#373DC4#373DC4

#373DC4 is a mid, highly saturated blue. Relative luminance 0.081; OKLCH L 45.1% C 0.205 H 272.7°. Best body text is #FFFFFF at 7.99:1 contrast (WCAG AA passes).

Color values

HEX	#373DC4
RGB	rgb(55, 61, 196)
HSL	hsl(237, 56%, 49%)
HSV	hsv(237, 72%, 77%)
CMYK	cmyk(71.9%, 68.9%, 0%, 23.1%)
CIE-LAB	lab(34.26, 42.32, -70.76)
CIE-LCH	lch(34.26, 82.45, 300.88°)
OKLab	oklab(45.08% 0.0098 -0.2046)
OKLCH	oklch(45.08% 0.205 272.7)
XYZ	xyz(13.2048, 8.1339, 53.0879)
Luminance	0.0814 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue Blue

#2242C7

ΔE00 2.47

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#373DC4 #C4BE37

analogous

#3784C4 #373DC4 #7837C4

triadic

#373DC4 #C4373D #3DC437

tetradic

#373DC4 #C43784 #C4BE37 #37C478

square

#373DC4 #C43784 #C4BE37 #37C478

split-complementary

#373DC4 #C47837 #84C437

monochromatic

#1C1F64 #2A2E94 #373DC4 #6569D4 #9498E1

Accessibility & contrast

On white

7.99

#373DC4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.63

#373DC4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #373DC4

7.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##373DC4	#FFFFFF	#000000	##FFFFFF
##373DC4	1.00	7.99	2.63	7.99
#FFFFFF	7.99	1.00	21.00	1.00
#000000	2.63	21.00	1.00	21.00
##FFFFFF	7.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057C8

Deuteranopia (green-blind)

#004AC2

Tritanopia (blue-blind)

#00627C

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #373dc4;
/* rgb */ color: rgb(55, 61, 196);
/* oklch */ color: oklch(45.1% 0.205 272.7);

Tailwind

colors: {
  custom: {
    50: '#8273d7',
    500: '#373dc4',
    950: '#000000',
  },
}

SCSS

$custom: #373dc4;
$custom-light: #8273d7;
$custom-dark: #000000;

JSON

{
  "hex": "#373dc4",
  "rgb": {
    "r": 55,
    "g": 61,
    "b": 196
  },
  "hsl": {
    "h": 237.447,
    "s": 56.175,
    "l": 49.216
  },
  "oklch": {
    "l": 0.4508,
    "c": 0.20485,
    "h": 272.7
  },
  "luminance": 0.08135
}

Semantic roles & 50–950 ramp

primary

#373DC4

secondary

#CCC98B

accent

#D948DF

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0815

muted

#7D7B83

Preview Lab

Preview with #373DC4

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

Preview Lab → · Contrast checker → · Palette generator →