#1B0C49#1B0C49

#1B0C49 is a very dark, moderate violet. Relative luminance 0.010; OKLCH L 22.5% C 0.105 H 285.7°. Best body text is #FFFFFF at 17.57:1 contrast (WCAG AA passes).

Color values

HEX#1B0C49
RGBrgb(27, 12, 73)
HSLhsl(255, 72%, 17%)
HSVhsv(255, 84%, 29%)
CMYKcmyk(63%, 83.6%, 0%, 71.4%)
CIE-LABlab(8.80, 26.04, -34.99)
CIE-LCHlch(8.80, 43.62, 306.65°)
OKLaboklab(22.54% 0.0283 -0.1008)
OKLCHoklch(22.54% 0.105 285.7)
XYZxyz(1.7857, 0.9769, 6.3965)
Luminance0.0098 (WCAG relative)
Temperaturecool
Familyviolet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#1B0C49 #3A490C
analogous
#0C1C49 #1B0C49 #3A0C49
triadic
#1B0C49 #491B0C #0C491B
tetradic
#1B0C49 #490C1C #3A490C #0C493A
square
#1B0C49 #490C1C #3A490C #0C493A
split-complementary
#1B0C49 #493A0C #1C490C
monochromatic
#0A041A #0A041A #1B0C49 #2E157E #421DB2

Accessibility & contrast

On white

17.57
#1B0C49 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.20
#1B0C49 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B0C49
17.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##1B0C49#FFFFFF#000000##FFFFFF
##1B0C491.0017.571.2017.57
#FFFFFF17.571.0021.001.00
#0000001.2021.001.0021.00
##FFFFFF17.571.0021.001.00

Color blindness preview

Protanopia (red-blind)
#001B4B
Deuteranopia (green-blind)
#001748
Tritanopia (blue-blind)
#051D2A
Achromatopsia (no color)
#191919

Design tokens & code

CSS
--color: #1b0c49;
/* rgb */ color: rgb(27, 12, 73);
/* oklch */ color: oklch(22.5% 0.105 285.7);
Tailwind
colors: {
  custom: {
    50: '#5e4c7c',
    500: '#1b0c49',
    950: '#000000',
  },
}
SCSS
$custom: #1b0c49;
$custom-light: #5e4c7c;
$custom-dark: #000000;
JSON
{
  "hex": "#1b0c49",
  "rgb": {
    "r": 27,
    "g": 12,
    "b": 73
  },
  "hsl": {
    "h": 254.754,
    "s": 71.765,
    "l": 16.667
  },
  "oklch": {
    "l": 0.22537,
    "c": 0.10466,
    "h": 285.7
  },
  "luminance": 0.00977
}

Semantic roles & 50–950 ramp

primary
#1B0C49
secondary
#6F852C
accent
#EE39C2
background
#F5F4F7
surface
#E9E7EE
border
#C5C3C9
text
#050109
muted
#79777B

Preview Lab

Preview with #1B0C49

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

Preview Lab → · Contrast checker → · Palette generator →

#1B0C49 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva