#21377D#21377D

#21377D is a dark, vivid blue. Relative luminance 0.045; OKLCH L 36.3% C 0.122 H 267.0°. Best body text is #FFFFFF at 11.01:1 contrast (WCAG AA passes).

Color values

HEX	#21377D
RGB	rgb(33, 55, 125)
HSL	hsl(226, 58%, 31%)
HSV	hsv(226, 74%, 49%)
CMYK	cmyk(73.6%, 56%, 0%, 51%)
CIE-LAB	lab(25.37, 17.33, -42.31)
CIE-LCH	lch(25.37, 45.72, 292.27°)
OKLab	oklab(36.3% -0.0065 -0.1218)
OKLCH	oklch(36.3% 0.122 267)
XYZ	xyz(5.6938, 4.5358, 19.9735)
Luminance	0.0454 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21377D #7D6721

analogous

#21657D #21377D #39217D

triadic

#21377D #7D2137 #377D21

tetradic

#21377D #7D2165 #7D6721 #217D39

square

#21377D #7D2165 #7D6721 #217D39

split-complementary

#21377D #7D3921 #657D21

monochromatic

#070C1C #14224D #21377D #2E4CAD #4969CF

Accessibility & contrast

On white

11.01

#21377D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#21377D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21377D

11.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21377D	#FFFFFF	#000000	##FFFFFF
##21377D	1.00	11.01	1.91	11.01
#FFFFFF	11.01	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	11.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#02417F

Deuteranopia (green-blind)

#00387C

Tritanopia (blue-blind)

#004854

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #21377d;
/* rgb */ color: rgb(33, 55, 125);
/* oklch */ color: oklch(36.3% 0.122 267.0);

Tailwind

colors: {
  custom: {
    50: '#696da3',
    500: '#21377d',
    950: '#000000',
  },
}

SCSS

$custom: #21377d;
$custom-light: #696da3;
$custom-dark: #000000;

JSON

{
  "hex": "#21377d",
  "rgb": {
    "r": 33,
    "g": 55,
    "b": 125
  },
  "hsl": {
    "h": 225.652,
    "s": 58.228,
    "l": 30.98
  },
  "oklch": {
    "l": 0.363,
    "c": 0.12195,
    "h": 267
  },
  "luminance": 0.04536
}

Semantic roles & 50–950 ramp

primary

#21377D

secondary

#B0974A

accent

#BC46E1

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #21377D

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

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