#373DC5#373DC5

#373DC5 is a mid, highly saturated blue. Relative luminance 0.082; OKLCH L 45.2% C 0.206 H 272.7°. Best body text is #FFFFFF at 7.97:1 contrast (WCAG AA passes).

Color values

HEX	#373DC5
RGB	rgb(55, 61, 197)
HSL	hsl(237, 56%, 49%)
HSV	hsv(237, 72%, 77%)
CMYK	cmyk(72.1%, 69%, 0%, 22.7%)
CIE-LAB	lab(34.35, 42.66, -71.19)
CIE-LCH	lch(34.35, 82.99, 300.93°)
OKLab	oklab(45.18% 0.0096 -0.2059)
OKLCH	oklch(45.18% 0.206 272.7)
XYZ	xyz(13.3190, 8.1796, 53.6894)
Luminance	0.0818 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue Blue

#2242C7

ΔE00 2.48

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#373DC5 #C5BF37

analogous

#3784C5 #373DC5 #7837C5

triadic

#373DC5 #C5373D #3DC537

tetradic

#373DC5 #C53784 #C5BF37 #37C578

square

#373DC5 #C53784 #C5BF37 #37C578

split-complementary

#373DC5 #C57837 #84C537

monochromatic

#1C1F65 #2A2E95 #373DC5 #656AD4 #9598E1

Accessibility & contrast

On white

7.97

#373DC5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.64

#373DC5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #373DC5

7.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##373DC5	#FFFFFF	#000000	##FFFFFF
##373DC5	1.00	7.97	2.64	7.97
#FFFFFF	7.97	1.00	21.00	1.00
#000000	2.64	21.00	1.00	21.00
##FFFFFF	7.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058C9

Deuteranopia (green-blind)

#004AC2

Tritanopia (blue-blind)

#00627C

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #373dc5;
/* rgb */ color: rgb(55, 61, 197);
/* oklch */ color: oklch(45.2% 0.206 272.7);

Tailwind

colors: {
  custom: {
    50: '#8273d8',
    500: '#373dc5',
    950: '#000000',
  },
}

SCSS

$custom: #373dc5;
$custom-light: #8273d8;
$custom-dark: #000000;

JSON

{
  "hex": "#373dc5",
  "rgb": {
    "r": 55,
    "g": 61,
    "b": 197
  },
  "hsl": {
    "h": 237.465,
    "s": 56.349,
    "l": 49.412
  },
  "oklch": {
    "l": 0.45176,
    "c": 0.2061,
    "h": 272.7
  },
  "luminance": 0.08181
}

Semantic roles & 50–950 ramp

primary

#373DC5

secondary

#CDCA8B

accent

#D948E0

background

#F8F7FD

surface

#F0EDFB

border

#CBC8D4

text

#0C0815

muted

#7D7B83

Preview Lab

Preview with #373DC5

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

Preview Lab → · Contrast checker → · Palette generator →