#372BB3#372BB3

#372BB3 is a dark, highly saturated blue. Relative luminance 0.058; OKLCH L 40.7% C 0.202 H 276.4°. Best body text is #FFFFFF at 9.73:1 contrast (WCAG AA passes).

Color values

HEX	#372BB3
RGB	rgb(55, 43, 179)
HSL	hsl(245, 61%, 44%)
HSV	hsv(245, 76%, 70%)
CMYK	cmyk(69.3%, 76%, 0%, 29.8%)
CIE-LAB	lab(28.89, 47.00, -69.57)
CIE-LCH	lch(28.89, 83.96, 304.04°)
OKLab	oklab(40.74% 0.0227 -0.2011)
OKLCH	oklch(40.74% 0.202 276.4)
XYZ	xyz(10.5734, 5.7937, 43.2002)
Luminance	0.0580 (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

#372BB3 #A7B32B

analogous

#2B63B3 #372BB3 #7B2BB3

triadic

#372BB3 #B3372B #2BB337

tetradic

#372BB3 #B32B63 #A7B32B #2BB37B

square

#372BB3 #B32B63 #A7B32B #2BB37B

split-complementary

#372BB3 #B37B2B #63B32B

monochromatic

#191350 #281F82 #372BB3 #5448D3 #8279DF

Accessibility & contrast

On white

9.73

#372BB3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#372BB3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #372BB3

9.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##372BB3	#FFFFFF	#000000	##FFFFFF
##372BB3	1.00	9.73	2.16	9.73
#FFFFFF	9.73	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AB7

Deuteranopia (green-blind)

#003EB1

Tritanopia (blue-blind)

#00536D

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #372bb3;
/* rgb */ color: rgb(55, 43, 179);
/* oklch */ color: oklch(40.7% 0.202 276.4);

Tailwind

colors: {
  custom: {
    50: '#8067cb',
    500: '#372bb3',
    950: '#000000',
  },
}

SCSS

$custom: #372bb3;
$custom-light: #8067cb;
$custom-dark: #000000;

JSON

{
  "hex": "#372bb3",
  "rgb": {
    "r": 55,
    "g": 43,
    "b": 179
  },
  "hsl": {
    "h": 245.294,
    "s": 61.261,
    "l": 43.529
  },
  "oklch": {
    "l": 0.4074,
    "c": 0.20236,
    "h": 276.4
  },
  "luminance": 0.05795
}

Semantic roles & 50–950 ramp

primary

#372BB3

secondary

#C0C773

accent

#E443D6

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0613

muted

#7D7A82

Preview Lab

Preview with #372BB3

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

Preview Lab → · Contrast checker → · Palette generator →