#21257F#21257F

#21257F is a dark, vivid blue. Relative luminance 0.032; OKLCH L 32.9% C 0.148 H 272.9°. Best body text is #FFFFFF at 12.84:1 contrast (WCAG AA passes).

Color values

HEX	#21257F
RGB	rgb(33, 37, 127)
HSL	hsl(237, 59%, 31%)
HSV	hsv(237, 74%, 50%)
CMYK	cmyk(74%, 70.9%, 0%, 50.2%)
CIE-LAB	lab(20.74, 30.43, -51.12)
CIE-LCH	lch(20.74, 59.50, 300.76°)
OKLab	oklab(32.93% 0.0075 -0.1478)
OKLCH	oklch(32.93% 0.148 272.9)
XYZ	xyz(5.1182, 3.1783, 20.4183)
Luminance	0.0318 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21257F #7F7B21

analogous

#21547F #21257F #4C217F

triadic

#21257F #7F2125 #257F21

tetradic

#21257F #7F2154 #7F7B21 #217F4C

square

#21257F #7F2154 #7F7B21 #217F4C

split-complementary

#21257F #7F4C21 #547F21

monochromatic

#08091E #14174E #21257F #2E33B0 #4A50D0

Accessibility & contrast

On white

12.84

#21257F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.64

#21257F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21257F

12.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21257F	#FFFFFF	#000000	##FFFFFF
##21257F	1.00	12.84	1.64	12.84
#FFFFFF	12.84	1.00	21.00	1.00
#000000	1.64	21.00	1.00	21.00
##FFFFFF	12.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003682

Deuteranopia (green-blind)

#002D7D

Tritanopia (blue-blind)

#003D4F

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #21257f;
/* rgb */ color: rgb(33, 37, 127);
/* oklch */ color: oklch(32.9% 0.148 272.9);

Tailwind

colors: {
  custom: {
    50: '#6c60a5',
    500: '#21257f',
    950: '#000000',
  },
}

SCSS

$custom: #21257f;
$custom-light: #6c60a5;
$custom-dark: #000000;

JSON

{
  "hex": "#21257f",
  "rgb": {
    "r": 33,
    "g": 37,
    "b": 127
  },
  "hsl": {
    "h": 237.447,
    "s": 58.75,
    "l": 31.373
  },
  "oklch": {
    "l": 0.32934,
    "c": 0.148,
    "h": 272.9
  },
  "luminance": 0.03179
}

Semantic roles & 50–950 ramp

primary

#21257F

secondary

#B2AD4A

accent

#DB46E2

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#08050F

muted

#7A797F

Preview Lab

Preview with #21257F

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

Preview Lab → · Contrast checker → · Palette generator →