#373DBF#373DBF

#373DBF is a dark, vivid blue. Relative luminance 0.079; OKLCH L 44.6% C 0.199 H 273.0°. Best body text is #FFFFFF at 8.13:1 contrast (WCAG AA passes).

Color values

HEX	#373DBF
RGB	rgb(55, 61, 191)
HSL	hsl(237, 55%, 48%)
HSV	hsv(237, 71%, 75%)
CMYK	cmyk(71.2%, 68.1%, 0%, 25.1%)
CIE-LAB	lab(33.80, 40.62, -68.59)
CIE-LCH	lch(33.80, 79.71, 300.63°)
OKLab	oklab(44.6% 0.0103 -0.1983)
OKLCH	oklch(44.6% 0.199 273)
XYZ	xyz(12.6451, 7.9101, 50.1405)
Luminance	0.0791 (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

#373DBF #BFB937

analogous

#3781BF #373DBF #7537BF

triadic

#373DBF #BF373D #3DBF37

tetradic

#373DBF #BF3781 #BFB937 #37BF75

square

#373DBF #BF3781 #BFB937 #37BF75

split-complementary

#373DBF #BF7537 #81BF37

monochromatic

#1C1F60 #292E8F #373DBF #6266D2 #9195DF

Accessibility & contrast

On white

8.13

#373DBF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.58

#373DBF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #373DBF

8.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##373DBF	#FFFFFF	#000000	##FFFFFF
##373DBF	1.00	8.13	2.58	8.13
#FFFFFF	8.13	1.00	21.00	1.00
#000000	2.58	21.00	1.00	21.00
##FFFFFF	8.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056C3

Deuteranopia (green-blind)

#0049BD

Tritanopia (blue-blind)

#006079

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #373dbf;
/* rgb */ color: rgb(55, 61, 191);
/* oklch */ color: oklch(44.6% 0.199 273.0);

Tailwind

colors: {
  custom: {
    50: '#8173d3',
    500: '#373dbf',
    950: '#000000',
  },
}

SCSS

$custom: #373dbf;
$custom-light: #8173d3;
$custom-dark: #000000;

JSON

{
  "hex": "#373dbf",
  "rgb": {
    "r": 55,
    "g": 61,
    "b": 191
  },
  "hsl": {
    "h": 237.353,
    "s": 55.285,
    "l": 48.235
  },
  "oklch": {
    "l": 0.44602,
    "c": 0.19856,
    "h": 273
  },
  "luminance": 0.07911
}

Semantic roles & 50–950 ramp

primary

#373DBF

secondary

#CAC788

accent

#D849DF

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #373DBF

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

Preview Lab → · Contrast checker → · Palette generator →