#373A90#373A90

#373A90 is a dark, vivid blue. Relative luminance 0.059; OKLCH L 39.9% C 0.139 H 276.5°. Best body text is #FFFFFF at 9.68:1 contrast (WCAG AA passes).

Color values

HEX	#373A90
RGB	rgb(55, 58, 144)
HSL	hsl(238, 45%, 39%)
HSV	hsv(238, 62%, 56%)
CMYK	cmyk(61.8%, 59.7%, 0%, 43.5%)
CIE-LAB	lab(29.03, 26.11, -48.13)
CIE-LCH	lch(29.03, 54.76, 298.48°)
OKLab	oklab(39.87% 0.0159 -0.1383)
OKLCH	oklch(39.87% 0.139 276.5)
XYZ	xyz(8.1210, 5.8513, 27.0816)
Luminance	0.0585 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#373A90 #908D37

analogous

#376790 #373A90 #613790

triadic

#373A90 #90373A #3A9037

tetradic

#373A90 #903767 #908D37 #379061

square

#373A90 #903767 #908D37 #379061

split-complementary

#373A90 #906137 #679037

monochromatic

#151637 #262864 #373A90 #4A4EBA #7779CB

Accessibility & contrast

On white

9.68

#373A90 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.17

#373A90 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #373A90

9.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##373A90	#FFFFFF	#000000	##FFFFFF
##373A90	1.00	9.68	2.17	9.68
#FFFFFF	9.68	1.00	21.00	1.00
#000000	2.17	21.00	1.00	21.00
##FFFFFF	9.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004893

Deuteranopia (green-blind)

#00418E

Tritanopia (blue-blind)

#004F5F

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #373a90;
/* rgb */ color: rgb(55, 58, 144);
/* oklch */ color: oklch(39.9% 0.139 276.5);

Tailwind

colors: {
  custom: {
    50: '#7770b1',
    500: '#373a90',
    950: '#000000',
  },
}

SCSS

$custom: #373a90;
$custom-light: #7770b1;
$custom-dark: #000000;

JSON

{
  "hex": "#373a90",
  "rgb": {
    "r": 55,
    "g": 58,
    "b": 144
  },
  "hsl": {
    "h": 237.978,
    "s": 44.724,
    "l": 39.02
  },
  "oklch": {
    "l": 0.39869,
    "c": 0.13921,
    "h": 276.5
  },
  "luminance": 0.05852
}

Semantic roles & 50–950 ramp

primary

#373A90

secondary

#B4B16F

accent

#D053D4

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #373A90

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

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