#373CC5#373CC5

#373CC5 is a mid, highly saturated blue. Relative luminance 0.081; OKLCH L 45.0% C 0.207 H 272.8°. Best body text is #FFFFFF at 8.03:1 contrast (WCAG AA passes).

Color values

HEX	#373CC5
RGB	rgb(55, 60, 197)
HSL	hsl(238, 56%, 49%)
HSV	hsv(238, 72%, 77%)
CMYK	cmyk(72.1%, 69.5%, 0%, 22.7%)
CIE-LAB	lab(34.14, 43.26, -71.55)
CIE-LCH	lch(34.14, 83.61, 301.16°)
OKLab	oklab(45.02% 0.0102 -0.2069)
OKLCH	oklch(45.02% 0.207 272.8)
XYZ	xyz(13.2661, 8.0738, 53.6718)
Luminance	0.0808 (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

#373CC5 #C5C037

analogous

#3783C5 #373CC5 #7937C5

triadic

#373CC5 #C5373C #3CC537

tetradic

#373CC5 #C53783 #C5C037 #37C579

square

#373CC5 #C53783 #C5C037 #37C579

split-complementary

#373CC5 #C57937 #83C537

monochromatic

#1C1F65 #2A2D95 #373CC5 #6569D4 #9598E1

Accessibility & contrast

On white

8.03

#373CC5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.62

#373CC5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #373CC5

8.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##373CC5	#FFFFFF	#000000	##FFFFFF
##373CC5	1.00	8.03	2.62	8.03
#FFFFFF	8.03	1.00	21.00	1.00
#000000	2.62	21.00	1.00	21.00
##FFFFFF	8.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057C9

Deuteranopia (green-blind)

#004AC2

Tritanopia (blue-blind)

#00627C

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #373cc5;
/* rgb */ color: rgb(55, 60, 197);
/* oklch */ color: oklch(45.0% 0.207 272.8);

Tailwind

colors: {
  custom: {
    50: '#8273d8',
    500: '#373cc5',
    950: '#000000',
  },
}

SCSS

$custom: #373cc5;
$custom-light: #8273d8;
$custom-dark: #000000;

JSON

{
  "hex": "#373cc5",
  "rgb": {
    "r": 55,
    "g": 60,
    "b": 197
  },
  "hsl": {
    "h": 237.887,
    "s": 56.349,
    "l": 49.412
  },
  "oklch": {
    "l": 0.45019,
    "c": 0.20717,
    "h": 272.8
  },
  "luminance": 0.08075
}

Semantic roles & 50–950 ramp

primary

#373CC5

secondary

#CDCA8B

accent

#DA48E0

background

#F8F7FD

surface

#F0EDFB

border

#CBC8D4

text

#0C0815

muted

#7D7B83

Preview Lab

Preview with #373CC5

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

Preview Lab → · Contrast checker → · Palette generator →