#21279A#21279A

#21279A is a dark, vivid blue. Relative luminance 0.041; OKLCH L 36.1% C 0.181 H 270.8°. Best body text is #FFFFFF at 11.53:1 contrast (WCAG AA passes).

Color values

HEX	#21279A
RGB	rgb(33, 39, 154)
HSL	hsl(237, 65%, 37%)
HSV	hsv(237, 79%, 60%)
CMYK	cmyk(78.6%, 74.7%, 0%, 39.6%)
CIE-LAB	lab(24.02, 38.89, -62.54)
CIE-LCH	lch(24.02, 73.65, 301.88°)
OKLab	oklab(36.13% 0.0025 -0.1811)
OKLCH	oklch(36.13% 0.181 270.8)
XYZ	xyz(7.1835, 4.1067, 30.9797)
Luminance	0.0411 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21279A #9A9421

analogous

#21649A #21279A #58219A

triadic

#21279A #9A2127 #279A21

tetradic

#21279A #9A2164 #9A9421 #219A58

square

#21279A #9A2164 #9A9421 #219A58

split-complementary

#21279A #9A5821 #649A21

monochromatic

#0B0D35 #161A68 #21279A #2C34CC #5A60DC

Accessibility & contrast

On white

11.53

#21279A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#21279A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21279A

11.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21279A	#FFFFFF	#000000	##FFFFFF
##21279A	1.00	11.53	1.82	11.53
#FFFFFF	11.53	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F9D

Deuteranopia (green-blind)

#003398

Tritanopia (blue-blind)

#00485E

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #21279a;
/* rgb */ color: rgb(33, 39, 154);
/* oklch */ color: oklch(36.1% 0.181 270.8);

Tailwind

colors: {
  custom: {
    50: '#7262b9',
    500: '#21279a',
    950: '#000000',
  },
}

SCSS

$custom: #21279a;
$custom-light: #7262b9;
$custom-dark: #000000;

JSON

{
  "hex": "#21279a",
  "rgb": {
    "r": 33,
    "g": 39,
    "b": 154
  },
  "hsl": {
    "h": 237.025,
    "s": 64.706,
    "l": 36.667
  },
  "oklch": {
    "l": 0.36133,
    "c": 0.18112,
    "h": 270.8
  },
  "luminance": 0.04107
}

Semantic roles & 50–950 ramp

primary

#21279A

secondary

#C0BB57

accent

#DF40E8

background

#F7F5FB

surface

#EEEAF6

border

#C9C6D0

text

#090512

muted

#7B7981

Preview Lab

Preview with #21279A

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

Preview Lab → · Contrast checker → · Palette generator →