#373CBC#373CBC

#373CBC is a dark, vivid blue. Relative luminance 0.077; OKLCH L 44.2% C 0.196 H 273.3°. Best body text is #FFFFFF at 8.28:1 contrast (WCAG AA passes).

Color values

HEX	#373CBC
RGB	rgb(55, 60, 188)
HSL	hsl(238, 55%, 48%)
HSV	hsv(238, 71%, 74%)
CMYK	cmyk(70.7%, 68.1%, 0%, 26.3%)
CIE-LAB	lab(33.29, 40.20, -67.65)
CIE-LCH	lch(33.29, 78.69, 300.72°)
OKLab	oklab(44.16% 0.0113 -0.1955)
OKLCH	oklch(44.16% 0.196 273.3)
XYZ	xyz(12.2655, 7.6736, 48.4020)
Luminance	0.0767 (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

#373CBC #BCB737

analogous

#377FBC #373CBC #7437BC

triadic

#373CBC #BC373C #3CBC37

tetradic

#373CBC #BC377F #BCB737 #37BC74

square

#373CBC #BC377F #BCB737 #37BC74

split-complementary

#373CBC #BC7437 #7FBC37

monochromatic

#1B1E5D #292D8D #373CBC #6064D0 #8F92DE

Accessibility & contrast

On white

8.28

#373CBC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.53

#373CBC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #373CBC

8.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##373CBC	#FFFFFF	#000000	##FFFFFF
##373CBC	1.00	8.28	2.53	8.28
#FFFFFF	8.28	1.00	21.00	1.00
#000000	2.53	21.00	1.00	21.00
##FFFFFF	8.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055C0

Deuteranopia (green-blind)

#0048BA

Tritanopia (blue-blind)

#005F77

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #373cbc;
/* rgb */ color: rgb(55, 60, 188);
/* oklch */ color: oklch(44.2% 0.196 273.3);

Tailwind

colors: {
  custom: {
    50: '#8072d1',
    500: '#373cbc',
    950: '#000000',
  },
}

SCSS

$custom: #373cbc;
$custom-light: #8072d1;
$custom-dark: #000000;

JSON

{
  "hex": "#373cbc",
  "rgb": {
    "r": 55,
    "g": 60,
    "b": 188
  },
  "hsl": {
    "h": 237.744,
    "s": 54.733,
    "l": 47.647
  },
  "oklch": {
    "l": 0.44155,
    "c": 0.19587,
    "h": 273.3
  },
  "luminance": 0.07675
}

Semantic roles & 50–950 ramp

primary

#373CBC

secondary

#C9C686

accent

#D84ADE

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #373CBC

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

Preview Lab → · Contrast checker → · Palette generator →