#373BBD#373BBD

#373BBD is a dark, vivid blue. Relative luminance 0.076; OKLCH L 44.1% C 0.198 H 273.4°. Best body text is #FFFFFF at 8.32:1 contrast (WCAG AA passes).

Color values

HEX	#373BBD
RGB	rgb(55, 59, 189)
HSL	hsl(238, 55%, 48%)
HSV	hsv(238, 71%, 74%)
CMYK	cmyk(70.9%, 68.8%, 0%, 25.9%)
CIE-LAB	lab(33.16, 41.14, -68.45)
CIE-LCH	lch(33.16, 79.86, 301.01°)
OKLab	oklab(44.09% 0.0118 -0.1979)
OKLCH	oklch(44.09% 0.198 273.4)
XYZ	xyz(12.3218, 7.6131, 48.9544)
Luminance	0.0761 (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

#373BBD #BDB937

analogous

#377EBD #373BBD #7637BD

triadic

#373BBD #BD373B #3BBD37

tetradic

#373BBD #BD377E #BDB937 #37BD76

square

#373BBD #BD377E #BDB937 #37BD76

split-complementary

#373BBD #BD7637 #7EBD37

monochromatic

#1B1D5E #292C8E #373BBD #6064D1 #9092DF

Accessibility & contrast

On white

8.32

#373BBD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.52

#373BBD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #373BBD

8.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##373BBD	#FFFFFF	#000000	##FFFFFF
##373BBD	1.00	8.32	2.52	8.32
#FFFFFF	8.32	1.00	21.00	1.00
#000000	2.52	21.00	1.00	21.00
##FFFFFF	8.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054C1

Deuteranopia (green-blind)

#0048BB

Tritanopia (blue-blind)

#005E77

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #373bbd;
/* rgb */ color: rgb(55, 59, 189);
/* oklch */ color: oklch(44.1% 0.198 273.4);

Tailwind

colors: {
  custom: {
    50: '#8172d2',
    500: '#373bbd',
    950: '#000000',
  },
}

SCSS

$custom: #373bbd;
$custom-light: #8172d2;
$custom-dark: #000000;

JSON

{
  "hex": "#373bbd",
  "rgb": {
    "r": 55,
    "g": 59,
    "b": 189
  },
  "hsl": {
    "h": 238.209,
    "s": 54.918,
    "l": 47.843
  },
  "oklch": {
    "l": 0.44089,
    "c": 0.19823,
    "h": 273.4
  },
  "luminance": 0.07614
}

Semantic roles & 50–950 ramp

primary

#373BBD

secondary

#C9C786

accent

#DA4ADE

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #373BBD

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

Preview Lab → · Contrast checker → · Palette generator →