#373EC5#373EC5

#373EC5 is a mid, highly saturated blue. Relative luminance 0.083; OKLCH L 45.3% C 0.205 H 272.5°. Best body text is #FFFFFF at 7.90:1 contrast (WCAG AA passes).

Color values

HEX	#373EC5
RGB	rgb(55, 62, 197)
HSL	hsl(237, 56%, 49%)
HSV	hsv(237, 72%, 77%)
CMYK	cmyk(72.1%, 68.5%, 0%, 22.7%)
CIE-LAB	lab(34.57, 42.06, -70.83)
CIE-LCH	lch(34.57, 82.37, 300.71°)
OKLab	oklab(45.34% 0.0091 -0.2048)
OKLCH	oklch(45.34% 0.205 272.5)
XYZ	xyz(13.3728, 8.2873, 53.7073)
Luminance	0.0829 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue Blue

#2242C7

ΔE00 2.29

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#373EC5 #C5BE37

analogous

#3785C5 #373EC5 #7737C5

triadic

#373EC5 #C5373E #3EC537

tetradic

#373EC5 #C53785 #C5BE37 #37C577

square

#373EC5 #C53785 #C5BE37 #37C577

split-complementary

#373EC5 #C57737 #85C537

monochromatic

#1C2065 #2A2F95 #373EC5 #656BD4 #9599E1

Accessibility & contrast

On white

7.90

#373EC5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.66

#373EC5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #373EC5

7.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##373EC5	#FFFFFF	#000000	##FFFFFF
##373EC5	1.00	7.90	2.66	7.90
#FFFFFF	7.90	1.00	21.00	1.00
#000000	2.66	21.00	1.00	21.00
##FFFFFF	7.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058C9

Deuteranopia (green-blind)

#004BC2

Tritanopia (blue-blind)

#00637C

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #373ec5;
/* rgb */ color: rgb(55, 62, 197);
/* oklch */ color: oklch(45.3% 0.205 272.5);

Tailwind

colors: {
  custom: {
    50: '#8274d8',
    500: '#373ec5',
    950: '#000000',
  },
}

SCSS

$custom: #373ec5;
$custom-light: #8274d8;
$custom-dark: #000000;

JSON

{
  "hex": "#373ec5",
  "rgb": {
    "r": 55,
    "g": 62,
    "b": 197
  },
  "hsl": {
    "h": 237.042,
    "s": 56.349,
    "l": 49.412
  },
  "oklch": {
    "l": 0.45335,
    "c": 0.20502,
    "h": 272.5
  },
  "luminance": 0.08289
}

Semantic roles & 50–950 ramp

primary

#373EC5

secondary

#CDC98B

accent

#D848E0

background

#F8F7FD

surface

#F0EDFB

border

#CBC8D4

text

#0C0815

muted

#7D7B83

Preview Lab

Preview with #373EC5

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

Preview Lab → · Contrast checker → · Palette generator →