#21379A#21379A

#21379A is a dark, vivid blue. Relative luminance 0.054; OKLCH L 38.9% C 0.163 H 267.9°. Best body text is #FFFFFF at 10.11:1 contrast (WCAG AA passes).

Color values

HEX	#21379A
RGB	rgb(33, 55, 154)
HSL	hsl(229, 65%, 37%)
HSV	hsv(229, 79%, 60%)
CMYK	cmyk(78.6%, 64.3%, 0%, 39.6%)
CIE-LAB	lab(27.81, 28.66, -56.31)
CIE-LCH	lch(27.81, 63.18, 296.97°)
OKLab	oklab(38.88% -0.0058 -0.1629)
OKLCH	oklch(38.88% 0.163 267.9)
XYZ	xyz(7.8241, 5.3879, 31.1932)
Luminance	0.0539 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21379A #9A8421

analogous

#21749A #21379A #48219A

triadic

#21379A #9A2137 #379A21

tetradic

#21379A #9A2174 #9A8421 #219A48

square

#21379A #9A2174 #9A8421 #219A48

split-complementary

#21379A #9A4821 #749A21

monochromatic

#0B1335 #162568 #21379A #2C49CC #5A71DC

Accessibility & contrast

On white

10.11

#21379A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.08

#21379A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21379A

10.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21379A	#FFFFFF	#000000	##FFFFFF
##21379A	1.00	10.11	2.08	10.11
#FFFFFF	10.11	1.00	21.00	1.00
#000000	2.08	21.00	1.00	21.00
##FFFFFF	10.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00479D

Deuteranopia (green-blind)

#003C98

Tritanopia (blue-blind)

#005163

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #21379a;
/* rgb */ color: rgb(33, 55, 154);
/* oklch */ color: oklch(38.9% 0.163 267.9);

Tailwind

colors: {
  custom: {
    50: '#716db9',
    500: '#21379a',
    950: '#000000',
  },
}

SCSS

$custom: #21379a;
$custom-light: #716db9;
$custom-dark: #000000;

JSON

{
  "hex": "#21379a",
  "rgb": {
    "r": 33,
    "g": 55,
    "b": 154
  },
  "hsl": {
    "h": 229.091,
    "s": 64.706,
    "l": 36.667
  },
  "oklch": {
    "l": 0.38884,
    "c": 0.16297,
    "h": 267.9
  },
  "luminance": 0.05389
}

Semantic roles & 50–950 ramp

primary

#21379A

secondary

#C0AD57

accent

#C940E8

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #21379A

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

Preview Lab → · Contrast checker → · Palette generator →