#37378C#37378C

#37378C is a dark, vivid blue. Relative luminance 0.054; OKLCH L 39.0% C 0.138 H 277.9°. Best body text is #FFFFFF at 10.06:1 contrast (WCAG AA passes).

Color values

HEX	#37378C
RGB	rgb(55, 55, 140)
HSL	hsl(240, 44%, 38%)
HSV	hsv(240, 61%, 55%)
CMYK	cmyk(60.7%, 60.7%, 0%, 45.1%)
CIE-LAB	lab(27.95, 26.68, -47.43)
CIE-LCH	lch(27.95, 54.42, 299.36°)
OKLab	oklab(38.96% 0.0189 -0.1363)
OKLCH	oklch(38.96% 0.138 277.9)
XYZ	xyz(7.6738, 5.4375, 25.4510)
Luminance	0.0544 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37378C #8C8C37

analogous

#37618C #37378C #61378C

triadic

#37378C #8C3737 #378C37

tetradic

#37378C #8C3761 #8C8C37 #378C61

square

#37378C #8C3761 #8C8C37 #378C61

split-complementary

#37378C #8C6137 #618C37

monochromatic

#141434 #262660 #37378C #4949B7 #7575C9

Accessibility & contrast

On white

10.06

#37378C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#37378C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37378C

10.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37378C	#FFFFFF	#000000	##FFFFFF
##37378C	1.00	10.06	2.09	10.06
#FFFFFF	10.06	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00468F

Deuteranopia (green-blind)

#003E8A

Tritanopia (blue-blind)

#004B5C

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #37378c;
/* rgb */ color: rgb(55, 55, 140);
/* oklch */ color: oklch(39.0% 0.138 277.9);

Tailwind

colors: {
  custom: {
    50: '#776eae',
    500: '#37378c',
    950: '#000000',
  },
}

SCSS

$custom: #37378c;
$custom-light: #776eae;
$custom-dark: #000000;

JSON

{
  "hex": "#37378c",
  "rgb": {
    "r": 55,
    "g": 55,
    "b": 140
  },
  "hsl": {
    "h": 240,
    "s": 43.59,
    "l": 38.235
  },
  "oklch": {
    "l": 0.38965,
    "c": 0.13757,
    "h": 277.9
  },
  "luminance": 0.05438
}

Semantic roles & 50–950 ramp

primary

#37378C

secondary

#B1B16D

accent

#D354D3

background

#F7F6FA

surface

#EEEBF4

border

#C9C6CE

text

#090710

muted

#7B7A7F

Preview Lab

Preview with #37378C

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

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