#21237A#21237A

#21237A is a dark, vivid blue. Relative luminance 0.029; OKLCH L 32.1% C 0.144 H 273.8°. Best body text is #FFFFFF at 13.24:1 contrast (WCAG AA passes).

Color values

HEX	#21237A
RGB	rgb(33, 35, 122)
HSL	hsl(239, 57%, 30%)
HSV	hsv(239, 73%, 48%)
CMYK	cmyk(73%, 71.3%, 0%, 52.2%)
CIE-LAB	lab(19.76, 29.90, -49.56)
CIE-LCH	lch(19.76, 57.88, 301.10°)
OKLab	oklab(32.07% 0.0095 -0.1432)
OKLCH	oklch(32.07% 0.144 273.8)
XYZ	xyz(4.7399, 2.9301, 18.7243)
Luminance	0.0293 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21237A #7A7821

analogous

#214F7A #21237A #4C217A

triadic

#21237A #7A2123 #237A21

tetradic

#21237A #7A214F #7A7821 #217A4C

square

#21237A #7A214F #7A7821 #217A4C

split-complementary

#21237A #7A4C21 #4F7A21

monochromatic

#07071A #14154A #21237A #2E31AA #484BCD

Accessibility & contrast

On white

13.24

#21237A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#21237A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21237A

13.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21237A	#FFFFFF	#000000	##FFFFFF
##21237A	1.00	13.24	1.59	13.24
#FFFFFF	13.24	1.00	21.00	1.00
#000000	1.59	21.00	1.00	21.00
##FFFFFF	13.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00347D

Deuteranopia (green-blind)

#002C78

Tritanopia (blue-blind)

#003B4B

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #21237a;
/* rgb */ color: rgb(33, 35, 122);
/* oklch */ color: oklch(32.1% 0.144 273.8);

Tailwind

colors: {
  custom: {
    50: '#6a5ea1',
    500: '#21237a',
    950: '#000000',
  },
}

SCSS

$custom: #21237a;
$custom-light: #6a5ea1;
$custom-dark: #000000;

JSON

{
  "hex": "#21237a",
  "rgb": {
    "r": 33,
    "g": 35,
    "b": 122
  },
  "hsl": {
    "h": 238.652,
    "s": 57.419,
    "l": 30.392
  },
  "oklch": {
    "l": 0.32071,
    "c": 0.14356,
    "h": 273.8
  },
  "luminance": 0.02931
}

Semantic roles & 50–950 ramp

primary

#21237A

secondary

#ADAB4A

accent

#DD47E1

background

#F6F5FA

surface

#ECE9F3

border

#C7C5CD

text

#07040F

muted

#7A797F

Preview Lab

Preview with #21237A

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

Preview Lab → · Contrast checker → · Palette generator →