#373EAD#373EAD

#373EAD is a dark, vivid blue. Relative luminance 0.073; OKLCH L 43.1% C 0.174 H 273.7°. Best body text is #FFFFFF at 8.55:1 contrast (WCAG AA passes).

Color values

HEX	#373EAD
RGB	rgb(55, 62, 173)
HSL	hsl(236, 52%, 45%)
HSV	hsv(236, 68%, 68%)
CMYK	cmyk(68.2%, 64.2%, 0%, 32.2%)
CIE-LAB	lab(32.42, 33.75, -60.18)
CIE-LCH	lch(32.42, 69.00, 299.28°)
OKLab	oklab(43.11% 0.0113 -0.1737)
OKLCH	oklch(43.11% 0.174 273.7)
XYZ	xyz(10.8385, 7.2736, 40.3598)
Luminance	0.0727 (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

#373EAD #ADA637

analogous

#3779AD #373EAD #6B37AD

triadic

#373EAD #AD373E #3EAD37

tetradic

#373EAD #AD3779 #ADA637 #37AD6B

square

#373EAD #AD3779 #ADA637 #37AD6B

split-complementary

#373EAD #AD6B37 #79AD37

monochromatic

#191D50 #282D7F #373EAD #575ECA #868BD8

Accessibility & contrast

On white

8.55

#373EAD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.45

#373EAD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #373EAD

8.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##373EAD	#FFFFFF	#000000	##FFFFFF
##373EAD	1.00	8.55	2.45	8.55
#FFFFFF	8.55	1.00	21.00	1.00
#000000	2.45	21.00	1.00	21.00
##FFFFFF	8.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052B1

Deuteranopia (green-blind)

#0047AB

Tritanopia (blue-blind)

#005B6F

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #373ead;
/* rgb */ color: rgb(55, 62, 173);
/* oklch */ color: oklch(43.1% 0.174 273.7);

Tailwind

colors: {
  custom: {
    50: '#7d73c6',
    500: '#373ead',
    950: '#000000',
  },
}

SCSS

$custom: #373ead;
$custom-light: #7d73c6;
$custom-dark: #000000;

JSON

{
  "hex": "#373ead",
  "rgb": {
    "r": 55,
    "g": 62,
    "b": 173
  },
  "hsl": {
    "h": 236.441,
    "s": 51.754,
    "l": 44.706
  },
  "oklch": {
    "l": 0.4311,
    "c": 0.17402,
    "h": 273.7
  },
  "luminance": 0.07275
}

Semantic roles & 50–950 ramp

primary

#373EAD

secondary

#C2BE7D

accent

#D34DDB

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #373EAD

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

Preview Lab → · Contrast checker → · Palette generator →