#21278E#21278E

#21278E is a dark, vivid blue. Relative luminance 0.037; OKLCH L 34.8% C 0.166 H 271.5°. Best body text is #FFFFFF at 12.03:1 contrast (WCAG AA passes).

Color values

HEX	#21278E
RGB	rgb(33, 39, 142)
HSL	hsl(237, 62%, 34%)
HSV	hsv(237, 77%, 56%)
CMYK	cmyk(76.8%, 72.5%, 0%, 44.3%)
CIE-LAB	lab(22.75, 34.63, -57.24)
CIE-LCH	lch(22.75, 66.90, 301.17°)
OKLab	oklab(34.84% 0.0043 -0.1657)
OKLCH	oklch(34.84% 0.166 271.5)
XYZ	xyz(6.2335, 3.7267, 25.9767)
Luminance	0.0373 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21278E #8E8821

analogous

#215E8E #21278E #52218E

triadic

#21278E #8E2127 #278E21

tetradic

#21278E #8E215E #8E8821 #218E52

square

#21278E #8E215E #8E8821 #218E52

split-complementary

#21278E #8E5221 #5E8E21

monochromatic

#0A0C2B #15195C #21278E #2D35C0 #525AD7

Accessibility & contrast

On white

12.03

#21278E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#21278E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21278E

12.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21278E	#FFFFFF	#000000	##FFFFFF
##21278E	1.00	12.03	1.75	12.03
#FFFFFF	12.03	1.00	21.00	1.00
#000000	1.75	21.00	1.00	21.00
##FFFFFF	12.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C91

Deuteranopia (green-blind)

#00318C

Tritanopia (blue-blind)

#004457

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #21278e;
/* rgb */ color: rgb(33, 39, 142);
/* oklch */ color: oklch(34.8% 0.166 271.5);

Tailwind

colors: {
  custom: {
    50: '#6f62b0',
    500: '#21278e',
    950: '#000000',
  },
}

SCSS

$custom: #21278e;
$custom-light: #6f62b0;
$custom-dark: #000000;

JSON

{
  "hex": "#21278e",
  "rgb": {
    "r": 33,
    "g": 39,
    "b": 142
  },
  "hsl": {
    "h": 236.697,
    "s": 62.286,
    "l": 34.314
  },
  "oklch": {
    "l": 0.3484,
    "c": 0.16572,
    "h": 271.5
  },
  "luminance": 0.03727
}

Semantic roles & 50–950 ramp

primary

#21278E

secondary

#BAB550

accent

#DC42E5

background

#F7F5FB

surface

#EDEAF6

border

#C8C6D0

text

#090511

muted

#7B7980

Preview Lab

Preview with #21278E

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

Preview Lab → · Contrast checker → · Palette generator →