#21377E#21377E

#21377E is a dark, vivid blue. Relative luminance 0.046; OKLCH L 36.4% C 0.123 H 267.0°. Best body text is #FFFFFF at 10.98:1 contrast (WCAG AA passes).

Color values

HEX	#21377E
RGB	rgb(33, 55, 126)
HSL	hsl(226, 58%, 31%)
HSV	hsv(226, 74%, 49%)
CMYK	cmyk(73.8%, 56.3%, 0%, 50.6%)
CIE-LAB	lab(25.45, 17.72, -42.82)
CIE-LCH	lch(25.45, 46.34, 292.48°)
OKLab	oklab(36.38% -0.0064 -0.1233)
OKLCH	oklch(36.38% 0.123 267)
XYZ	xyz(5.7580, 4.5615, 20.3116)
Luminance	0.0456 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21377E #7E6821

analogous

#21657E #21377E #39217E

triadic

#21377E #7E2137 #377E21

tetradic

#21377E #7E2165 #7E6821 #217E39

square

#21377E #7E2165 #7E6821 #217E39

split-complementary

#21377E #7E3921 #657E21

monochromatic

#080D1D #14224E #21377E #2E4CAE #4A69D0

Accessibility & contrast

On white

10.98

#21377E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#21377E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21377E

10.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21377E	#FFFFFF	#000000	##FFFFFF
##21377E	1.00	10.98	1.91	10.98
#FFFFFF	10.98	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	10.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004180

Deuteranopia (green-blind)

#00387D

Tritanopia (blue-blind)

#004855

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #21377e;
/* rgb */ color: rgb(33, 55, 126);
/* oklch */ color: oklch(36.4% 0.123 267.0);

Tailwind

colors: {
  custom: {
    50: '#6a6da4',
    500: '#21377e',
    950: '#000000',
  },
}

SCSS

$custom: #21377e;
$custom-light: #6a6da4;
$custom-dark: #000000;

JSON

{
  "hex": "#21377e",
  "rgb": {
    "r": 33,
    "g": 55,
    "b": 126
  },
  "hsl": {
    "h": 225.806,
    "s": 58.491,
    "l": 31.176
  },
  "oklch": {
    "l": 0.36383,
    "c": 0.12343,
    "h": 267
  },
  "luminance": 0.04562
}

Semantic roles & 50–950 ramp

primary

#21377E

secondary

#B1984A

accent

#BD46E2

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #21377E

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

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