#373CC4#373CC4

#373CC4 is a dark, highly saturated blue. Relative luminance 0.080; OKLCH L 44.9% C 0.206 H 272.9°. Best body text is #FFFFFF at 8.06:1 contrast (WCAG AA passes).

Color values

HEX	#373CC4
RGB	rgb(55, 60, 196)
HSL	hsl(238, 56%, 49%)
HSV	hsv(238, 72%, 77%)
CMYK	cmyk(71.9%, 69.4%, 0%, 23.1%)
CIE-LAB	lab(34.04, 42.92, -71.12)
CIE-LCH	lch(34.04, 83.07, 301.11°)
OKLab	oklab(44.92% 0.0103 -0.2057)
OKLCH	oklch(44.92% 0.206 272.9)
XYZ	xyz(13.1519, 8.0281, 53.0703)
Luminance	0.0803 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue Blue

#2242C7

ΔE00 2.68

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#373CC4 #C4BF37

analogous

#3783C4 #373CC4 #7837C4

triadic

#373CC4 #C4373C #3CC437

tetradic

#373CC4 #C43783 #C4BF37 #37C478

square

#373CC4 #C43783 #C4BF37 #37C478

split-complementary

#373CC4 #C47837 #83C437

monochromatic

#1C1F64 #2A2D94 #373CC4 #6568D4 #9497E1

Accessibility & contrast

On white

8.06

#373CC4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.61

#373CC4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #373CC4

8.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##373CC4	#FFFFFF	#000000	##FFFFFF
##373CC4	1.00	8.06	2.61	8.06
#FFFFFF	8.06	1.00	21.00	1.00
#000000	2.61	21.00	1.00	21.00
##FFFFFF	8.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057C8

Deuteranopia (green-blind)

#0049C1

Tritanopia (blue-blind)

#00617B

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #373cc4;
/* rgb */ color: rgb(55, 60, 196);
/* oklch */ color: oklch(44.9% 0.206 272.9);

Tailwind

colors: {
  custom: {
    50: '#8272d7',
    500: '#373cc4',
    950: '#000000',
  },
}

SCSS

$custom: #373cc4;
$custom-light: #8272d7;
$custom-dark: #000000;

JSON

{
  "hex": "#373cc4",
  "rgb": {
    "r": 55,
    "g": 60,
    "b": 196
  },
  "hsl": {
    "h": 237.872,
    "s": 56.175,
    "l": 49.216
  },
  "oklch": {
    "l": 0.44922,
    "c": 0.20593,
    "h": 272.9
  },
  "luminance": 0.08029
}

Semantic roles & 50–950 ramp

primary

#373CC4

secondary

#CCCA8B

accent

#DA48DF

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0815

muted

#7D7B83

Preview Lab

Preview with #373CC4

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

Preview Lab → · Contrast checker → · Palette generator →