#37429D#37429D

#37429D is a dark, vivid blue. Relative luminance 0.071; OKLCH L 42.5% C 0.147 H 273.2°. Best body text is #FFFFFF at 8.65:1 contrast (WCAG AA passes).

Color values

HEX	#37429D
RGB	rgb(55, 66, 157)
HSL	hsl(234, 48%, 42%)
HSV	hsv(234, 65%, 62%)
CMYK	cmyk(65%, 58%, 0%, 38.4%)
CIE-LAB	lab(32.13, 25.46, -51.04)
CIE-LCH	lch(32.13, 57.04, 296.51°)
OKLab	oklab(42.49% 0.0082 -0.1468)
OKLCH	oklch(42.49% 0.147 273.2)
XYZ	xyz(9.6075, 7.1422, 32.7640)
Luminance	0.0714 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37429D #9D9237

analogous

#37759D #37429D #5F379D

triadic

#37429D #9D3742 #429D37

tetradic

#37429D #9D3775 #9D9237 #379D5F

square

#37429D #9D3775 #9D9237 #379D5F

split-complementary

#37429D #9D5F37 #759D37

monochromatic

#171C42 #272F70 #37429D #505CC2 #7D86D1

Accessibility & contrast

On white

8.65

#37429D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.43

#37429D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37429D

8.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37429D	#FFFFFF	#000000	##FFFFFF
##37429D	1.00	8.65	2.43	8.65
#FFFFFF	8.65	1.00	21.00	1.00
#000000	2.43	21.00	1.00	21.00
##FFFFFF	8.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050A0

Deuteranopia (green-blind)

#00479B

Tritanopia (blue-blind)

#005869

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #37429d;
/* rgb */ color: rgb(55, 66, 157);
/* oklch */ color: oklch(42.5% 0.147 273.2);

Tailwind

colors: {
  custom: {
    50: '#7976bb',
    500: '#37429d',
    950: '#000000',
  },
}

SCSS

$custom: #37429d;
$custom-light: #7976bb;
$custom-dark: #000000;

JSON

{
  "hex": "#37429d",
  "rgb": {
    "r": 55,
    "g": 66,
    "b": 157
  },
  "hsl": {
    "h": 233.529,
    "s": 48.113,
    "l": 41.569
  },
  "oklch": {
    "l": 0.42487,
    "c": 0.14701,
    "h": 273.2
  },
  "luminance": 0.07143
}

Semantic roles & 50–950 ramp

primary

#37429D

secondary

#BBB375

accent

#C950D8

background

#F7F7FB

surface

#EEEDF6

border

#C9C8D0

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #37429D

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

Preview Lab → · Contrast checker → · Palette generator →