom-light: #6a60a1;
$custom-dark: #000000;

JSON

{
  "hex": "#21257a",
  "rgb": {
    "r": 33,
    "g": 37,
    "b": 122
  },
  "hsl": {
    "h": 237.303,
    "s": 57.419,
    "l": 30.392
  },
  "oklch": {
    "l": 0.32423,
    "c": 0.14114,
    "h": 273.3
  },
  "luminance": 0.03052
}

Semantic roles & 50–950 ramp

primary

#21257A

secondary

#ADA94A

accent

#DA47E1

background

#F6F5FA

surface

#ECE9F3

border

#C7C5CD

text

#07040F

muted

#7A797F

Preview Lab

Preview with #21257A

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

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