#372FA4#372FA4

#372FA4 is a dark, vivid blue. Relative luminance 0.055; OKLCH L 39.8% C 0.180 H 277.4°. Best body text is #FFFFFF at 9.98:1 contrast (WCAG AA passes).

Color values

HEX	#372FA4
RGB	rgb(55, 47, 164)
HSL	hsl(244, 55%, 41%)
HSV	hsv(244, 71%, 64%)
CMYK	cmyk(66.5%, 71.3%, 0%, 35.7%)
CIE-LAB	lab(28.18, 39.89, -61.73)
CIE-LCH	lch(28.18, 73.50, 302.87°)
OKLab	oklab(39.79% 0.0233 -0.1782)
OKLCH	oklch(39.79% 0.18 277.4)
XYZ	xyz(9.2907, 5.5248, 35.6915)
Luminance	0.0553 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#372FA4 #9CA42F

analogous

#2F62A4 #372FA4 #722FA4

triadic

#372FA4 #A4372F #2FA437

tetradic

#372FA4 #A42F62 #9CA42F #2FA472

square

#372FA4 #A42F62 #9CA42F #2FA472

split-complementary

#372FA4 #A4722F #62A42F

monochromatic

#171445 #272174 #372FA4 #4F46CA #7C76D8

Accessibility & contrast

On white

9.98

#372FA4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.11

#372FA4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #372FA4

9.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##372FA4	#FFFFFF	#000000	##FFFFFF
##372FA4	1.00	9.98	2.11	9.98
#FFFFFF	9.98	1.00	21.00	1.00
#000000	2.11	21.00	1.00	21.00
##FFFFFF	9.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0047A8

Deuteranopia (green-blind)

#003EA2

Tritanopia (blue-blind)

#004F66

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #372fa4;
/* rgb */ color: rgb(55, 47, 164);
/* oklch */ color: oklch(39.8% 0.180 277.4);

Tailwind

colors: {
  custom: {
    50: '#7c69c0',
    500: '#372fa4',
    950: '#000000',
  },
}

SCSS

$custom: #372fa4;
$custom-light: #7c69c0;
$custom-dark: #000000;

JSON

{
  "hex": "#372fa4",
  "rgb": {
    "r": 55,
    "g": 47,
    "b": 164
  },
  "hsl": {
    "h": 244.103,
    "s": 55.45,
    "l": 41.373
  },
  "oklch": {
    "l": 0.39787,
    "c": 0.17973,
    "h": 277.4
  },
  "luminance": 0.05526
}

Semantic roles & 50–950 ramp

primary

#372FA4

secondary

#BAC06F

accent

#DF49D5

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0612

muted

#7C7A81

Preview Lab

Preview with #372FA4

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

Preview Lab → · Contrast checker → · Palette generator →