#21279F#21279F

#21279F is a dark, vivid blue. Relative luminance 0.043; OKLCH L 36.7% C 0.187 H 270.5°. Best body text is #FFFFFF at 11.32:1 contrast (WCAG AA passes).

Color values

HEX	#21279F
RGB	rgb(33, 39, 159)
HSL	hsl(237, 66%, 38%)
HSV	hsv(237, 79%, 62%)
CMYK	cmyk(79.2%, 75.5%, 0%, 37.6%)
CIE-LAB	lab(24.57, 40.64, -64.70)
CIE-LCH	lch(24.57, 76.40, 302.13°)
OKLab	oklab(36.68% 0.0017 -0.1874)
OKLCH	oklch(36.68% 0.187 270.5)
XYZ	xyz(7.6086, 4.2767, 33.2187)
Luminance	0.0428 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21279F #9F9921

analogous

#21669F #21279F #5A219F

triadic

#21279F #9F2127 #279F21

tetradic

#21279F #9F2166 #9F9921 #219F5A

square

#21279F #9F2166 #9F9921 #219F5A

split-complementary

#21279F #9F5A21 #669F21

monochromatic

#0C0E3A #161B6C #21279F #2C33D2 #5D63DD

Accessibility & contrast

On white

11.32

#21279F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#21279F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21279F

11.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21279F	#FFFFFF	#000000	##FFFFFF
##21279F	1.00	11.32	1.86	11.32
#FFFFFF	11.32	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0041A2

Deuteranopia (green-blind)

#00349D

Tritanopia (blue-blind)

#004A61

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #21279f;
/* rgb */ color: rgb(33, 39, 159);
/* oklch */ color: oklch(36.7% 0.187 270.5);

Tailwind

colors: {
  custom: {
    50: '#7462bd',
    500: '#21279f',
    950: '#000000',
  },
}

SCSS

$custom: #21279f;
$custom-light: #7462bd;
$custom-dark: #000000;

JSON

{
  "hex": "#21279f",
  "rgb": {
    "r": 33,
    "g": 39,
    "b": 159
  },
  "hsl": {
    "h": 237.143,
    "s": 65.625,
    "l": 37.647
  },
  "oklch": {
    "l": 0.36682,
    "c": 0.18738,
    "h": 270.5
  },
  "luminance": 0.04278
}

Semantic roles & 50–950 ramp

primary

#21279F

secondary

#C2BD5A

accent

#E13FE9

background

#F7F5FB

surface

#EEEAF7

border

#C9C6D0

text

#0A0512

muted

#7C7981

Preview Lab

Preview with #21279F

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

Preview Lab → · Contrast checker → · Palette generator →