#373BB6#373BB6

#373BB6 is a dark, vivid blue. Relative luminance 0.073; OKLCH L 43.4% C 0.189 H 273.8°. Best body text is #FFFFFF at 8.52:1 contrast (WCAG AA passes).

Color values

HEX	#373BB6
RGB	rgb(55, 59, 182)
HSL	hsl(238, 54%, 46%)
HSV	hsv(238, 70%, 71%)
CMYK	cmyk(69.8%, 67.6%, 0%, 28.6%)
CIE-LAB	lab(32.52, 38.75, -65.38)
CIE-LCH	lch(32.52, 76.00, 300.65°)
OKLab	oklab(43.42% 0.0126 -0.1889)
OKLCH	oklch(43.42% 0.189 273.8)
XYZ	xyz(11.5802, 7.3165, 45.0488)
Luminance	0.0732 (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

#373BB6 #B6B237

analogous

#377BB6 #373BB6 #7337B6

triadic

#373BB6 #B6373B #3BB637

tetradic

#373BB6 #B6377B #B6B237 #37B673

square

#373BB6 #B6377B #B6B237 #37B673

split-complementary

#373BB6 #B67337 #7BB637

monochromatic

#1B1D58 #292C87 #373BB6 #5C60CE #8B8EDC

Accessibility & contrast

On white

8.52

#373BB6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.46

#373BB6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #373BB6

8.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##373BB6	#FFFFFF	#000000	##FFFFFF
##373BB6	1.00	8.52	2.46	8.52
#FFFFFF	8.52	1.00	21.00	1.00
#000000	2.46	21.00	1.00	21.00
##FFFFFF	8.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052BA

Deuteranopia (green-blind)

#0047B4

Tritanopia (blue-blind)

#005C73

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #373bb6;
/* rgb */ color: rgb(55, 59, 182);
/* oklch */ color: oklch(43.4% 0.189 273.8);

Tailwind

colors: {
  custom: {
    50: '#7f71cd',
    500: '#373bb6',
    950: '#000000',
  },
}

SCSS

$custom: #373bb6;
$custom-light: #7f71cd;
$custom-dark: #000000;

JSON

{
  "hex": "#373bb6",
  "rgb": {
    "r": 55,
    "g": 59,
    "b": 182
  },
  "hsl": {
    "h": 238.11,
    "s": 53.586,
    "l": 46.471
  },
  "oklch": {
    "l": 0.43424,
    "c": 0.18932,
    "h": 273.8
  },
  "luminance": 0.07318
}

Semantic roles & 50–950 ramp

primary

#373BB6

secondary

#C6C482

accent

#D84BDD

background

#F8F6FC

surface

#F0ECF9

border

#CBC7D2

text

#0B0814

muted

#7C7B82

Preview Lab

Preview with #373BB6

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

Preview Lab → · Contrast checker → · Palette generator →