#373BBE#373BBE

#373BBE is a dark, vivid blue. Relative luminance 0.077; OKLCH L 44.2% C 0.199 H 273.4°. Best body text is #FFFFFF at 8.30:1 contrast (WCAG AA passes).

Color values

HEX	#373BBE
RGB	rgb(55, 59, 190)
HSL	hsl(238, 55%, 48%)
HSV	hsv(238, 71%, 75%)
CMYK	cmyk(71.1%, 68.9%, 0%, 25.5%)
CIE-LAB	lab(33.26, 41.48, -68.89)
CIE-LCH	lch(33.26, 80.41, 301.06°)
OKLab	oklab(44.19% 0.0117 -0.1991)
OKLCH	oklch(44.19% 0.199 273.4)
XYZ	xyz(12.4307, 7.6566, 49.5280)
Luminance	0.0766 (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

#373BBE #BEBA37

analogous

#377EBE #373BBE #7637BE

triadic

#373BBE #BE373B #3BBE37

tetradic

#373BBE #BE377E #BEBA37 #37BE76

square

#373BBE #BE377E #BEBA37 #37BE76

split-complementary

#373BBE #BE7637 #7EBE37

monochromatic

#1C1E5F #292C8F #373BBE #6164D1 #9093DF

Accessibility & contrast

On white

8.30

#373BBE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.53

#373BBE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #373BBE

8.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##373BBE	#FFFFFF	#000000	##FFFFFF
##373BBE	1.00	8.30	2.53	8.30
#FFFFFF	8.30	1.00	21.00	1.00
#000000	2.53	21.00	1.00	21.00
##FFFFFF	8.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055C2

Deuteranopia (green-blind)

#0048BC

Tritanopia (blue-blind)

#005F78

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #373bbe;
/* rgb */ color: rgb(55, 59, 190);
/* oklch */ color: oklch(44.2% 0.199 273.4);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#373bbe",
  "rgb": {
    "r": 55,
    "g": 59,
    "b": 190
  },
  "hsl": {
    "h": 238.222,
    "s": 55.102,
    "l": 48.039
  },
  "oklch": {
    "l": 0.44185,
    "c": 0.19949,
    "h": 273.4
  },
  "luminance": 0.07658
}

Semantic roles & 50–950 ramp

primary

#373BBE

secondary

#CAC887

accent

#DA49DE

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #373BBE

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

Preview Lab → · Contrast checker → · Palette generator →