#372FB1#372FB1

#372FB1 is a dark, vivid blue. Relative luminance 0.060; OKLCH L 41.1% C 0.196 H 276.1°. Best body text is #FFFFFF at 9.53:1 contrast (WCAG AA passes).

Color values

HEX	#372FB1
RGB	rgb(55, 47, 177)
HSL	hsl(244, 58%, 44%)
HSV	hsv(244, 73%, 69%)
CMYK	cmyk(68.9%, 73.4%, 0%, 30.6%)
CIE-LAB	lab(29.46, 44.16, -67.43)
CIE-LCH	lch(29.46, 80.61, 303.22°)
OKLab	oklab(41.09% 0.0209 -0.1949)
OKLCH	oklch(41.09% 0.196 276.1)
XYZ	xyz(10.5253, 6.0186, 42.1935)
Luminance	0.0602 (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

#372FB1 #A9B12F

analogous

#2F68B1 #372FB1 #782FB1

triadic

#372FB1 #B1372F #2FB137

tetradic

#372FB1 #B12F68 #A9B12F #2FB178

square

#372FB1 #B12F68 #A9B12F #2FB178

split-complementary

#372FB1 #B1782F #68B12F

monochromatic

#191550 #282281 #372FB1 #554DD0 #847EDD

Accessibility & contrast

On white

9.53

#372FB1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#372FB1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #372FB1

9.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##372FB1	#FFFFFF	#000000	##FFFFFF
##372FB1	1.00	9.53	2.20	9.53
#FFFFFF	9.53	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BB5

Deuteranopia (green-blind)

#0040AF

Tritanopia (blue-blind)

#00546D

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #372fb1;
/* rgb */ color: rgb(55, 47, 177);
/* oklch */ color: oklch(41.1% 0.196 276.1);

Tailwind

colors: {
  custom: {
    50: '#7f69ca',
    500: '#372fb1',
    950: '#000000',
  },
}

SCSS

$custom: #372fb1;
$custom-light: #7f69ca;
$custom-dark: #000000;

JSON

{
  "hex": "#372fb1",
  "rgb": {
    "r": 55,
    "g": 47,
    "b": 177
  },
  "hsl": {
    "h": 243.692,
    "s": 58.036,
    "l": 43.922
  },
  "oklch": {
    "l": 0.41085,
    "c": 0.196,
    "h": 276.1
  },
  "luminance": 0.0602
}

Semantic roles & 50–950 ramp

primary

#372FB1

secondary

#C0C576

accent

#E147D8

background

#F8F6FC

surface

#F0EBF8

border

#CBC6D1

text

#0C0613

muted

#7D7A82

Preview Lab

Preview with #372FB1

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

Preview Lab → · Contrast checker → · Palette generator →