#372CA1#372CA1

#372CA1 is a dark, vivid blue. Relative luminance 0.052; OKLCH L 39.0% C 0.179 H 278.3°. Best body text is #FFFFFF at 10.31:1 contrast (WCAG AA passes).

Color values

HEX	#372CA1
RGB	rgb(55, 44, 161)
HSL	hsl(246, 57%, 40%)
HSV	hsv(246, 73%, 63%)
CMYK	cmyk(65.8%, 72.7%, 0%, 36.9%)
CIE-LAB	lab(27.26, 40.65, -61.43)
CIE-LCH	lch(27.26, 73.66, 303.50°)
OKLab	oklab(39.04% 0.0259 -0.1773)
OKLCH	oklch(39.04% 0.179 278.3)
XYZ	xyz(8.9072, 5.1861, 34.2429)
Luminance	0.0519 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#372CA1 #96A12C

analogous

#2C5BA1 #372CA1 #712CA1

triadic

#372CA1 #A1372C #2CA137

tetradic

#372CA1 #A12C5B #96A12C #2CA171

square

#372CA1 #A12C5B #96A12C #2CA171

split-complementary

#372CA1 #A1712C #5BA12C

monochromatic

#161241 #271F71 #372CA1 #4D40CB #7970D8

Accessibility & contrast

On white

10.31

#372CA1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#372CA1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #372CA1

10.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##372CA1	#FFFFFF	#000000	##FFFFFF
##372CA1	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)

#0045A4

Deuteranopia (green-blind)

#003C9F

Tritanopia (blue-blind)

#004C63

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #372ca1;
/* rgb */ color: rgb(55, 44, 161);
/* oklch */ color: oklch(39.0% 0.179 278.3);

Tailwind

colors: {
  custom: {
    50: '#7c67be',
    500: '#372ca1',
    950: '#000000',
  },
}

SCSS

$custom: #372ca1;
$custom-light: #7c67be;
$custom-dark: #000000;

JSON

{
  "hex": "#372ca1",
  "rgb": {
    "r": 55,
    "g": 44,
    "b": 161
  },
  "hsl": {
    "h": 245.641,
    "s": 57.073,
    "l": 40.196
  },
  "oklch": {
    "l": 0.3904,
    "c": 0.1792,
    "h": 278.3
  },
  "luminance": 0.05187
}

Semantic roles & 50–950 ramp

primary

#372CA1

secondary

#B7BF6A

accent

#E047D2

background

#F8F6FB

surface

#EFEBF7

border

#CAC6D0

text

#0B0612

muted

#7C7A81

Preview Lab

Preview with #372CA1

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

Preview Lab → · Contrast checker → · Palette generator →