#37178E#37178E

#37178E is a dark, vivid violet. Relative luminance 0.034; OKLCH L 34.4% C 0.176 H 284.6°. Best body text is #FFFFFF at 12.53:1 contrast (WCAG AA passes).

Color values

HEX#37178E
RGBrgb(55, 23, 142)
HSLhsl(256, 72%, 32%)
HSVhsv(256, 84%, 56%)
CMYKcmyk(61.3%, 83.8%, 0%, 44.3%)
CIE-LABlab(21.50, 45.57, -59.24)
CIE-LCHlch(21.50, 74.74, 307.57°)
OKLaboklab(34.41% 0.0443 -0.1708)
OKLCHoklch(34.41% 0.176 284.6)
XYZxyz(6.7629, 3.3776, 25.8815)
Luminance0.0338 (WCAG relative)
Temperaturecool
Familyviolet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#37178E #6E8E17
analogous
#17338E #37178E #72178E
triadic
#37178E #8E3717 #178E37
tetradic
#37178E #8E1733 #6E8E17 #178E72
square
#37178E #8E1733 #6E8E17 #178E72
split-complementary
#37178E #8E7217 #338E17
monochromatic
#0E0625 #230E59 #37178E #4B20C3 #6B3FE0

Accessibility & contrast

On white

12.53
#37178E on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.68
#37178E on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37178E
12.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##37178E#FFFFFF#000000##FFFFFF
##37178E1.0012.531.6812.53
#FFFFFF12.531.0021.001.00
#0000001.6821.001.0021.00
##FFFFFF12.531.0021.001.00

Color blindness preview

Protanopia (red-blind)
#003791
Deuteranopia (green-blind)
#00308C
Tritanopia (blue-blind)
#003C54
Achromatopsia (no color)
#343434

Design tokens & code

CSS
--color: #37178e;
/* rgb */ color: rgb(55, 23, 142);
/* oklch */ color: oklch(34.4% 0.176 284.6);
Tailwind
colors: {
  custom: {
    50: '#7a5ab0',
    500: '#37178e',
    950: '#000000',
  },
}
SCSS
$custom: #37178e;
$custom-light: #7a5ab0;
$custom-dark: #000000;
JSON
{
  "hex": "#37178e",
  "rgb": {
    "r": 55,
    "g": 23,
    "b": 142
  },
  "hsl": {
    "h": 256.134,
    "s": 72.121,
    "l": 32.353
  },
  "oklch": {
    "l": 0.34406,
    "c": 0.17641,
    "h": 284.6
  },
  "luminance": 0.03378
}

Semantic roles & 50–950 ramp

primary
#37178E
secondary
#9EC040
accent
#EF39BE
background
#F8F5FB
surface
#EFE9F6
border
#CAC5D0
text
#0A0411
muted
#7C7980

Preview Lab

Preview with #37178E

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

Preview Lab → · Contrast checker → · Palette generator →

#37178E Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva