#372BA4#372BA4

#372BA4 is a dark, vivid blue. Relative luminance 0.052; OKLCH L 39.2% C 0.184 H 278.1°. Best body text is #FFFFFF at 10.27:1 contrast (WCAG AA passes).

Color values

HEX	#372BA4
RGB	rgb(55, 43, 164)
HSL	hsl(246, 58%, 41%)
HSV	hsv(246, 74%, 64%)
CMYK	cmyk(66.5%, 73.8%, 0%, 35.7%)
CIE-LAB	lab(27.35, 42.20, -63.09)
CIE-LCH	lch(27.35, 75.90, 303.78°)
OKLab	oklab(39.2% 0.026 -0.1822)
OKLCH	oklch(39.2% 0.184 278.1)
XYZ	xyz(9.1381, 5.2195, 35.6407)
Luminance	0.0522 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#372BA4 #98A42B

analogous

#2B5CA4 #372BA4 #732BA4

triadic

#372BA4 #A4372B #2BA437

tetradic

#372BA4 #A42B5C #98A42B #2BA473

square

#372BA4 #A42B5C #98A42B #2BA473

split-complementary

#372BA4 #A4732B #5CA42B

monochromatic

#161243 #271E74 #372BA4 #4D3FCD #7A70D9

Accessibility & contrast

On white

10.27

#372BA4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#372BA4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #372BA4

10.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##372BA4	#FFFFFF	#000000	##FFFFFF
##372BA4	1.00	10.27	2.04	10.27
#FFFFFF	10.27	1.00	21.00	1.00
#000000	2.04	21.00	1.00	21.00
##FFFFFF	10.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0045A8

Deuteranopia (green-blind)

#003CA2

Tritanopia (blue-blind)

#004D65

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #372ba4;
/* rgb */ color: rgb(55, 43, 164);
/* oklch */ color: oklch(39.2% 0.184 278.1);

Tailwind

colors: {
  custom: {
    50: '#7d66c0',
    500: '#372ba4',
    950: '#000000',
  },
}

SCSS

$custom: #372ba4;
$custom-light: #7d66c0;
$custom-dark: #000000;

JSON

{
  "hex": "#372ba4",
  "rgb": {
    "r": 55,
    "g": 43,
    "b": 164
  },
  "hsl": {
    "h": 245.95,
    "s": 58.454,
    "l": 40.588
  },
  "oklch": {
    "l": 0.39196,
    "c": 0.18402,
    "h": 278.1
  },
  "luminance": 0.0522
}

Semantic roles & 50–950 ramp

primary

#372BA4

secondary

#B8C16A

accent

#E246D2

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0612

muted

#7C7A81

Preview Lab

Preview with #372BA4

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

Preview Lab → · Contrast checker → · Palette generator →