#372FAA#372FAA

#372FAA is a dark, vivid blue. Relative luminance 0.057; OKLCH L 40.4% C 0.187 H 276.8°. Best body text is #FFFFFF at 9.77:1 contrast (WCAG AA passes).

Color values

HEX	#372FAA
RGB	rgb(55, 47, 170)
HSL	hsl(244, 57%, 43%)
HSV	hsv(244, 72%, 67%)
CMYK	cmyk(67.6%, 72.4%, 0%, 33.3%)
CIE-LAB	lab(28.76, 41.87, -64.38)
CIE-LCH	lch(28.76, 76.80, 303.04°)
OKLab	oklab(40.38% 0.0222 -0.186)
OKLCH	oklch(40.38% 0.187 276.8)
XYZ	xyz(9.8454, 5.7467, 38.6128)
Luminance	0.0575 (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

#372FAA #A2AA2F

analogous

#2F65AA #372FAA #742FAA

triadic

#372FAA #AA372F #2FAA37

tetradic

#372FAA #AA2F65 #A2AA2F #2FAA74

square

#372FAA #AA2F65 #A2AA2F #2FAA74

split-complementary

#372FAA #AA742F #65AA2F

monochromatic

#18144A #27227A #372FAA #5249CD #8079DA

Accessibility & contrast

On white

9.77

#372FAA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#372FAA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #372FAA

9.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##372FAA	#FFFFFF	#000000	##FFFFFF
##372FAA	1.00	9.77	2.15	9.77
#FFFFFF	9.77	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0049AE

Deuteranopia (green-blind)

#003EA8

Tritanopia (blue-blind)

#005169

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #372faa;
/* rgb */ color: rgb(55, 47, 170);
/* oklch */ color: oklch(40.4% 0.187 276.8);

Tailwind

colors: {
  custom: {
    50: '#7e69c4',
    500: '#372faa',
    950: '#000000',
  },
}

SCSS

$custom: #372faa;
$custom-light: #7e69c4;
$custom-dark: #000000;

JSON

{
  "hex": "#372faa",
  "rgb": {
    "r": 55,
    "g": 47,
    "b": 170
  },
  "hsl": {
    "h": 243.902,
    "s": 56.682,
    "l": 42.549
  },
  "oklch": {
    "l": 0.4038,
    "c": 0.1873,
    "h": 276.8
  },
  "luminance": 0.05748
}

Semantic roles & 50–950 ramp

primary

#372FAA

secondary

#BDC272

accent

#E048D6

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #372FAA

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

Preview Lab → · Contrast checker → · Palette generator →