#37478C#37478C

#37478C is a dark, moderate blue. Relative luminance 0.072; OKLCH L 42.2% C 0.116 H 270.9°. Best body text is #FFFFFF at 8.60:1 contrast (WCAG AA passes).

Color values

HEX	#37478C
RGB	rgb(55, 71, 140)
HSL	hsl(229, 44%, 38%)
HSV	hsv(229, 61%, 55%)
CMYK	cmyk(60.7%, 49.3%, 0%, 45.1%)
CIE-LAB	lab(32.28, 16.01, -40.43)
CIE-LCH	lch(32.28, 43.48, 291.60°)
OKLab	oklab(42.22% 0.0018 -0.1155)
OKLCH	oklch(42.22% 0.116 270.9)
XYZ	xyz(8.5608, 7.2115, 25.7467)
Luminance	0.0721 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37478C #8C7C37

analogous

#37718C #37478C #51378C

triadic

#37478C #8C3747 #478C37

tetradic

#37478C #8C3771 #8C7C37 #378C51

square

#37478C #8C3771 #8C7C37 #378C51

split-complementary

#37478C #8C5137 #718C37

monochromatic

#141A34 #263160 #37478C #495EB7 #7585C9

Accessibility & contrast

On white

8.60

#37478C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.44

#37478C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37478C

8.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37478C	#FFFFFF	#000000	##FFFFFF
##37478C	1.00	8.60	2.44	8.60
#FFFFFF	8.60	1.00	21.00	1.00
#000000	2.44	21.00	1.00	21.00
##FFFFFF	8.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#25508F

Deuteranopia (green-blind)

#17488B

Tritanopia (blue-blind)

#005762

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #37478c;
/* rgb */ color: rgb(55, 71, 140);
/* oklch */ color: oklch(42.2% 0.116 270.9);

Tailwind

colors: {
  custom: {
    50: '#7679ae',
    500: '#37478c',
    950: '#000000',
  },
}

SCSS

$custom: #37478c;
$custom-light: #7679ae;
$custom-dark: #000000;

JSON

{
  "hex": "#37478c",
  "rgb": {
    "r": 55,
    "g": 71,
    "b": 140
  },
  "hsl": {
    "h": 228.706,
    "s": 43.59,
    "l": 38.235
  },
  "oklch": {
    "l": 0.42218,
    "c": 0.1155,
    "h": 270.9
  },
  "luminance": 0.07212
}

Semantic roles & 50–950 ramp

primary

#37478C

secondary

#B1A56D

accent

#BB54D3

background

#F7F7FA

surface

#EDEDF4

border

#C8C8CE

text

#090910

muted

#7B7B7F

Preview Lab

Preview with #37478C

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

Preview Lab → · Contrast checker → · Palette generator →