#373FBF#373FBF

#373FBF is a dark, vivid blue. Relative luminance 0.081; OKLCH L 44.9% C 0.196 H 272.7°. Best body text is #FFFFFF at 8.00:1 contrast (WCAG AA passes).

Color values

HEX	#373FBF
RGB	rgb(55, 63, 191)
HSL	hsl(236, 55%, 48%)
HSV	hsv(236, 71%, 75%)
CMYK	cmyk(71.2%, 67%, 0%, 25.1%)
CIE-LAB	lab(34.25, 39.40, -67.85)
CIE-LCH	lch(34.25, 78.46, 300.14°)
OKLab	oklab(44.93% 0.0091 -0.1961)
OKLCH	oklch(44.93% 0.196 272.7)
XYZ	xyz(12.7539, 8.1276, 50.1767)
Luminance	0.0813 (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

#373FBF #BFB737

analogous

#3783BF #373FBF #7337BF

triadic

#373FBF #BF373F #3FBF37

tetradic

#373FBF #BF3783 #BFB737 #37BF73

square

#373FBF #BF3783 #BFB737 #37BF73

split-complementary

#373FBF #BF7337 #83BF37

monochromatic

#1C2060 #292F8F #373FBF #6268D2 #9196DF

Accessibility & contrast

On white

8.00

#373FBF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.63

#373FBF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #373FBF

8.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##373FBF	#FFFFFF	#000000	##FFFFFF
##373FBF	1.00	8.00	2.63	8.00
#FFFFFF	8.00	1.00	21.00	1.00
#000000	2.63	21.00	1.00	21.00
##FFFFFF	8.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057C3

Deuteranopia (green-blind)

#004ABD

Tritanopia (blue-blind)

#006179

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #373fbf;
/* rgb */ color: rgb(55, 63, 191);
/* oklch */ color: oklch(44.9% 0.196 272.7);

Tailwind

colors: {
  custom: {
    50: '#8174d3',
    500: '#373fbf',
    950: '#000000',
  },
}

SCSS

$custom: #373fbf;
$custom-light: #8174d3;
$custom-dark: #000000;

JSON

{
  "hex": "#373fbf",
  "rgb": {
    "r": 55,
    "g": 63,
    "b": 191
  },
  "hsl": {
    "h": 236.471,
    "s": 55.285,
    "l": 48.235
  },
  "oklch": {
    "l": 0.4493,
    "c": 0.19632,
    "h": 272.7
  },
  "luminance": 0.08129
}

Semantic roles & 50–950 ramp

primary

#373FBF

secondary

#CAC688

accent

#D649DF

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #373FBF

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

Preview Lab → · Contrast checker → · Palette generator →