#37479A#37479A

#37479A is a dark, vivid blue. Relative luminance 0.077; OKLCH L 43.3% C 0.136 H 271.4°. Best body text is #FFFFFF at 8.30:1 contrast (WCAG AA passes).

Color values

HEX	#37479A
RGB	rgb(55, 71, 154)
HSL	hsl(230, 47%, 41%)
HSV	hsv(230, 64%, 60%)
CMYK	cmyk(64.3%, 53.9%, 0%, 39.6%)
CIE-LAB	lab(33.25, 21.07, -47.42)
CIE-LCH	lch(33.25, 51.89, 293.96°)
OKLab	oklab(43.25% 0.0033 -0.136)
OKLCH	oklch(43.25% 0.136 271.4)
XYZ	xyz(9.6596, 7.6510, 31.5333)
Luminance	0.0765 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37479A #9A8A37

analogous

#37789A #37479A #58379A

triadic

#37479A #9A3747 #479A37

tetradic

#37479A #9A3778 #9A8A37 #379A58

square

#37479A #9A3778 #9A8A37 #379A58

split-complementary

#37479A #9A5837 #789A37

monochromatic

#171D40 #27326D #37479A #4E61C0 #7B89D0

Accessibility & contrast

On white

8.30

#37479A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.53

#37479A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37479A

8.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37479A	#FFFFFF	#000000	##FFFFFF
##37479A	1.00	8.30	2.53	8.30
#FFFFFF	8.30	1.00	21.00	1.00
#000000	2.53	21.00	1.00	21.00
##FFFFFF	8.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#12539D

Deuteranopia (green-blind)

#004A98

Tritanopia (blue-blind)

#005A69

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #37479a;
/* rgb */ color: rgb(55, 71, 154);
/* oklch */ color: oklch(43.3% 0.136 271.4);

Tailwind

colors: {
  custom: {
    50: '#7879b8',
    500: '#37479a',
    950: '#000000',
  },
}

SCSS

$custom: #37479a;
$custom-light: #7879b8;
$custom-dark: #000000;

JSON

{
  "hex": "#37479a",
  "rgb": {
    "r": 55,
    "g": 71,
    "b": 154
  },
  "hsl": {
    "h": 230.303,
    "s": 47.368,
    "l": 40.98
  },
  "oklch": {
    "l": 0.43253,
    "c": 0.13609,
    "h": 271.4
  },
  "luminance": 0.07652
}

Semantic roles & 50–950 ramp

primary

#37479A

secondary

#B9AE74

accent

#C151D7

background

#F7F7FB

surface

#EEEDF6

border

#C9C8D0

text

#0A0911

muted

#7C7B80

Preview Lab

Preview with #37479A

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

Preview Lab → · Contrast checker → · Palette generator →