#372DA4#372DA4

#372DA4 is a dark, vivid blue. Relative luminance 0.054; OKLCH L 39.5% C 0.182 H 277.8°. Best body text is #FFFFFF at 10.13:1 contrast (WCAG AA passes).

Color values

HEX	#372DA4
RGB	rgb(55, 45, 164)
HSL	hsl(245, 57%, 41%)
HSV	hsv(245, 73%, 64%)
CMYK	cmyk(66.5%, 72.6%, 0%, 35.7%)
CIE-LAB	lab(27.76, 41.06, -62.42)
CIE-LCH	lch(27.76, 74.71, 303.34°)
OKLab	oklab(39.49% 0.0246 -0.1802)
OKLCH	oklch(39.49% 0.182 277.8)
XYZ	xyz(9.2126, 5.3686, 35.6655)
Luminance	0.0537 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#372DA4 #9AA42D

analogous

#2D5EA4 #372DA4 #722DA4

triadic

#372DA4 #A4372D #2DA437

tetradic

#372DA4 #A42D5E #9AA42D #2DA472

square

#372DA4 #A42D5E #9AA42D #2DA472

split-complementary

#372DA4 #A4722D #5EA42D

monochromatic

#171344 #272074 #372DA4 #4E43CB #7B73D9

Accessibility & contrast

On white

10.13

#372DA4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.07

#372DA4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #372DA4

10.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##372DA4	#FFFFFF	#000000	##FFFFFF
##372DA4	1.00	10.13	2.07	10.13
#FFFFFF	10.13	1.00	21.00	1.00
#000000	2.07	21.00	1.00	21.00
##FFFFFF	10.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0046A8

Deuteranopia (green-blind)

#003DA2

Tritanopia (blue-blind)

#004E65

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #372da4;
/* rgb */ color: rgb(55, 45, 164);
/* oklch */ color: oklch(39.5% 0.182 277.8);

Tailwind

colors: {
  custom: {
    50: '#7d68c0',
    500: '#372da4',
    950: '#000000',
  },
}

SCSS

$custom: #372da4;
$custom-light: #7d68c0;
$custom-dark: #000000;

JSON

{
  "hex": "#372da4",
  "rgb": {
    "r": 55,
    "g": 45,
    "b": 164
  },
  "hsl": {
    "h": 245.042,
    "s": 56.938,
    "l": 40.98
  },
  "oklch": {
    "l": 0.39486,
    "c": 0.18191,
    "h": 277.8
  },
  "luminance": 0.05369
}

Semantic roles & 50–950 ramp

primary

#372DA4

secondary

#B9C06D

accent

#E048D3

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0612

muted

#7C7A81

Preview Lab

Preview with #372DA4

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

Preview Lab → · Contrast checker → · Palette generator →