#372DA0#372DA0

#372DA0 is a dark, vivid blue. Relative luminance 0.052; OKLCH L 39.1% C 0.177 H 278.3°. Best body text is #FFFFFF at 10.27:1 contrast (WCAG AA passes).

Color values

HEX	#372DA0
RGB	rgb(55, 45, 160)
HSL	hsl(245, 56%, 40%)
HSV	hsv(245, 72%, 63%)
CMYK	cmyk(65.6%, 71.9%, 0%, 37.3%)
CIE-LAB	lab(27.37, 39.74, -60.63)
CIE-LCH	lch(27.37, 72.50, 303.24°)
OKLab	oklab(39.09% 0.0254 -0.175)
OKLCH	oklch(39.09% 0.177 278.3)
XYZ	xyz(8.8571, 5.2263, 33.7929)
Luminance	0.0523 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#372DA0 #96A02D

analogous

#2D5DA0 #372DA0 #702DA0

triadic

#372DA0 #A0372D #2DA037

tetradic

#372DA0 #A02D5D #96A02D #2DA070

square

#372DA0 #A02D5D #96A02D #2DA070

split-complementary

#372DA0 #A0702D #5DA02D

monochromatic

#161240 #272070 #372DA0 #4D41C9 #7970D7

Accessibility & contrast

On white

10.27

#372DA0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#372DA0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #372DA0

10.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##372DA0	#FFFFFF	#000000	##FFFFFF
##372DA0	1.00	10.27	2.05	10.27
#FFFFFF	10.27	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0045A3

Deuteranopia (green-blind)

#003C9E

Tritanopia (blue-blind)

#004D63

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #372da0;
/* rgb */ color: rgb(55, 45, 160);
/* oklch */ color: oklch(39.1% 0.177 278.3);

Tailwind

colors: {
  custom: {
    50: '#7c67bd',
    500: '#372da0',
    950: '#000000',
  },
}

SCSS

$custom: #372da0;
$custom-light: #7c67bd;
$custom-dark: #000000;

JSON

{
  "hex": "#372da0",
  "rgb": {
    "r": 55,
    "g": 45,
    "b": 160
  },
  "hsl": {
    "h": 245.217,
    "s": 56.098,
    "l": 40.196
  },
  "oklch": {
    "l": 0.3909,
    "c": 0.17685,
    "h": 278.3
  },
  "luminance": 0.05227
}

Semantic roles & 50–950 ramp

primary

#372DA0

secondary

#B7BE6B

accent

#DF48D2

background

#F8F6FB

surface

#EFEBF7

border

#CAC6D0

text

#0B0612

muted

#7C7A81

Preview Lab

Preview with #372DA0

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

Preview Lab → · Contrast checker → · Palette generator →