#372FAC#372FAC

#372FAC is a dark, vivid blue. Relative luminance 0.058; OKLCH L 40.6% C 0.190 H 276.6°. Best body text is #FFFFFF at 9.70:1 contrast (WCAG AA passes).

Color values

HEX	#372FAC
RGB	rgb(55, 47, 172)
HSL	hsl(244, 57%, 43%)
HSV	hsv(244, 73%, 67%)
CMYK	cmyk(68%, 72.7%, 0%, 32.5%)
CIE-LAB	lab(28.96, 42.53, -65.26)
CIE-LCH	lch(28.96, 77.90, 303.09°)
OKLab	oklab(40.58% 0.0218 -0.1885)
OKLCH	oklch(40.58% 0.19 276.6)
XYZ	xyz(10.0360, 5.8229, 39.6168)
Luminance	0.0582 (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

#372FAC #A4AC2F

analogous

#2F65AC #372FAC #752FAC

triadic

#372FAC #AC372F #2FAC37

tetradic

#372FAC #AC2F65 #A4AC2F #2FAC75

square

#372FAC #AC2F65 #A4AC2F #2FAC75

split-complementary

#372FAC #AC752F #65AC2F

monochromatic

#18154C #28227C #372FAC #534BCE #817BDB

Accessibility & contrast

On white

9.70

#372FAC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#372FAC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #372FAC

9.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##372FAC	#FFFFFF	#000000	##FFFFFF
##372FAC	1.00	9.70	2.16	9.70
#FFFFFF	9.70	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AB0

Deuteranopia (green-blind)

#003FAA

Tritanopia (blue-blind)

#00526A

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #372fac;
/* rgb */ color: rgb(55, 47, 172);
/* oklch */ color: oklch(40.6% 0.190 276.6);

Tailwind

colors: {
  custom: {
    50: '#7e69c6',
    500: '#372fac',
    950: '#000000',
  },
}

SCSS

$custom: #372fac;
$custom-light: #7e69c6;
$custom-dark: #000000;

JSON

{
  "hex": "#372fac",
  "rgb": {
    "r": 55,
    "g": 47,
    "b": 172
  },
  "hsl": {
    "h": 243.84,
    "s": 57.078,
    "l": 42.941
  },
  "oklch": {
    "l": 0.4058,
    "c": 0.1898,
    "h": 276.6
  },
  "luminance": 0.05824
}

Semantic roles & 50–950 ramp

primary

#372FAC

secondary

#BEC374

accent

#E047D7

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #372FAC

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

Preview Lab → · Contrast checker → · Palette generator →