#373FCA#373FCA

#373FCA is a mid, highly saturated blue. Relative luminance 0.086; OKLCH L 46.0% C 0.210 H 272.2°. Best body text is #FFFFFF at 7.70:1 contrast (WCAG AA passes).

Color values

HEX	#373FCA
RGB	rgb(55, 63, 202)
HSL	hsl(237, 58%, 50%)
HSV	hsv(237, 73%, 79%)
CMYK	cmyk(72.8%, 68.8%, 0%, 20.8%)
CIE-LAB	lab(35.26, 43.16, -72.61)
CIE-LCH	lch(35.26, 84.47, 300.73°)
OKLab	oklab(45.97% 0.0079 -0.21)
OKLCH	oklch(45.97% 0.21 272.2)
XYZ	xyz(14.0101, 8.6301, 56.7931)
Luminance	0.0863 (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

#373FCA #CAC237

analogous

#3788CA #373FCA #7937CA

triadic

#373FCA #CA373F #3FCA37

tetradic

#373FCA #CA3788 #CAC237 #37CA79

square

#373FCA #CA3788 #CAC237 #37CA79

split-complementary

#373FCA #CA7937 #88CA37

monochromatic

#1C206A #292F9B #373FCA #676DD7 #989CE4

Accessibility & contrast

On white

7.70

#373FCA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.73

#373FCA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #373FCA

7.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##373FCA	#FFFFFF	#000000	##FFFFFF
##373FCA	1.00	7.70	2.73	7.70
#FFFFFF	7.70	1.00	21.00	1.00
#000000	2.73	21.00	1.00	21.00
##FFFFFF	7.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005ACE

Deuteranopia (green-blind)

#004CC7

Tritanopia (blue-blind)

#00657F

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #373fca;
/* rgb */ color: rgb(55, 63, 202);
/* oklch */ color: oklch(46.0% 0.210 272.2);

Tailwind

colors: {
  custom: {
    50: '#8375db',
    500: '#373fca',
    950: '#000000',
  },
}

SCSS

$custom: #373fca;
$custom-light: #8375db;
$custom-dark: #000000;

JSON

{
  "hex": "#373fca",
  "rgb": {
    "r": 55,
    "g": 63,
    "b": 202
  },
  "hsl": {
    "h": 236.735,
    "s": 58.103,
    "l": 50.392
  },
  "oklch": {
    "l": 0.45973,
    "c": 0.21018,
    "h": 272.2
  },
  "luminance": 0.08632
}

Semantic roles & 50–950 ramp

primary

#373FCA

secondary

#CFCC8E

accent

#D946E1

background

#F8F7FD

surface

#F0EDFB

border

#CBC8D4

text

#0C0815

muted

#7D7B83

Preview Lab

Preview with #373FCA

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

Preview Lab → · Contrast checker → · Palette generator →