#372CA7#372CA7

#372CA7 is a dark, vivid blue. Relative luminance 0.054; OKLCH L 39.6% C 0.187 H 277.6°. Best body text is #FFFFFF at 10.09:1 contrast (WCAG AA passes).

Color values

HEX	#372CA7
RGB	rgb(55, 44, 167)
HSL	hsl(245, 58%, 41%)
HSV	hsv(245, 74%, 65%)
CMYK	cmyk(67.1%, 73.7%, 0%, 34.5%)
CIE-LAB	lab(27.85, 42.60, -64.08)
CIE-LCH	lch(27.85, 76.95, 303.62°)
OKLab	oklab(39.64% 0.0247 -0.1851)
OKLCH	oklch(39.64% 0.187 277.6)
XYZ	xyz(9.4490, 5.4028, 37.0966)
Luminance	0.0540 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#372CA7 #9CA72C

analogous

#2C5FA7 #372CA7 #752CA7

triadic

#372CA7 #A7372C #2CA737

tetradic

#372CA7 #A72C5F #9CA72C #2CA775

square

#372CA7 #A72C5F #9CA72C #2CA775

split-complementary

#372CA7 #A7752C #5FA72C

monochromatic

#171246 #271F77 #372CA7 #4F43CD #7C73DA

Accessibility & contrast

On white

10.09

#372CA7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.08

#372CA7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #372CA7

10.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##372CA7	#FFFFFF	#000000	##FFFFFF
##372CA7	1.00	10.09	2.08	10.09
#FFFFFF	10.09	1.00	21.00	1.00
#000000	2.08	21.00	1.00	21.00
##FFFFFF	10.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0047AB

Deuteranopia (green-blind)

#003DA5

Tritanopia (blue-blind)

#004F67

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #372ca7;
/* rgb */ color: rgb(55, 44, 167);
/* oklch */ color: oklch(39.6% 0.187 277.6);

Tailwind

colors: {
  custom: {
    50: '#7d67c2',
    500: '#372ca7',
    950: '#000000',
  },
}

SCSS

$custom: #372ca7;
$custom-light: #7d67c2;
$custom-dark: #000000;

JSON

{
  "hex": "#372ca7",
  "rgb": {
    "r": 55,
    "g": 44,
    "b": 167
  },
  "hsl": {
    "h": 245.366,
    "s": 58.294,
    "l": 41.373
  },
  "oklch": {
    "l": 0.39642,
    "c": 0.18671,
    "h": 277.6
  },
  "luminance": 0.05404
}

Semantic roles & 50–950 ramp

primary

#372CA7

secondary

#BAC26D

accent

#E246D4

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #372CA7

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

Preview Lab → · Contrast checker → · Palette generator →