#372DAB#372DAB

#372DAB is a dark, vivid blue. Relative luminance 0.056; OKLCH L 40.2% C 0.191 H 277.0°. Best body text is #FFFFFF at 9.88:1 contrast (WCAG AA passes).

Color values

HEX	#372DAB
RGB	rgb(55, 45, 171)
HSL	hsl(245, 58%, 42%)
HSV	hsv(245, 74%, 67%)
CMYK	cmyk(67.8%, 73.7%, 0%, 32.9%)
CIE-LAB	lab(28.45, 43.34, -65.49)
CIE-LCH	lch(28.45, 78.53, 303.49°)
OKLab	oklab(40.19% 0.0233 -0.1892)
OKLCH	oklch(40.19% 0.191 277)
XYZ	xyz(9.8622, 5.6284, 39.0868)
Luminance	0.0563 (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

#372DAB #A1AB2D

analogous

#2D62AB #372DAB #762DAB

triadic

#372DAB #AB372D #2DAB37

tetradic

#372DAB #AB2D62 #A1AB2D #2DAB76

square

#372DAB #AB2D62 #A1AB2D #2DAB76

split-complementary

#372DAB #AB762D #62AB2D

monochromatic

#18144A #27207B #372DAB #5147CE #7F77DB

Accessibility & contrast

On white

9.88

#372DAB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#372DAB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #372DAB

9.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##372DAB	#FFFFFF	#000000	##FFFFFF
##372DAB	1.00	9.88	2.13	9.88
#FFFFFF	9.88	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048AF

Deuteranopia (green-blind)

#003EA9

Tritanopia (blue-blind)

#005169

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #372dab;
/* rgb */ color: rgb(55, 45, 171);
/* oklch */ color: oklch(40.2% 0.191 277.0);

Tailwind

colors: {
  custom: {
    50: '#7e68c5',
    500: '#372dab',
    950: '#000000',
  },
}

SCSS

$custom: #372dab;
$custom-light: #7e68c5;
$custom-dark: #000000;

JSON

{
  "hex": "#372dab",
  "rgb": {
    "r": 55,
    "g": 45,
    "b": 171
  },
  "hsl": {
    "h": 244.762,
    "s": 58.333,
    "l": 42.353
  },
  "oklch": {
    "l": 0.4019,
    "c": 0.19064,
    "h": 277
  },
  "luminance": 0.05629
}

Semantic roles & 50–950 ramp

primary

#372DAB

secondary

#BDC371

accent

#E246D5

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #372DAB

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

Preview Lab → · Contrast checker → · Palette generator →