#37428C#37428C

#37428C is a dark, vivid blue. Relative luminance 0.066; OKLCH L 41.2% C 0.122 H 273.4°. Best body text is #FFFFFF at 9.05:1 contrast (WCAG AA passes).

Color values

HEX	#37428C
RGB	rgb(55, 66, 140)
HSL	hsl(232, 44%, 38%)
HSV	hsv(232, 61%, 55%)
CMYK	cmyk(60.7%, 52.9%, 0%, 45.1%)
CIE-LAB	lab(30.88, 19.36, -42.68)
CIE-LCH	lch(30.88, 46.87, 294.39°)
OKLab	oklab(41.16% 0.0073 -0.1222)
OKLCH	oklch(41.16% 0.122 273.4)
XYZ	xyz(8.2558, 6.6015, 25.6450)
Luminance	0.0660 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37428C #8C8137

analogous

#376C8C #37428C #56378C

triadic

#37428C #8C3742 #428C37

tetradic

#37428C #8C376C #8C8137 #378C56

square

#37428C #8C376C #8C8137 #378C56

split-complementary

#37428C #8C5637 #6C8C37

monochromatic

#141934 #262D60 #37428C #4957B7 #7580C9

Accessibility & contrast

On white

9.05

#37428C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.32

#37428C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37428C

9.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37428C	#FFFFFF	#000000	##FFFFFF
##37428C	1.00	9.05	2.32	9.05
#FFFFFF	9.05	1.00	21.00	1.00
#000000	2.32	21.00	1.00	21.00
##FFFFFF	9.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#194C8F

Deuteranopia (green-blind)

#04458A

Tritanopia (blue-blind)

#005360

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #37428c;
/* rgb */ color: rgb(55, 66, 140);
/* oklch */ color: oklch(41.2% 0.122 273.4);

Tailwind

colors: {
  custom: {
    50: '#7676ae',
    500: '#37428c',
    950: '#000000',
  },
}

SCSS

$custom: #37428c;
$custom-light: #7676ae;
$custom-dark: #000000;

JSON

{
  "hex": "#37428c",
  "rgb": {
    "r": 55,
    "g": 66,
    "b": 140
  },
  "hsl": {
    "h": 232.235,
    "s": 43.59,
    "l": 38.235
  },
  "oklch": {
    "l": 0.41157,
    "c": 0.1224,
    "h": 273.4
  },
  "luminance": 0.06602
}

Semantic roles & 50–950 ramp

primary

#37428C

secondary

#B1A96D

accent

#C354D3

background

#F7F7FA

surface

#EDEDF4

border

#C8C8CE

text

#090810

muted

#7B7B7F

Preview Lab

Preview with #37428C

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

Preview Lab → · Contrast checker → · Palette generator →