#372FB9#372FB9

#372FB9 is a dark, highly saturated blue. Relative luminance 0.063; OKLCH L 41.9% C 0.206 H 275.4°. Best body text is #FFFFFF at 9.25:1 contrast (WCAG AA passes).

Color values

HEX	#372FB9
RGB	rgb(55, 47, 185)
HSL	hsl(243, 59%, 45%)
HSV	hsv(243, 75%, 73%)
CMYK	cmyk(70.3%, 74.6%, 0%, 27.5%)
CIE-LAB	lab(30.27, 46.74, -70.85)
CIE-LCH	lch(30.27, 84.88, 303.42°)
OKLab	oklab(41.9% 0.0193 -0.2048)
OKLCH	oklch(41.9% 0.206 275.4)
XYZ	xyz(11.3461, 6.3470, 46.5167)
Luminance	0.0635 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#372FB9 #B1B92F

analogous

#2F6CB9 #372FB9 #7C2FB9

triadic

#372FB9 #B9372F #2FB937

tetradic

#372FB9 #B92F6C #B1B92F #2FB97C

square

#372FB9 #B92F6C #B1B92F #2FB97C

split-complementary

#372FB9 #B97C2F #6CB92F

monochromatic

#1A1657 #282388 #372FB9 #5A52D3 #8883DF

Accessibility & contrast

On white

9.25

#372FB9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.27

#372FB9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #372FB9

9.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##372FB9	#FFFFFF	#000000	##FFFFFF
##372FB9	1.00	9.25	2.27	9.25
#FFFFFF	9.25	1.00	21.00	1.00
#000000	2.27	21.00	1.00	21.00
##FFFFFF	9.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DBD

Deuteranopia (green-blind)

#0041B7

Tritanopia (blue-blind)

#005772

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #372fb9;
/* rgb */ color: rgb(55, 47, 185);
/* oklch */ color: oklch(41.9% 0.206 275.4);

Tailwind

colors: {
  custom: {
    50: '#816acf',
    500: '#372fb9',
    950: '#000000',
  },
}

SCSS

$custom: #372fb9;
$custom-light: #816acf;
$custom-dark: #000000;

JSON

{
  "hex": "#372fb9",
  "rgb": {
    "r": 55,
    "g": 47,
    "b": 185
  },
  "hsl": {
    "h": 243.478,
    "s": 59.483,
    "l": 45.49
  },
  "oklch": {
    "l": 0.41903,
    "c": 0.20575,
    "h": 275.4
  },
  "luminance": 0.06348
}

Semantic roles & 50–950 ramp

primary

#372FB9

secondary

#C4C97B

accent

#E345DA

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0614

muted

#7D7A82

Preview Lab

Preview with #372FB9

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

Preview Lab → · Contrast checker → · Palette generator →