#372AA3#372AA3

#372AA3 is a dark, vivid blue. Relative luminance 0.051; OKLCH L 39.0% C 0.184 H 278.4°. Best body text is #FFFFFF at 10.38:1 contrast (WCAG AA passes).

Color values

HEX	#372AA3
RGB	rgb(55, 42, 163)
HSL	hsl(246, 59%, 40%)
HSV	hsv(246, 74%, 64%)
CMYK	cmyk(66.3%, 74.2%, 0%, 36.1%)
CIE-LAB	lab(27.05, 42.44, -62.98)
CIE-LCH	lch(27.05, 75.94, 303.97°)
OKLab	oklab(38.95% 0.0268 -0.1819)
OKLCH	oklch(38.95% 0.184 278.4)
XYZ	xyz(9.0122, 5.1117, 35.1550)
Luminance	0.0511 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#372AA3 #96A32A

analogous

#2A5AA3 #372AA3 #732AA3

triadic

#372AA3 #A3372A #2AA337

tetradic

#372AA3 #A32A5A #96A32A #2AA373

square

#372AA3 #A32A5A #96A32A #2AA373

split-complementary

#372AA3 #A3732A #5AA32A

monochromatic

#161142 #271D72 #372AA3 #4D3DCD #796EDA

Accessibility & contrast

On white

10.38

#372AA3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.02

#372AA3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #372AA3

10.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##372AA3	#FFFFFF	#000000	##FFFFFF
##372AA3	1.00	10.38	2.02	10.38
#FFFFFF	10.38	1.00	21.00	1.00
#000000	2.02	21.00	1.00	21.00
##FFFFFF	10.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0045A7

Deuteranopia (green-blind)

#003BA1

Tritanopia (blue-blind)

#004C64

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #372aa3;
/* rgb */ color: rgb(55, 42, 163);
/* oklch */ color: oklch(39.0% 0.184 278.4);

Tailwind

colors: {
  custom: {
    50: '#7d66bf',
    500: '#372aa3',
    950: '#000000',
  },
}

SCSS

$custom: #372aa3;
$custom-light: #7d66bf;
$custom-dark: #000000;

JSON

{
  "hex": "#372aa3",
  "rgb": {
    "r": 55,
    "g": 42,
    "b": 163
  },
  "hsl": {
    "h": 246.446,
    "s": 59.024,
    "l": 40.196
  },
  "oklch": {
    "l": 0.38952,
    "c": 0.18382,
    "h": 278.4
  },
  "luminance": 0.05112
}

Semantic roles & 50–950 ramp

primary

#372AA3

secondary

#B7C068

accent

#E246D1

background

#F8F6FB

surface

#EFEBF7

border

#CAC6D0

text

#0B0612

muted

#7C7A81

Preview Lab

Preview with #372AA3

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

Preview Lab → · Contrast checker → · Palette generator →