#37278D#37278D

#37278D is a dark, vivid blue. Relative luminance 0.042; OKLCH L 36.3% C 0.159 H 282.2°. Best body text is #FFFFFF at 11.43:1 contrast (WCAG AA passes).

Color values

HEX	#37278D
RGB	rgb(55, 39, 141)
HSL	hsl(249, 57%, 35%)
HSV	hsv(249, 72%, 55%)
CMYK	cmyk(61%, 72.3%, 0%, 44.7%)
CIE-LAB	lab(24.28, 37.04, -54.04)
CIE-LCH	lch(24.28, 65.52, 304.43°)
OKLab	oklab(36.33% 0.0335 -0.1557)
OKLCH	oklch(36.33% 0.159 282.2)
XYZ	xyz(7.1073, 4.1859, 25.6276)
Luminance	0.0419 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37278D #7D8D27

analogous

#274A8D #37278D #6A278D

triadic

#37278D #8D3727 #278D37

tetradic

#37278D #8D274A #7D8D27 #278D6A

square

#37278D #8D274A #7D8D27 #278D6A

split-complementary

#37278D #8D6A27 #4A8D27

monochromatic

#120C2D #241A5D #37278D #4A34BD #6F5CD2

Accessibility & contrast

On white

11.43

#37278D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#37278D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37278D

11.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37278D	#FFFFFF	#000000	##FFFFFF
##37278D	1.00	11.43	1.84	11.43
#FFFFFF	11.43	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D90

Deuteranopia (green-blind)

#00368B

Tritanopia (blue-blind)

#004257

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #37278d;
/* rgb */ color: rgb(55, 39, 141);
/* oklch */ color: oklch(36.3% 0.159 282.2);

Tailwind

colors: {
  custom: {
    50: '#7863af',
    500: '#37278d',
    950: '#000000',
  },
}

SCSS

$custom: #37278d;
$custom-light: #7863af;
$custom-dark: #000000;

JSON

{
  "hex": "#37278d",
  "rgb": {
    "r": 55,
    "g": 39,
    "b": 141
  },
  "hsl": {
    "h": 249.412,
    "s": 56.667,
    "l": 35.294
  },
  "oklch": {
    "l": 0.36325,
    "c": 0.15928,
    "h": 282.2
  },
  "luminance": 0.04186
}

Semantic roles & 50–950 ramp

primary

#37278D

secondary

#A8B759

accent

#E048C8

background

#F7F5FA

surface

#EEEAF5

border

#C9C6CF

text

#0A0510

muted

#7C797F

Preview Lab

Preview with #37278D

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

Preview Lab → · Contrast checker → · Palette generator →