#372EAA#372EAA

#372EAA is a dark, vivid blue. Relative luminance 0.057; OKLCH L 40.2% C 0.188 H 277.0°. Best body text is #FFFFFF at 9.84:1 contrast (WCAG AA passes).

Color values

HEX	#372EAA
RGB	rgb(55, 46, 170)
HSL	hsl(244, 57%, 42%)
HSV	hsv(244, 73%, 67%)
CMYK	cmyk(67.6%, 72.9%, 0%, 33.3%)
CIE-LAB	lab(28.56, 42.45, -64.72)
CIE-LCH	lch(28.56, 77.40, 303.26°)
OKLab	oklab(40.23% 0.0229 -0.187)
OKLCH	oklch(40.23% 0.188 277)
XYZ	xyz(9.8059, 5.6676, 38.5996)
Luminance	0.0567 (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

#372EAA #A1AA2E

analogous

#2E63AA #372EAA #752EAA

triadic

#372EAA #AA372E #2EAA37

tetradic

#372EAA #AA2E63 #A1AA2E #2EAA75

square

#372EAA #AA2E63 #A1AA2E #2EAA75

split-complementary

#372EAA #AA752E #63AA2E

monochromatic

#18144A #27217A #372EAA #5148CD #7F78DA

Accessibility & contrast

On white

9.84

#372EAA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#372EAA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #372EAA

9.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##372EAA	#FFFFFF	#000000	##FFFFFF
##372EAA	1.00	9.84	2.13	9.84
#FFFFFF	9.84	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0049AE

Deuteranopia (green-blind)

#003EA8

Tritanopia (blue-blind)

#005169

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #372eaa;
/* rgb */ color: rgb(55, 46, 170);
/* oklch */ color: oklch(40.2% 0.188 277.0);

Tailwind

colors: {
  custom: {
    50: '#7e68c4',
    500: '#372eaa',
    950: '#000000',
  },
}

SCSS

$custom: #372eaa;
$custom-light: #7e68c4;
$custom-dark: #000000;

JSON

{
  "hex": "#372eaa",
  "rgb": {
    "r": 55,
    "g": 46,
    "b": 170
  },
  "hsl": {
    "h": 244.355,
    "s": 57.407,
    "l": 42.353
  },
  "oklch": {
    "l": 0.40233,
    "c": 0.18836,
    "h": 277
  },
  "luminance": 0.05668
}

Semantic roles & 50–950 ramp

primary

#372EAA

secondary

#BDC371

accent

#E147D6

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #372EAA

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

Preview Lab → · Contrast checker → · Palette generator →