#373CBF#373CBF

#373CBF is a dark, vivid blue. Relative luminance 0.078; OKLCH L 44.4% C 0.200 H 273.1°. Best body text is #FFFFFF at 8.20:1 contrast (WCAG AA passes).

Color values

HEX	#373CBF
RGB	rgb(55, 60, 191)
HSL	hsl(238, 55%, 48%)
HSV	hsv(238, 71%, 75%)
CMYK	cmyk(71.2%, 68.6%, 0%, 25.1%)
CIE-LAB	lab(33.57, 41.22, -68.96)
CIE-LCH	lch(33.57, 80.34, 300.87°)
OKLab	oklab(44.44% 0.011 -0.1994)
OKLCH	oklch(44.44% 0.2 273.1)
XYZ	xyz(12.5922, 7.8043, 50.1229)
Luminance	0.0781 (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

#373CBF #BFBA37

analogous

#3780BF #373CBF #7637BF

triadic

#373CBF #BF373C #3CBF37

tetradic

#373CBF #BF3780 #BFBA37 #37BF76

square

#373CBF #BF3780 #BFBA37 #37BF76

split-complementary

#373CBF #BF7637 #80BF37

monochromatic

#1C1E60 #292D8F #373CBF #6266D2 #9194DF

Accessibility & contrast

On white

8.20

#373CBF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.56

#373CBF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #373CBF

8.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##373CBF	#FFFFFF	#000000	##FFFFFF
##373CBF	1.00	8.20	2.56	8.20
#FFFFFF	8.20	1.00	21.00	1.00
#000000	2.56	21.00	1.00	21.00
##FFFFFF	8.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055C3

Deuteranopia (green-blind)

#0049BD

Tritanopia (blue-blind)

#006079

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #373cbf;
/* rgb */ color: rgb(55, 60, 191);
/* oklch */ color: oklch(44.4% 0.200 273.1);

Tailwind

colors: {
  custom: {
    50: '#8172d3',
    500: '#373cbf',
    950: '#000000',
  },
}

SCSS

$custom: #373cbf;
$custom-light: #8172d3;
$custom-dark: #000000;

JSON

{
  "hex": "#373cbf",
  "rgb": {
    "r": 55,
    "g": 60,
    "b": 191
  },
  "hsl": {
    "h": 237.794,
    "s": 55.285,
    "l": 48.235
  },
  "oklch": {
    "l": 0.44441,
    "c": 0.19966,
    "h": 273.1
  },
  "luminance": 0.07806
}

Semantic roles & 50–950 ramp

primary

#373CBF

secondary

#CAC888

accent

#D949DF

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #373CBF

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

Preview Lab → · Contrast checker → · Palette generator →