#373789#373789

#373789 is a dark, vivid blue. Relative luminance 0.054; OKLCH L 38.7% C 0.133 H 278.2°. Best body text is #FFFFFF at 10.14:1 contrast (WCAG AA passes).

Color values

HEX	#373789
RGB	rgb(55, 55, 137)
HSL	hsl(240, 43%, 38%)
HSV	hsv(240, 60%, 54%)
CMYK	cmyk(59.9%, 59.9%, 0%, 46.3%)
CIE-LAB	lab(27.71, 25.63, -45.96)
CIE-LCH	lch(27.71, 52.62, 299.15°)
OKLab	oklab(38.72% 0.019 -0.1319)
OKLCH	oklch(38.72% 0.133 278.2)
XYZ	xyz(7.4557, 5.3502, 24.3019)
Luminance	0.0535 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#373789 #898937

analogous

#376089 #373789 #603789

triadic

#373789 #893737 #378937

tetradic

#373789 #893760 #898937 #378960

square

#373789 #893760 #898937 #378960

split-complementary

#373789 #896037 #608937

monochromatic

#141432 #25255D #373789 #4949B5 #7373C7

Accessibility & contrast

On white

10.14

#373789 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.07

#373789 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #373789

10.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##373789	#FFFFFF	#000000	##FFFFFF
##373789	1.00	10.14	2.07	10.14
#FFFFFF	10.14	1.00	21.00	1.00
#000000	2.07	21.00	1.00	21.00
##FFFFFF	10.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00458C

Deuteranopia (green-blind)

#003E87

Tritanopia (blue-blind)

#014B5A

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #373789;
/* rgb */ color: rgb(55, 55, 137);
/* oklch */ color: oklch(38.7% 0.133 278.2);

Tailwind

colors: {
  custom: {
    50: '#766eac',
    500: '#373789',
    950: '#000000',
  },
}

SCSS

$custom: #373789;
$custom-light: #766eac;
$custom-dark: #000000;

JSON

{
  "hex": "#373789",
  "rgb": {
    "r": 55,
    "g": 55,
    "b": 137
  },
  "hsl": {
    "h": 240,
    "s": 42.708,
    "l": 37.647
  },
  "oklch": {
    "l": 0.38716,
    "c": 0.13328,
    "h": 278.2
  },
  "luminance": 0.05351
}

Semantic roles & 50–950 ramp

primary

#373789

secondary

#B0B06C

accent

#D255D2

background

#F7F6FA

surface

#EEEBF4

border

#C9C6CE

text

#090710

muted

#7B7A7F

Preview Lab

Preview with #373789

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

Preview Lab → · Contrast checker → · Palette generator →