#372AA6#372AA6

#372AA6 is a dark, vivid blue. Relative luminance 0.052; OKLCH L 39.3% C 0.188 H 278.0°. Best body text is #FFFFFF at 10.27:1 contrast (WCAG AA passes).

Color values

HEX	#372AA6
RGB	rgb(55, 42, 166)
HSL	hsl(246, 60%, 41%)
HSV	hsv(246, 75%, 65%)
CMYK	cmyk(66.9%, 74.7%, 0%, 34.9%)
CIE-LAB	lab(27.35, 43.40, -64.30)
CIE-LCH	lch(27.35, 77.57, 304.02°)
OKLab	oklab(39.26% 0.0262 -0.1857)
OKLCH	oklch(39.26% 0.188 278)
XYZ	xyz(9.2842, 5.2205, 36.5874)
Luminance	0.0522 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#372AA6 #99A62A

analogous

#2A5BA6 #372AA6 #752AA6

triadic

#372AA6 #A6372A #2AA637

tetradic

#372AA6 #A62A5B #99A62A #2AA675

square

#372AA6 #A62A5B #99A62A #2AA675

split-complementary

#372AA6 #A6752A #5BA62A

monochromatic

#171144 #271E75 #372AA6 #4E3FCE #7B70DB

Accessibility & contrast

On white

10.27

#372AA6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#372AA6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #372AA6

10.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##372AA6	#FFFFFF	#000000	##FFFFFF
##372AA6	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)

#0046AA

Deuteranopia (green-blind)

#003BA4

Tritanopia (blue-blind)

#004D66

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #372aa6;
/* rgb */ color: rgb(55, 42, 166);
/* oklch */ color: oklch(39.3% 0.188 278.0);

Tailwind

colors: {
  custom: {
    50: '#7d66c2',
    500: '#372aa6',
    950: '#000000',
  },
}

SCSS

$custom: #372aa6;
$custom-light: #7d66c2;
$custom-dark: #000000;

JSON

{
  "hex": "#372aa6",
  "rgb": {
    "r": 55,
    "g": 42,
    "b": 166
  },
  "hsl": {
    "h": 246.29,
    "s": 59.615,
    "l": 40.784
  },
  "oklch": {
    "l": 0.39258,
    "c": 0.18752,
    "h": 278
  },
  "luminance": 0.05221
}

Semantic roles & 50–950 ramp

primary

#372AA6

secondary

#B9C26A

accent

#E345D2

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0612

muted

#7C7A81

Preview Lab

Preview with #372AA6

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

Preview Lab → · Contrast checker → · Palette generator →