#372FA5#372FA5

#372FA5 is a dark, vivid blue. Relative luminance 0.056; OKLCH L 39.9% C 0.181 H 277.3°. Best body text is #FFFFFF at 9.94:1 contrast (WCAG AA passes).

Color values

HEX	#372FA5
RGB	rgb(55, 47, 165)
HSL	hsl(244, 56%, 42%)
HSV	hsv(244, 72%, 65%)
CMYK	cmyk(66.7%, 71.5%, 0%, 35.3%)
CIE-LAB	lab(28.28, 40.22, -62.17)
CIE-LCH	lch(28.28, 74.05, 302.90°)
OKLab	oklab(39.89% 0.0231 -0.1795)
OKLCH	oklch(39.89% 0.181 277.3)
XYZ	xyz(9.3814, 5.5611, 36.1690)
Luminance	0.0556 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#372FA5 #9DA52F

analogous

#2F62A5 #372FA5 #722FA5

triadic

#372FA5 #A5372F #2FA537

tetradic

#372FA5 #A52F62 #9DA52F #2FA572

square

#372FA5 #A52F62 #9DA52F #2FA572

split-complementary

#372FA5 #A5722F #62A52F

monochromatic

#171446 #272175 #372FA5 #5047CB #7D76D8

Accessibility & contrast

On white

9.94

#372FA5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.11

#372FA5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #372FA5

9.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##372FA5	#FFFFFF	#000000	##FFFFFF
##372FA5	1.00	9.94	2.11	9.94
#FFFFFF	9.94	1.00	21.00	1.00
#000000	2.11	21.00	1.00	21.00
##FFFFFF	9.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048A9

Deuteranopia (green-blind)

#003EA3

Tritanopia (blue-blind)

#004F66

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #372fa5;
/* rgb */ color: rgb(55, 47, 165);
/* oklch */ color: oklch(39.9% 0.181 277.3);

Tailwind

colors: {
  custom: {
    50: '#7d69c1',
    500: '#372fa5',
    950: '#000000',
  },
}

SCSS

$custom: #372fa5;
$custom-light: #7d69c1;
$custom-dark: #000000;

JSON

{
  "hex": "#372fa5",
  "rgb": {
    "r": 55,
    "g": 47,
    "b": 165
  },
  "hsl": {
    "h": 244.068,
    "s": 55.66,
    "l": 41.569
  },
  "oklch": {
    "l": 0.39885,
    "c": 0.181,
    "h": 277.3
  },
  "luminance": 0.05562
}

Semantic roles & 50–950 ramp

primary

#372FA5

secondary

#BBC070

accent

#DF49D5

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0612

muted

#7C7A81

Preview Lab

Preview with #372FA5

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

Preview Lab → · Contrast checker → · Palette generator →