#372BA1#372BA1

#372BA1 is a dark, vivid blue. Relative luminance 0.051; OKLCH L 38.9% C 0.180 H 278.5°. Best body text is #FFFFFF at 10.38:1 contrast (WCAG AA passes).

Color values

HEX	#372BA1
RGB	rgb(55, 43, 161)
HSL	hsl(246, 58%, 40%)
HSV	hsv(246, 73%, 63%)
CMYK	cmyk(65.8%, 73.3%, 0%, 36.9%)
CIE-LAB	lab(27.05, 41.22, -61.76)
CIE-LCH	lch(27.05, 74.26, 303.72°)
OKLab	oklab(38.89% 0.0266 -0.1783)
OKLCH	oklch(38.89% 0.18 278.5)
XYZ	xyz(8.8704, 5.1125, 34.2307)
Luminance	0.0511 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#372BA1 #95A12B

analogous

#2B5AA1 #372BA1 #722BA1

triadic

#372BA1 #A1372B #2BA137

tetradic

#372BA1 #A12B5A #95A12B #2BA172

square

#372BA1 #A12B5A #95A12B #2BA172

split-complementary

#372BA1 #A1722B #5AA12B

monochromatic

#161140 #271E71 #372BA1 #4C3ECB #796ED8

Accessibility & contrast

On white

10.38

#372BA1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.02

#372BA1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #372BA1

10.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##372BA1	#FFFFFF	#000000	##FFFFFF
##372BA1	1.00	10.38	2.02	10.38
#FFFFFF	10.38	1.00	21.00	1.00
#000000	2.02	21.00	1.00	21.00
##FFFFFF	10.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0045A4

Deuteranopia (green-blind)

#003B9F

Tritanopia (blue-blind)

#004C63

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #372ba1;
/* rgb */ color: rgb(55, 43, 161);
/* oklch */ color: oklch(38.9% 0.180 278.5);

Tailwind

colors: {
  custom: {
    50: '#7c66be',
    500: '#372ba1',
    950: '#000000',
  },
}

SCSS

$custom: #372ba1;
$custom-light: #7c66be;
$custom-dark: #000000;

JSON

{
  "hex": "#372ba1",
  "rgb": {
    "r": 55,
    "g": 43,
    "b": 161
  },
  "hsl": {
    "h": 246.102,
    "s": 57.843,
    "l": 40
  },
  "oklch": {
    "l": 0.38894,
    "c": 0.18028,
    "h": 278.5
  },
  "luminance": 0.05113
}

Semantic roles & 50–950 ramp

primary

#372BA1

secondary

#B6BF69

accent

#E147D1

background

#F8F6FB

surface

#EFEBF7

border

#CAC6D0

text

#0B0612

muted

#7C7A81

Preview Lab

Preview with #372BA1

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

Preview Lab → · Contrast checker → · Palette generator →