#21376E#21376E

#21376E is a dark, moderate blue. Relative luminance 0.042; OKLCH L 35.1% C 0.099 H 265.2°. Best body text is #FFFFFF at 11.44:1 contrast (WCAG AA passes).

Color values

HEX	#21376E
RGB	rgb(33, 55, 110)
HSL	hsl(223, 54%, 28%)
HSV	hsv(223, 70%, 43%)
CMYK	cmyk(70%, 50%, 0%, 56.9%)
CIE-LAB	lab(24.26, 11.36, -34.57)
CIE-LCH	lch(24.26, 36.39, 288.20°)
OKLab	oklab(35.1% -0.0082 -0.099)
OKLCH	oklch(35.1% 0.099 265.2)
XYZ	xyz(4.8069, 4.1810, 15.3025)
Luminance	0.0418 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21376E #6E5821

analogous

#215D6E #21376E #31216E

triadic

#21376E #6E2137 #376E21

tetradic

#21376E #6E215D #6E5821 #216E31

square

#21376E #6E215D #6E5821 #216E31

split-complementary

#21376E #6E3121 #5D6E21

monochromatic

#070C18 #131F3F #21376E #2F4F9D #4368C7

Accessibility & contrast

On white

11.44

#21376E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#21376E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21376E

11.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21376E	#FFFFFF	#000000	##FFFFFF
##21376E	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)

#1A3D70

Deuteranopia (green-blind)

#0A366D

Tritanopia (blue-blind)

#00444D

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #21376e;
/* rgb */ color: rgb(33, 55, 110);
/* oklch */ color: oklch(35.1% 0.099 265.2);

Tailwind

colors: {
  custom: {
    50: '#666d98',
    500: '#21376e',
    950: '#000000',
  },
}

SCSS

$custom: #21376e;
$custom-light: #666d98;
$custom-dark: #000000;

JSON

{
  "hex": "#21376e",
  "rgb": {
    "r": 33,
    "g": 55,
    "b": 110
  },
  "hsl": {
    "h": 222.857,
    "s": 53.846,
    "l": 28.039
  },
  "oklch": {
    "l": 0.35105,
    "c": 0.09933,
    "h": 265.2
  },
  "luminance": 0.04181
}

Semantic roles & 50–950 ramp

primary

#21376E

secondary

#A28849

accent

#B34BDD

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06070D

muted

#7A7A7E

Preview Lab

Preview with #21376E

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

Preview Lab → · Contrast checker → · Palette generator →