#21279B#21279B

#21279B is a dark, vivid blue. Relative luminance 0.041; OKLCH L 36.2% C 0.182 H 270.7°. Best body text is #FFFFFF at 11.49:1 contrast (WCAG AA passes).

Color values

HEX	#21279B
RGB	rgb(33, 39, 155)
HSL	hsl(237, 65%, 37%)
HSV	hsv(237, 79%, 61%)
CMYK	cmyk(78.7%, 74.8%, 0%, 39.2%)
CIE-LAB	lab(24.13, 39.24, -62.98)
CIE-LCH	lch(24.13, 74.20, 301.93°)
OKLab	oklab(36.24% 0.0024 -0.1824)
OKLCH	oklch(36.24% 0.182 270.7)
XYZ	xyz(7.2671, 4.1401, 31.4201)
Luminance	0.0414 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21279B #9B9521

analogous

#21649B #21279B #58219B

triadic

#21279B #9B2127 #279B21

tetradic

#21279B #9B2164 #9B9521 #219B58

square

#21279B #9B2164 #9B9521 #219B58

split-complementary

#21279B #9B5821 #649B21

monochromatic

#0C0E36 #161A69 #21279B #2C34CD #5A61DC

Accessibility & contrast

On white

11.49

#21279B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.83

#21279B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21279B

11.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21279B	#FFFFFF	#000000	##FFFFFF
##21279B	1.00	11.49	1.83	11.49
#FFFFFF	11.49	1.00	21.00	1.00
#000000	1.83	21.00	1.00	21.00
##FFFFFF	11.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F9E

Deuteranopia (green-blind)

#003399

Tritanopia (blue-blind)

#00495F

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #21279b;
/* rgb */ color: rgb(33, 39, 155);
/* oklch */ color: oklch(36.2% 0.182 270.7);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#21279b",
  "rgb": {
    "r": 33,
    "g": 39,
    "b": 155
  },
  "hsl": {
    "h": 237.049,
    "s": 64.894,
    "l": 36.863
  },
  "oklch": {
    "l": 0.36242,
    "c": 0.18238,
    "h": 270.7
  },
  "luminance": 0.04141
}

Semantic roles & 50–950 ramp

primary

#21279B

secondary

#C0BB58

accent

#E040E8

background

#F7F5FB

surface

#EEEAF6

border

#C9C6D0

text

#090512

muted

#7B7981

Preview Lab

Preview with #21279B

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

Preview Lab → · Contrast checker → · Palette generator →