#372BA3#372BA3

#372BA3 is a dark, vivid blue. Relative luminance 0.052; OKLCH L 39.1% C 0.183 H 278.2°. Best body text is #FFFFFF at 10.31:1 contrast (WCAG AA passes).

Color values

HEX	#372BA3
RGB	rgb(55, 43, 163)
HSL	hsl(246, 58%, 40%)
HSV	hsv(246, 74%, 64%)
CMYK	cmyk(66.3%, 73.6%, 0%, 36.1%)
CIE-LAB	lab(27.25, 41.87, -62.65)
CIE-LCH	lch(27.25, 75.36, 303.76°)
OKLab	oklab(39.1% 0.0262 -0.1809)
OKLCH	oklch(39.1% 0.183 278.2)
XYZ	xyz(9.0482, 5.1836, 35.1669)
Luminance	0.0518 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#372BA3 #97A32B

analogous

#2B5BA3 #372BA3 #732BA3

triadic

#372BA3 #A3372B #2BA337

tetradic

#372BA3 #A32B5B #97A32B #2BA373

square

#372BA3 #A32B5B #97A32B #2BA373

split-complementary

#372BA3 #A3732B #5BA32B

monochromatic

#161142 #271E73 #372BA3 #4D3FCC #7A6FD9

Accessibility & contrast

On white

10.31

#372BA3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#372BA3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #372BA3

10.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##372BA3	#FFFFFF	#000000	##FFFFFF
##372BA3	1.00	10.31	2.04	10.31
#FFFFFF	10.31	1.00	21.00	1.00
#000000	2.04	21.00	1.00	21.00
##FFFFFF	10.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0045A7

Deuteranopia (green-blind)

#003BA1

Tritanopia (blue-blind)

#004D64

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #372ba3;
/* rgb */ color: rgb(55, 43, 163);
/* oklch */ color: oklch(39.1% 0.183 278.2);

Tailwind

colors: {
  custom: {
    50: '#7d66bf',
    500: '#372ba3',
    950: '#000000',
  },
}

SCSS

$custom: #372ba3;
$custom-light: #7d66bf;
$custom-dark: #000000;

JSON

{
  "hex": "#372ba3",
  "rgb": {
    "r": 55,
    "g": 43,
    "b": 163
  },
  "hsl": {
    "h": 246,
    "s": 58.252,
    "l": 40.392
  },
  "oklch": {
    "l": 0.39095,
    "c": 0.18278,
    "h": 278.2
  },
  "luminance": 0.05184
}

Semantic roles & 50–950 ramp

primary

#372BA3

secondary

#B8C06A

accent

#E146D2

background

#F8F6FB

surface

#EFEBF7

border

#CAC6D0

text

#0B0612

muted

#7C7A81

Preview Lab

Preview with #372BA3

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

Preview Lab → · Contrast checker → · Palette generator →