#372FCA#372FCA

#372FCA is a dark, highly saturated blue. Relative luminance 0.071; OKLCH L 43.7% C 0.226 H 274.0°. Best body text is #FFFFFF at 8.67:1 contrast (WCAG AA passes).

Color values

HEX	#372FCA
RGB	rgb(55, 47, 202)
HSL	hsl(243, 62%, 49%)
HSV	hsv(243, 77%, 79%)
CMYK	cmyk(72.8%, 76.7%, 0%, 20.8%)
CIE-LAB	lab(32.05, 52.13, -77.91)
CIE-LCH	lch(32.05, 93.74, 303.79°)
OKLab	oklab(43.69% 0.0157 -0.2254)
OKLCH	oklch(43.69% 0.226 274)
XYZ	xyz(13.2492, 7.1082, 56.5394)
Luminance	0.0711 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blurple

#5539CC

ΔE00 4.05

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#372FCA #C2CA2F

analogous

#2F75CA #372FCA #852FCA

triadic

#372FCA #CA372F #2FCA37

tetradic

#372FCA #CA2F75 #C2CA2F #2FCA85

square

#372FCA #CA2F75 #C2CA2F #2FCA85

split-complementary

#372FCA #CA852F #75CA2F

monochromatic

#1C1867 #292398 #372FCA #635DD9 #938FE5

Accessibility & contrast

On white

8.67

#372FCA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.42

#372FCA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #372FCA

8.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##372FCA	#FFFFFF	#000000	##FFFFFF
##372FCA	1.00	8.67	2.42	8.67
#FFFFFF	8.67	1.00	21.00	1.00
#000000	2.42	21.00	1.00	21.00
##FFFFFF	8.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052CE

Deuteranopia (green-blind)

#0044C7

Tritanopia (blue-blind)

#005D7B

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #372fca;
/* rgb */ color: rgb(55, 47, 202);
/* oklch */ color: oklch(43.7% 0.226 274.0);

Tailwind

colors: {
  custom: {
    50: '#856bdc',
    500: '#372fca',
    950: '#000000',
  },
}

SCSS

$custom: #372fca;
$custom-light: #856bdc;
$custom-dark: #000000;

JSON

{
  "hex": "#372fca",
  "rgb": {
    "r": 55,
    "g": 47,
    "b": 202
  },
  "hsl": {
    "h": 243.097,
    "s": 62.249,
    "l": 48.824
  },
  "oklch": {
    "l": 0.43686,
    "c": 0.22591,
    "h": 274
  },
  "luminance": 0.0711
}

Semantic roles & 50–950 ramp

primary

#372FCA

secondary

#CBCF86

accent

#E542DD

background

#F9F6FD

surface

#F1EBFB

border

#CBC6D4

text

#0D0715

muted

#7E7A83

Preview Lab

Preview with #372FCA

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

Preview Lab → · Contrast checker → · Palette generator →