#37289F#37289F

#37289F is a dark, vivid blue. Relative luminance 0.048; OKLCH L 38.3% C 0.181 H 279.2°. Best body text is #FFFFFF at 10.68:1 contrast (WCAG AA passes).

Color values

HEX	#37289F
RGB	rgb(55, 40, 159)
HSL	hsl(248, 60%, 39%)
HSV	hsv(248, 75%, 62%)
CMYK	cmyk(65.4%, 74.8%, 0%, 37.6%)
CIE-LAB	lab(26.25, 42.27, -61.87)
CIE-LCH	lch(26.25, 74.93, 304.34°)
OKLab	oklab(38.27% 0.029 -0.1786)
OKLCH	oklch(38.27% 0.181 279.2)
XYZ	xyz(8.5903, 4.8323, 33.2742)
Luminance	0.0483 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37289F #909F28

analogous

#28559F #37289F #73289F

triadic

#37289F #9F3728 #289F37

tetradic

#37289F #9F2855 #909F28 #289F73

square

#37289F #9F2855 #909F28 #289F73

split-complementary

#37289F #9F7328 #559F28

monochromatic

#150F3D #261C6E #37289F #4A37CD #7768D9

Accessibility & contrast

On white

10.68

#37289F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.97

#37289F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37289F

10.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37289F	#FFFFFF	#000000	##FFFFFF
##37289F	1.00	10.68	1.97	10.68
#FFFFFF	10.68	1.00	21.00	1.00
#000000	1.97	21.00	1.00	21.00
##FFFFFF	10.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0043A2

Deuteranopia (green-blind)

#00399D

Tritanopia (blue-blind)

#004A61

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #37289f;
/* rgb */ color: rgb(55, 40, 159);
/* oklch */ color: oklch(38.3% 0.181 279.2);

Tailwind

colors: {
  custom: {
    50: '#7c64bd',
    500: '#37289f',
    950: '#000000',
  },
}

SCSS

$custom: #37289f;
$custom-light: #7c64bd;
$custom-dark: #000000;

JSON

{
  "hex": "#37289f",
  "rgb": {
    "r": 55,
    "g": 40,
    "b": 159
  },
  "hsl": {
    "h": 247.563,
    "s": 59.799,
    "l": 39.02
  },
  "oklch": {
    "l": 0.38265,
    "c": 0.18093,
    "h": 279.2
  },
  "luminance": 0.04833
}

Semantic roles & 50–950 ramp

primary

#37289F

secondary

#B4BF64

accent

#E345CF

background

#F8F6FB

surface

#EFEBF7

border

#CAC6D0

text

#0B0512

muted

#7C7A81

Preview Lab

Preview with #37289F

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

Preview Lab → · Contrast checker → · Palette generator →