#21279C#21279C

#21279C is a dark, vivid blue. Relative luminance 0.042; OKLCH L 36.4% C 0.184 H 270.7°. Best body text is #FFFFFF at 11.44:1 contrast (WCAG AA passes).

Color values

HEX	#21279C
RGB	rgb(33, 39, 156)
HSL	hsl(237, 65%, 37%)
HSV	hsv(237, 79%, 61%)
CMYK	cmyk(78.8%, 75%, 0%, 38.8%)
CIE-LAB	lab(24.24, 39.59, -63.41)
CIE-LCH	lch(24.24, 74.75, 301.98°)
OKLab	oklab(36.35% 0.0022 -0.1836)
OKLCH	oklch(36.35% 0.184 270.7)
XYZ	xyz(7.3514, 4.1739, 31.8642)
Luminance	0.0418 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21279C #9C9621

analogous

#21659C #21279C #59219C

triadic

#21279C #9C2127 #279C21

tetradic

#21279C #9C2165 #9C9621 #219C59

square

#21279C #9C2165 #9C9621 #219C59

split-complementary

#21279C #9C5921 #659C21

monochromatic

#0C0E37 #161A69 #21279C #2C34CF #5B61DC

Accessibility & contrast

On white

11.44

#21279C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#21279C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21279C

11.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21279C	#FFFFFF	#000000	##FFFFFF
##21279C	1.00	11.44	1.84	11.44
#FFFFFF	11.44	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00409F

Deuteranopia (green-blind)

#00339A

Tritanopia (blue-blind)

#00495F

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #21279c;
/* rgb */ color: rgb(33, 39, 156);
/* oklch */ color: oklch(36.4% 0.184 270.7);

Tailwind

colors: {
  custom: {
    50: '#7362ba',
    500: '#21279c',
    950: '#000000',
  },
}

SCSS

$custom: #21279c;
$custom-light: #7362ba;
$custom-dark: #000000;

JSON

{
  "hex": "#21279c",
  "rgb": {
    "r": 33,
    "g": 39,
    "b": 156
  },
  "hsl": {
    "h": 237.073,
    "s": 65.079,
    "l": 37.059
  },
  "oklch": {
    "l": 0.36352,
    "c": 0.18363,
    "h": 270.7
  },
  "luminance": 0.04175
}

Semantic roles & 50–950 ramp

primary

#21279C

secondary

#C1BC58

accent

#E040E8

background

#F7F5FB

surface

#EEEAF6

border

#C9C6D0

text

#0A0512

muted

#7C7981

Preview Lab

Preview with #21279C

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

Preview Lab → · Contrast checker → · Palette generator →