#1B0B47#1B0B47

#1B0B47 is a very dark, moderate violet. Relative luminance 0.009; OKLCH L 22.2% C 0.103 H 286.8°. Best body text is #FFFFFF at 17.72:1 contrast (WCAG AA passes).

Color values

HEX#1B0B47
RGBrgb(27, 11, 71)
HSLhsl(256, 73%, 16%)
HSVhsv(256, 85%, 28%)
CMYKcmyk(62%, 84.5%, 0%, 72.2%)
CIE-LABlab(8.37, 25.94, -34.30)
CIE-LCHlch(8.37, 43.00, 307.10°)
OKLaboklab(22.17% 0.0298 -0.0987)
OKLCHoklch(22.17% 0.103 286.8)
XYZxyz(1.7087, 0.9272, 6.0489)
Luminance0.0093 (WCAG relative)
Temperaturecool
Familyviolet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#1B0B47 #37470B
analogous
#0B1947 #1B0B47 #390B47
triadic
#1B0B47 #471B0B #0B471B
tetradic
#1B0B47 #470B19 #37470B #0B4739
square
#1B0B47 #470B19 #37470B #0B4739
split-complementary
#1B0B47 #47390B #19470B
monochromatic
#0A041A #0A041A #1B0B47 #2F137C #431BB1

Accessibility & contrast

On white

17.72
#1B0B47 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.19
#1B0B47 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B0B47
17.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##1B0B47#FFFFFF#000000##FFFFFF
##1B0B471.0017.721.1917.72
#FFFFFF17.721.0021.001.00
#0000001.1921.001.0021.00
##FFFFFF17.721.0021.001.00

Color blindness preview

Protanopia (red-blind)
#001A49
Deuteranopia (green-blind)
#001746
Tritanopia (blue-blind)
#071C28
Achromatopsia (no color)
#181818

Design tokens & code

CSS
--color: #1b0b47;
/* rgb */ color: rgb(27, 11, 71);
/* oklch */ color: oklch(22.2% 0.103 286.8);
Tailwind
colors: {
  custom: {
    50: '#5e4c7b',
    500: '#1b0b47',
    950: '#000000',
  },
}
SCSS
$custom: #1b0b47;
$custom-light: #5e4c7b;
$custom-dark: #000000;
JSON
{
  "hex": "#1b0b47",
  "rgb": {
    "r": 27,
    "g": 11,
    "b": 71
  },
  "hsl": {
    "h": 256,
    "s": 73.171,
    "l": 16.078
  },
  "oklch": {
    "l": 0.22169,
    "c": 0.10311,
    "h": 286.8
  },
  "luminance": 0.00927
}

Semantic roles & 50–950 ramp

primary
#1B0B47
secondary
#6C832A
accent
#F038BF
background
#F5F4F7
surface
#E9E7EE
border
#C5C3C9
text
#050109
muted
#79777B

Preview Lab

Preview with #1B0B47

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

Preview Lab → · Contrast checker → · Palette generator →

#1B0B47 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva