#373CB6#373CB6

#373CB6 is a dark, vivid blue. Relative luminance 0.074; OKLCH L 43.6% C 0.188 H 273.6°. Best body text is #FFFFFF at 8.45:1 contrast (WCAG AA passes).

Color values

HEX	#373CB6
RGB	rgb(55, 60, 182)
HSL	hsl(238, 54%, 46%)
HSV	hsv(238, 70%, 71%)
CMYK	cmyk(69.8%, 67%, 0%, 28.6%)
CIE-LAB	lab(32.74, 38.14, -65.01)
CIE-LCH	lch(32.74, 75.37, 300.40°)
OKLab	oklab(43.59% 0.0119 -0.1878)
OKLCH	oklch(43.59% 0.188 273.6)
XYZ	xyz(11.6321, 7.4202, 45.0661)
Luminance	0.0742 (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

#373CB6 #B6B137

analogous

#377CB6 #373CB6 #7237B6

triadic

#373CB6 #B6373C #3CB637

tetradic

#373CB6 #B6377C #B6B137 #37B672

square

#373CB6 #B6377C #B6B137 #37B672

split-complementary

#373CB6 #B67237 #7CB637

monochromatic

#1B1D58 #292D87 #373CB6 #5C61CE #8B8FDC

Accessibility & contrast

On white

8.45

#373CB6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.48

#373CB6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #373CB6

8.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##373CB6	#FFFFFF	#000000	##FFFFFF
##373CB6	1.00	8.45	2.48	8.45
#FFFFFF	8.45	1.00	21.00	1.00
#000000	2.48	21.00	1.00	21.00
##FFFFFF	8.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053BA

Deuteranopia (green-blind)

#0047B4

Tritanopia (blue-blind)

#005C74

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #373cb6;
/* rgb */ color: rgb(55, 60, 182);
/* oklch */ color: oklch(43.6% 0.188 273.6);

Tailwind

colors: {
  custom: {
    50: '#7f72cd',
    500: '#373cb6',
    950: '#000000',
  },
}

SCSS

$custom: #373cb6;
$custom-light: #7f72cd;
$custom-dark: #000000;

JSON

{
  "hex": "#373cb6",
  "rgb": {
    "r": 55,
    "g": 60,
    "b": 182
  },
  "hsl": {
    "h": 237.638,
    "s": 53.586,
    "l": 46.471
  },
  "oklch": {
    "l": 0.4359,
    "c": 0.18818,
    "h": 273.6
  },
  "luminance": 0.07421
}

Semantic roles & 50–950 ramp

primary

#373CB6

secondary

#C6C482

accent

#D74BDD

background

#F8F6FC

surface

#F0ECF9

border

#CBC7D2

text

#0B0814

muted

#7C7B82

Preview Lab

Preview with #373CB6

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

Preview Lab → · Contrast checker → · Palette generator →