#372BA6#372BA6

#372BA6 is a dark, vivid blue. Relative luminance 0.053; OKLCH L 39.4% C 0.187 H 277.9°. Best body text is #FFFFFF at 10.20:1 contrast (WCAG AA passes).

Color values

HEX	#372BA6
RGB	rgb(55, 43, 166)
HSL	hsl(246, 59%, 41%)
HSV	hsv(246, 74%, 65%)
CMYK	cmyk(66.9%, 74.1%, 0%, 34.9%)
CIE-LAB	lab(27.55, 42.84, -63.97)
CIE-LCH	lch(27.55, 76.99, 303.81°)
OKLab	oklab(39.4% 0.0255 -0.1847)
OKLCH	oklch(39.4% 0.187 277.9)
XYZ	xyz(9.3201, 5.2924, 36.5994)
Luminance	0.0529 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#372BA6 #9AA62B

analogous

#2B5CA6 #372BA6 #742BA6

triadic

#372BA6 #A6372B #2BA637

tetradic

#372BA6 #A62B5C #9AA62B #2BA674

square

#372BA6 #A62B5C #9AA62B #2BA674

split-complementary

#372BA6 #A6742B #5CA62B

monochromatic

#171245 #271E75 #372BA6 #4E41CE #7B71DA

Accessibility & contrast

On white

10.20

#372BA6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.06

#372BA6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #372BA6

10.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##372BA6	#FFFFFF	#000000	##FFFFFF
##372BA6	1.00	10.20	2.06	10.20
#FFFFFF	10.20	1.00	21.00	1.00
#000000	2.06	21.00	1.00	21.00
##FFFFFF	10.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0046AA

Deuteranopia (green-blind)

#003CA4

Tritanopia (blue-blind)

#004E66

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #372ba6;
/* rgb */ color: rgb(55, 43, 166);
/* oklch */ color: oklch(39.4% 0.187 277.9);

Tailwind

colors: {
  custom: {
    50: '#7d66c2',
    500: '#372ba6',
    950: '#000000',
  },
}

SCSS

$custom: #372ba6;
$custom-light: #7d66c2;
$custom-dark: #000000;

JSON

{
  "hex": "#372ba6",
  "rgb": {
    "r": 55,
    "g": 43,
    "b": 166
  },
  "hsl": {
    "h": 245.854,
    "s": 58.852,
    "l": 40.98
  },
  "oklch": {
    "l": 0.39399,
    "c": 0.18651,
    "h": 277.9
  },
  "luminance": 0.05293
}

Semantic roles & 50–950 ramp

primary

#372BA6

secondary

#B9C16B

accent

#E246D3

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0612

muted

#7C7A81

Preview Lab

Preview with #372BA6

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

Preview Lab → · Contrast checker → · Palette generator →