#372EA8#372EA8

#372EA8 is a dark, vivid blue. Relative luminance 0.056; OKLCH L 40.0% C 0.186 H 277.2°. Best body text is #FFFFFF at 9.91:1 contrast (WCAG AA passes).

Color values

HEX	#372EA8
RGB	rgb(55, 46, 168)
HSL	hsl(244, 57%, 42%)
HSV	hsv(244, 73%, 66%)
CMYK	cmyk(67.3%, 72.6%, 0%, 34.1%)
CIE-LAB	lab(28.36, 41.79, -63.85)
CIE-LCH	lch(28.36, 76.31, 303.21°)
OKLab	oklab(40.03% 0.0232 -0.1844)
OKLCH	oklch(40.03% 0.186 277.2)
XYZ	xyz(9.6181, 5.5925, 37.6108)
Luminance	0.0559 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#372EA8 #9FA82E

analogous

#2E62A8 #372EA8 #742EA8

triadic

#372EA8 #A8372E #2EA837

tetradic

#372EA8 #A82E62 #9FA82E #2EA874

square

#372EA8 #A82E62 #9FA82E #2EA874

split-complementary

#372EA8 #A8742E #62A82E

monochromatic

#181448 #272178 #372EA8 #5147CD #7E77DA

Accessibility & contrast

On white

9.91

#372EA8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.12

#372EA8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #372EA8

9.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##372EA8	#FFFFFF	#000000	##FFFFFF
##372EA8	1.00	9.91	2.12	9.91
#FFFFFF	9.91	1.00	21.00	1.00
#000000	2.12	21.00	1.00	21.00
##FFFFFF	9.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048AC

Deuteranopia (green-blind)

#003EA6

Tritanopia (blue-blind)

#005068

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #372ea8;
/* rgb */ color: rgb(55, 46, 168);
/* oklch */ color: oklch(40.0% 0.186 277.2);

Tailwind

colors: {
  custom: {
    50: '#7d68c3',
    500: '#372ea8',
    950: '#000000',
  },
}

SCSS

$custom: #372ea8;
$custom-light: #7d68c3;
$custom-dark: #000000;

JSON

{
  "hex": "#372ea8",
  "rgb": {
    "r": 55,
    "g": 46,
    "b": 168
  },
  "hsl": {
    "h": 244.426,
    "s": 57.009,
    "l": 41.961
  },
  "oklch": {
    "l": 0.40033,
    "c": 0.18586,
    "h": 277.2
  },
  "luminance": 0.05593
}

Semantic roles & 50–950 ramp

primary

#372EA8

secondary

#BCC270

accent

#E048D5

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #372EA8

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

Preview Lab → · Contrast checker → · Palette generator →