#21279D#21279D

#21279D is a dark, vivid blue. Relative luminance 0.042; OKLCH L 36.5% C 0.185 H 270.6°. Best body text is #FFFFFF at 11.40:1 contrast (WCAG AA passes).

Color values

HEX	#21279D
RGB	rgb(33, 39, 157)
HSL	hsl(237, 65%, 37%)
HSV	hsv(237, 79%, 62%)
CMYK	cmyk(79%, 75.2%, 0%, 38.4%)
CIE-LAB	lab(24.35, 39.94, -63.84)
CIE-LCH	lch(24.35, 75.30, 302.03°)
OKLab	oklab(36.46% 0.0021 -0.1849)
OKLCH	oklch(36.46% 0.185 270.6)
XYZ	xyz(7.4365, 4.2079, 32.3120)
Luminance	0.0421 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21279D #9D9721

analogous

#21659D #21279D #59219D

triadic

#21279D #9D2127 #279D21

tetradic

#21279D #9D2165 #9D9721 #219D59

square

#21279D #9D2165 #9D9721 #219D59

split-complementary

#21279D #9D5921 #659D21

monochromatic

#0C0E38 #161A6A #21279D #2C34D0 #5C62DD

Accessibility & contrast

On white

11.40

#21279D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#21279D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21279D

11.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21279D	#FFFFFF	#000000	##FFFFFF
##21279D	1.00	11.40	1.84	11.40
#FFFFFF	11.40	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0040A0

Deuteranopia (green-blind)

#00349B

Tritanopia (blue-blind)

#004960

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #21279d;
/* rgb */ color: rgb(33, 39, 157);
/* oklch */ color: oklch(36.5% 0.185 270.6);

Tailwind

colors: {
  custom: {
    50: '#7362bb',
    500: '#21279d',
    950: '#000000',
  },
}

SCSS

$custom: #21279d;
$custom-light: #7362bb;
$custom-dark: #000000;

JSON

{
  "hex": "#21279d",
  "rgb": {
    "r": 33,
    "g": 39,
    "b": 157
  },
  "hsl": {
    "h": 237.097,
    "s": 65.263,
    "l": 37.255
  },
  "oklch": {
    "l": 0.36461,
    "c": 0.18488,
    "h": 270.6
  },
  "luminance": 0.04209
}

Semantic roles & 50–950 ramp

primary

#21279D

secondary

#C1BC59

accent

#E040E8

background

#F7F5FB

surface

#EEEAF6

border

#C9C6D0

text

#0A0512

muted

#7C7981

Preview Lab

Preview with #21279D

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

Preview Lab → · Contrast checker → · Palette generator →