#372DA9#372DA9

#372DA9 is a dark, vivid blue. Relative luminance 0.056; OKLCH L 40.0% C 0.188 H 277.2°. Best body text is #FFFFFF at 9.95:1 contrast (WCAG AA passes).

Color values

HEX	#372DA9
RGB	rgb(55, 45, 169)
HSL	hsl(245, 58%, 42%)
HSV	hsv(245, 73%, 66%)
CMYK	cmyk(67.5%, 73.4%, 0%, 33.7%)
CIE-LAB	lab(28.25, 42.69, -64.62)
CIE-LCH	lch(28.25, 77.45, 303.45°)
OKLab	oklab(39.99% 0.0237 -0.1867)
OKLCH	oklch(39.99% 0.188 277.2)
XYZ	xyz(9.6730, 5.5527, 38.0905)
Luminance	0.0555 (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

#372DA9 #9FA92D

analogous

#2D61A9 #372DA9 #752DA9

triadic

#372DA9 #A9372D #2DA937

tetradic

#372DA9 #A92D61 #9FA92D #2DA975

square

#372DA9 #A92D61 #9FA92D #2DA975

split-complementary

#372DA9 #A9752D #61A92D

monochromatic

#181348 #272079 #372DA9 #5146CE #7E76DA

Accessibility & contrast

On white

9.95

#372DA9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.11

#372DA9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #372DA9

9.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##372DA9	#FFFFFF	#000000	##FFFFFF
##372DA9	1.00	9.95	2.11	9.95
#FFFFFF	9.95	1.00	21.00	1.00
#000000	2.11	21.00	1.00	21.00
##FFFFFF	9.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048AD

Deuteranopia (green-blind)

#003DA7

Tritanopia (blue-blind)

#005068

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #372da9;
/* rgb */ color: rgb(55, 45, 169);
/* oklch */ color: oklch(40.0% 0.188 277.2);

Tailwind

colors: {
  custom: {
    50: '#7e68c4',
    500: '#372da9',
    950: '#000000',
  },
}

SCSS

$custom: #372da9;
$custom-light: #7e68c4;
$custom-dark: #000000;

JSON

{
  "hex": "#372da9",
  "rgb": {
    "r": 55,
    "g": 45,
    "b": 169
  },
  "hsl": {
    "h": 244.839,
    "s": 57.944,
    "l": 41.961
  },
  "oklch": {
    "l": 0.39988,
    "c": 0.18815,
    "h": 277.2
  },
  "luminance": 0.05554
}

Semantic roles & 50–950 ramp

primary

#372DA9

secondary

#BCC26F

accent

#E147D5

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #372DA9

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

Preview Lab → · Contrast checker → · Palette generator →