#21278A#21278A

#21278A is a dark, vivid blue. Relative luminance 0.036; OKLCH L 34.4% C 0.160 H 271.7°. Best body text is #FFFFFF at 12.20:1 contrast (WCAG AA passes).

Color values

HEX	#21278A
RGB	rgb(33, 39, 138)
HSL	hsl(237, 61%, 34%)
HSV	hsv(237, 76%, 54%)
CMYK	cmyk(76.1%, 71.7%, 0%, 45.9%)
CIE-LAB	lab(22.33, 33.18, -55.43)
CIE-LCH	lch(22.33, 64.60, 300.90°)
OKLab	oklab(34.42% 0.0049 -0.1604)
OKLCH	oklch(34.42% 0.16 271.7)
XYZ	xyz(5.9386, 3.6087, 24.4234)
Luminance	0.0361 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21278A #8A8421

analogous

#215B8A #21278A #4F218A

triadic

#21278A #8A2127 #278A21

tetradic

#21278A #8A215B #8A8421 #218A4F

square

#21278A #8A215B #8A8421 #218A4F

split-complementary

#21278A #8A4F21 #5B8A21

monochromatic

#090B27 #151959 #21278A #2D35BB #5058D5

Accessibility & contrast

On white

12.20

#21278A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.72

#21278A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21278A

12.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21278A	#FFFFFF	#000000	##FFFFFF
##21278A	1.00	12.20	1.72	12.20
#FFFFFF	12.20	1.00	21.00	1.00
#000000	1.72	21.00	1.00	21.00
##FFFFFF	12.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A8D

Deuteranopia (green-blind)

#003088

Tritanopia (blue-blind)

#004255

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #21278a;
/* rgb */ color: rgb(33, 39, 138);
/* oklch */ color: oklch(34.4% 0.160 271.7);

Tailwind

colors: {
  custom: {
    50: '#6e62ad',
    500: '#21278a',
    950: '#000000',
  },
}

SCSS

$custom: #21278a;
$custom-light: #6e62ad;
$custom-dark: #000000;

JSON

{
  "hex": "#21278a",
  "rgb": {
    "r": 33,
    "g": 39,
    "b": 138
  },
  "hsl": {
    "h": 236.571,
    "s": 61.404,
    "l": 33.529
  },
  "oklch": {
    "l": 0.34418,
    "c": 0.16045,
    "h": 271.7
  },
  "luminance": 0.03609
}

Semantic roles & 50–950 ramp

primary

#21278A

secondary

#B9B24E

accent

#DB43E5

background

#F7F5FA

surface

#EDEAF4

border

#C8C6CE

text

#080510

muted

#7B797F

Preview Lab

Preview with #21278A

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

Preview Lab → · Contrast checker → · Palette generator →