#373FBE#373FBE

#373FBE is a dark, vivid blue. Relative luminance 0.081; OKLCH L 44.8% C 0.195 H 272.7°. Best body text is #FFFFFF at 8.02:1 contrast (WCAG AA passes).

Color values

HEX	#373FBE
RGB	rgb(55, 63, 190)
HSL	hsl(236, 55%, 48%)
HSV	hsv(236, 71%, 75%)
CMYK	cmyk(71.1%, 66.8%, 0%, 25.5%)
CIE-LAB	lab(34.16, 39.05, -67.41)
CIE-LCH	lch(34.16, 77.90, 300.08°)
OKLab	oklab(44.84% 0.0092 -0.1948)
OKLCH	oklch(44.84% 0.195 272.7)
XYZ	xyz(12.6442, 8.0837, 49.5992)
Luminance	0.0809 (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

#373FBE #BEB637

analogous

#3783BE #373FBE #7237BE

triadic

#373FBE #BE373F #3FBE37

tetradic

#373FBE #BE3783 #BEB637 #37BE72

square

#373FBE #BE3783 #BEB637 #37BE72

split-complementary

#373FBE #BE7237 #83BE37

monochromatic

#1C205F #292F8F #373FBE #6168D1 #9095DF

Accessibility & contrast

On white

8.02

#373FBE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.62

#373FBE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #373FBE

8.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##373FBE	#FFFFFF	#000000	##FFFFFF
##373FBE	1.00	8.02	2.62	8.02
#FFFFFF	8.02	1.00	21.00	1.00
#000000	2.62	21.00	1.00	21.00
##FFFFFF	8.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057C2

Deuteranopia (green-blind)

#004ABC

Tritanopia (blue-blind)

#006179

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #373fbe;
/* rgb */ color: rgb(55, 63, 190);
/* oklch */ color: oklch(44.8% 0.195 272.7);

Tailwind

colors: {
  custom: {
    50: '#8174d3',
    500: '#373fbe',
    950: '#000000',
  },
}

SCSS

$custom: #373fbe;
$custom-light: #8174d3;
$custom-dark: #000000;

JSON

{
  "hex": "#373fbe",
  "rgb": {
    "r": 55,
    "g": 63,
    "b": 190
  },
  "hsl": {
    "h": 236.444,
    "s": 55.102,
    "l": 48.039
  },
  "oklch": {
    "l": 0.44836,
    "c": 0.19505,
    "h": 272.7
  },
  "luminance": 0.08085
}

Semantic roles & 50–950 ramp

primary

#373FBE

secondary

#CAC687

accent

#D649DE

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #373FBE

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

Preview Lab → · Contrast checker → · Palette generator →