#372CA0#372CA0

#372CA0 is a dark, vivid blue. Relative luminance 0.052; OKLCH L 38.9% C 0.178 H 278.4°. Best body text is #FFFFFF at 10.34:1 contrast (WCAG AA passes).

Color values

HEX	#372CA0
RGB	rgb(55, 44, 160)
HSL	hsl(246, 57%, 40%)
HSV	hsv(246, 73%, 63%)
CMYK	cmyk(65.6%, 72.5%, 0%, 37.3%)
CIE-LAB	lab(27.16, 40.33, -60.98)
CIE-LCH	lch(27.16, 73.11, 303.48°)
OKLab	oklab(38.94% 0.0261 -0.176)
OKLCH	oklch(38.94% 0.178 278.4)
XYZ	xyz(8.8194, 5.1509, 33.7804)
Luminance	0.0515 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#372CA0 #95A02C

analogous

#2C5BA0 #372CA0 #712CA0

triadic

#372CA0 #A0372C #2CA037

tetradic

#372CA0 #A02C5B #95A02C #2CA071

square

#372CA0 #A02C5B #95A02C #2CA071

split-complementary

#372CA0 #A0712C #5BA02C

monochromatic

#161240 #271F70 #372CA0 #4C3FCA #796FD7

Accessibility & contrast

On white

10.34

#372CA0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.03

#372CA0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #372CA0

10.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##372CA0	#FFFFFF	#000000	##FFFFFF
##372CA0	1.00	10.34	2.03	10.34
#FFFFFF	10.34	1.00	21.00	1.00
#000000	2.03	21.00	1.00	21.00
##FFFFFF	10.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0045A3

Deuteranopia (green-blind)

#003B9E

Tritanopia (blue-blind)

#004C63

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #372ca0;
/* rgb */ color: rgb(55, 44, 160);
/* oklch */ color: oklch(38.9% 0.178 278.4);

Tailwind

colors: {
  custom: {
    50: '#7c67bd',
    500: '#372ca0',
    950: '#000000',
  },
}

SCSS

$custom: #372ca0;
$custom-light: #7c67bd;
$custom-dark: #000000;

JSON

{
  "hex": "#372ca0",
  "rgb": {
    "r": 55,
    "g": 44,
    "b": 160
  },
  "hsl": {
    "h": 245.69,
    "s": 56.863,
    "l": 40
  },
  "oklch": {
    "l": 0.38941,
    "c": 0.17794,
    "h": 278.4
  },
  "luminance": 0.05152
}

Semantic roles & 50–950 ramp

primary

#372CA0

secondary

#B6BF69

accent

#E048D2

background

#F8F6FB

surface

#EFEBF7

border

#CAC6D0

text

#0B0612

muted

#7C7A81

Preview Lab

Preview with #372CA0

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

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