#372FAD#372FAD

#372FAD is a dark, vivid blue. Relative luminance 0.059; OKLCH L 40.7% C 0.191 H 276.5°. Best body text is #FFFFFF at 9.67:1 contrast (WCAG AA passes).

Color values

HEX	#372FAD
RGB	rgb(55, 47, 173)
HSL	hsl(244, 57%, 43%)
HSV	hsv(244, 73%, 68%)
CMYK	cmyk(68.2%, 72.8%, 0%, 32.2%)
CIE-LAB	lab(29.06, 42.85, -65.70)
CIE-LCH	lch(29.06, 78.44, 303.12°)
OKLab	oklab(40.68% 0.0217 -0.1898)
OKLCH	oklch(40.68% 0.191 276.5)
XYZ	xyz(10.1324, 5.8615, 40.1245)
Luminance	0.0586 (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

#372FAD #A5AD2F

analogous

#2F66AD #372FAD #762FAD

triadic

#372FAD #AD372F #2FAD37

tetradic

#372FAD #AD2F66 #A5AD2F #2FAD76

square

#372FAD #AD2F66 #A5AD2F #2FAD76

split-complementary

#372FAD #AD762F #66AD2F

monochromatic

#18154D #28227D #372FAD #534BCE #817BDB

Accessibility & contrast

On white

9.67

#372FAD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.17

#372FAD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #372FAD

9.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##372FAD	#FFFFFF	#000000	##FFFFFF
##372FAD	1.00	9.67	2.17	9.67
#FFFFFF	9.67	1.00	21.00	1.00
#000000	2.17	21.00	1.00	21.00
##FFFFFF	9.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AB1

Deuteranopia (green-blind)

#003FAB

Tritanopia (blue-blind)

#00526B

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #372fad;
/* rgb */ color: rgb(55, 47, 173);
/* oklch */ color: oklch(40.7% 0.191 276.5);

Tailwind

colors: {
  custom: {
    50: '#7e69c7',
    500: '#372fad',
    950: '#000000',
  },
}

SCSS

$custom: #372fad;
$custom-light: #7e69c7;
$custom-dark: #000000;

JSON

{
  "hex": "#372fad",
  "rgb": {
    "r": 55,
    "g": 47,
    "b": 173
  },
  "hsl": {
    "h": 243.81,
    "s": 57.273,
    "l": 43.137
  },
  "oklch": {
    "l": 0.40681,
    "c": 0.19104,
    "h": 276.5
  },
  "luminance": 0.05862
}

Semantic roles & 50–950 ramp

primary

#372FAD

secondary

#BFC474

accent

#E147D7

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #372FAD

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

Preview Lab → · Contrast checker → · Palette generator →