#373FC3#373FC3

#373FC3 is a mid, highly saturated blue. Relative luminance 0.083; OKLCH L 45.3% C 0.201 H 272.5°. Best body text is #FFFFFF at 7.89:1 contrast (WCAG AA passes).

Color values

HEX	#373FC3
RGB	rgb(55, 63, 195)
HSL	hsl(237, 56%, 49%)
HSV	hsv(237, 72%, 76%)
CMYK	cmyk(71.8%, 67.7%, 0%, 23.5%)
CIE-LAB	lab(34.61, 40.77, -69.59)
CIE-LCH	lch(34.61, 80.66, 300.37°)
OKLab	oklab(45.31% 0.0087 -0.2012)
OKLCH	oklch(45.31% 0.201 272.5)
XYZ	xyz(13.2001, 8.3060, 52.5267)
Luminance	0.0831 (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

#373FC3 #C3BB37

analogous

#3785C3 #373FC3 #7537C3

triadic

#373FC3 #C3373F #3FC337

tetradic

#373FC3 #C33785 #C3BB37 #37C375

square

#373FC3 #C33785 #C3BB37 #37C375

split-complementary

#373FC3 #C37537 #85C337

monochromatic

#1C2064 #2A3093 #373FC3 #646AD3 #9498E1

Accessibility & contrast

On white

7.89

#373FC3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.66

#373FC3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #373FC3

7.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##373FC3	#FFFFFF	#000000	##FFFFFF
##373FC3	1.00	7.89	2.66	7.89
#FFFFFF	7.89	1.00	21.00	1.00
#000000	2.66	21.00	1.00	21.00
##FFFFFF	7.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058C7

Deuteranopia (green-blind)

#004BC1

Tritanopia (blue-blind)

#00637C

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #373fc3;
/* rgb */ color: rgb(55, 63, 195);
/* oklch */ color: oklch(45.3% 0.201 272.5);

Tailwind

colors: {
  custom: {
    50: '#8274d6',
    500: '#373fc3',
    950: '#000000',
  },
}

SCSS

$custom: #373fc3;
$custom-light: #8274d6;
$custom-dark: #000000;

JSON

{
  "hex": "#373fc3",
  "rgb": {
    "r": 55,
    "g": 63,
    "b": 195
  },
  "hsl": {
    "h": 236.571,
    "s": 56,
    "l": 49.02
  },
  "oklch": {
    "l": 0.45306,
    "c": 0.2014,
    "h": 272.5
  },
  "luminance": 0.08307
}

Semantic roles & 50–950 ramp

primary

#373FC3

secondary

#CCC88A

accent

#D749DF

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #373FC3

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

Preview Lab → · Contrast checker → · Palette generator →