#373EC4#373EC4

#373EC4 is a mid, highly saturated blue. Relative luminance 0.082; OKLCH L 45.2% C 0.204 H 272.6°. Best body text is #FFFFFF at 7.93:1 contrast (WCAG AA passes).

Color values

HEX	#373EC4
RGB	rgb(55, 62, 196)
HSL	hsl(237, 56%, 49%)
HSV	hsv(237, 72%, 77%)
CMYK	cmyk(71.9%, 68.4%, 0%, 23.1%)
CIE-LAB	lab(34.48, 41.72, -70.39)
CIE-LCH	lch(34.48, 81.83, 300.65°)
OKLab	oklab(45.24% 0.0092 -0.2036)
OKLCH	oklch(45.24% 0.204 272.6)
XYZ	xyz(13.2586, 8.2417, 53.1059)
Luminance	0.0824 (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

#373EC4 #C4BD37

analogous

#3785C4 #373EC4 #7737C4

triadic

#373EC4 #C4373E #3EC437

tetradic

#373EC4 #C43785 #C4BD37 #37C477

square

#373EC4 #C43785 #C4BD37 #37C477

split-complementary

#373EC4 #C47737 #85C437

monochromatic

#1C2064 #2A2F94 #373EC4 #656AD4 #9498E1

Accessibility & contrast

On white

7.93

#373EC4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.65

#373EC4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #373EC4

7.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##373EC4	#FFFFFF	#000000	##FFFFFF
##373EC4	1.00	7.93	2.65	7.93
#FFFFFF	7.93	1.00	21.00	1.00
#000000	2.65	21.00	1.00	21.00
##FFFFFF	7.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058C8

Deuteranopia (green-blind)

#004AC2

Tritanopia (blue-blind)

#00627C

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #373ec4;
/* rgb */ color: rgb(55, 62, 196);
/* oklch */ color: oklch(45.2% 0.204 272.6);

Tailwind

colors: {
  custom: {
    50: '#8274d7',
    500: '#373ec4',
    950: '#000000',
  },
}

SCSS

$custom: #373ec4;
$custom-light: #8274d7;
$custom-dark: #000000;

JSON

{
  "hex": "#373ec4",
  "rgb": {
    "r": 55,
    "g": 62,
    "b": 196
  },
  "hsl": {
    "h": 237.021,
    "s": 56.175,
    "l": 49.216
  },
  "oklch": {
    "l": 0.45239,
    "c": 0.20377,
    "h": 272.6
  },
  "luminance": 0.08243
}

Semantic roles & 50–950 ramp

primary

#373EC4

secondary

#CCC98B

accent

#D848DF

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0815

muted

#7D7B83

Preview Lab

Preview with #373EC4

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

Preview Lab → · Contrast checker → · Palette generator →