#373DC3#373DC3

#373DC3 is a dark, highly saturated blue. Relative luminance 0.081; OKLCH L 45.0% C 0.204 H 272.8°. Best body text is #FFFFFF at 8.02:1 contrast (WCAG AA passes).

Color values

HEX	#373DC3
RGB	rgb(55, 61, 195)
HSL	hsl(237, 56%, 49%)
HSV	hsv(237, 72%, 76%)
CMYK	cmyk(71.8%, 68.7%, 0%, 23.5%)
CIE-LAB	lab(34.17, 41.98, -70.33)
CIE-LCH	lch(34.17, 81.90, 300.84°)
OKLab	oklab(44.98% 0.0099 -0.2034)
OKLCH	oklch(44.98% 0.204 272.8)
XYZ	xyz(13.0913, 8.0885, 52.4905)
Luminance	0.0809 (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

#373DC3 #C3BD37

analogous

#3783C3 #373DC3 #7737C3

triadic

#373DC3 #C3373D #3DC337

tetradic

#373DC3 #C33783 #C3BD37 #37C377

square

#373DC3 #C33783 #C3BD37 #37C377

split-complementary

#373DC3 #C37737 #83C337

monochromatic

#1C1F64 #2A2E93 #373DC3 #6469D3 #9497E1

Accessibility & contrast

On white

8.02

#373DC3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.62

#373DC3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #373DC3

8.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##373DC3	#FFFFFF	#000000	##FFFFFF
##373DC3	1.00	8.02	2.62	8.02
#FFFFFF	8.02	1.00	21.00	1.00
#000000	2.62	21.00	1.00	21.00
##FFFFFF	8.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057C7

Deuteranopia (green-blind)

#004AC1

Tritanopia (blue-blind)

#00627B

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #373dc3;
/* rgb */ color: rgb(55, 61, 195);
/* oklch */ color: oklch(45.0% 0.204 272.8);

Tailwind

colors: {
  custom: {
    50: '#8273d6',
    500: '#373dc3',
    950: '#000000',
  },
}

SCSS

$custom: #373dc3;
$custom-light: #8273d6;
$custom-dark: #000000;

JSON

{
  "hex": "#373dc3",
  "rgb": {
    "r": 55,
    "g": 61,
    "b": 195
  },
  "hsl": {
    "h": 237.429,
    "s": 56,
    "l": 49.02
  },
  "oklch": {
    "l": 0.44984,
    "c": 0.2036,
    "h": 272.8
  },
  "luminance": 0.0809
}

Semantic roles & 50–950 ramp

primary

#373DC3

secondary

#CCC98A

accent

#D949DF

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #373DC3

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

Preview Lab → · Contrast checker → · Palette generator →