#372DA6#372DA6

#372DA6 is a dark, vivid blue. Relative luminance 0.054; OKLCH L 39.7% C 0.184 H 277.6°. Best body text is #FFFFFF at 10.06:1 contrast (WCAG AA passes).

Color values

HEX	#372DA6
RGB	rgb(55, 45, 166)
HSL	hsl(245, 57%, 41%)
HSV	hsv(245, 73%, 65%)
CMYK	cmyk(66.9%, 72.9%, 0%, 34.9%)
CIE-LAB	lab(27.96, 41.71, -63.30)
CIE-LCH	lch(27.96, 75.81, 303.38°)
OKLab	oklab(39.69% 0.0243 -0.1828)
OKLCH	oklch(39.69% 0.184 277.6)
XYZ	xyz(9.3946, 5.4414, 36.6242)
Luminance	0.0544 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#372DA6 #9CA62D

analogous

#2D60A6 #372DA6 #742DA6

triadic

#372DA6 #A6372D #2DA637

tetradic

#372DA6 #A62D60 #9CA62D #2DA674

square

#372DA6 #A62D60 #9CA62D #2DA674

split-complementary

#372DA6 #A6742D #60A62D

monochromatic

#171346 #272076 #372DA6 #4F44CC #7C74D9

Accessibility & contrast

On white

10.06

#372DA6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#372DA6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #372DA6

10.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##372DA6	#FFFFFF	#000000	##FFFFFF
##372DA6	1.00	10.06	2.09	10.06
#FFFFFF	10.06	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0047AA

Deuteranopia (green-blind)

#003DA4

Tritanopia (blue-blind)

#004F66

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #372da6;
/* rgb */ color: rgb(55, 45, 166);
/* oklch */ color: oklch(39.7% 0.184 277.6);

Tailwind

colors: {
  custom: {
    50: '#7d68c2',
    500: '#372da6',
    950: '#000000',
  },
}

SCSS

$custom: #372da6;
$custom-light: #7d68c2;
$custom-dark: #000000;

JSON

{
  "hex": "#372da6",
  "rgb": {
    "r": 55,
    "g": 45,
    "b": 166
  },
  "hsl": {
    "h": 244.959,
    "s": 57.346,
    "l": 41.373
  },
  "oklch": {
    "l": 0.39686,
    "c": 0.18441,
    "h": 277.6
  },
  "luminance": 0.05442
}

Semantic roles & 50–950 ramp

primary

#372DA6

secondary

#BAC16E

accent

#E147D4

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0612

muted

#7C7A81

Preview Lab

Preview with #372DA6

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

Preview Lab → · Contrast checker → · Palette generator →