#1B0C55#1B0C55

#1B0C55 is a very dark, vivid violet. Relative luminance 0.012; OKLCH L 23.9% C 0.121 H 281.7°. Best body text is #FFFFFF at 17.07:1 contrast (WCAG AA passes).

Color values

HEX	#1B0C55
RGB	rgb(27, 12, 85)
HSL	hsl(252, 75%, 19%)
HSV	hsv(252, 86%, 33%)
CMYK	cmyk(68.2%, 85.9%, 0%, 66.7%)
CIE-LAB	lab(10.20, 30.07, -40.97)
CIE-LCH	lch(10.20, 50.82, 306.27°)
OKLab	oklab(23.93% 0.0244 -0.1182)
OKLCH	oklch(23.93% 0.121 281.7)
XYZ	xyz(2.2226, 1.1517, 8.6977)
Luminance	0.0115 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B0C55 #46550C

analogous

#0C2255 #1B0C55 #400C55

triadic

#1B0C55 #551B0C #0C551B

tetradic

#1B0C55 #550C22 #46550C #0C5540

square

#1B0C55 #550C22 #46550C #0C5540

split-complementary

#1B0C55 #55400C #22550C

monochromatic

#09041B #0A041F #1B0C55 #2C148B #3D1BC0

Accessibility & contrast

On white

17.07

#1B0C55 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.23

#1B0C55 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B0C55

17.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B0C55	#FFFFFF	#000000	##FFFFFF
##1B0C55	1.00	17.07	1.23	17.07
#FFFFFF	17.07	1.00	21.00	1.00
#000000	1.23	21.00	1.00	21.00
##FFFFFF	17.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001E57

Deuteranopia (green-blind)

#001954

Tritanopia (blue-blind)

#002231

Achromatopsia (no color)

#1C1C1C

Design tokens & code

CSS

--color: #1b0c55;
/* rgb */ color: rgb(27, 12, 85);
/* oklch */ color: oklch(23.9% 0.121 281.7);

Tailwind

colors: {
  custom: {
    50: '#614d86',
    500: '#1b0c55',
    950: '#000000',
  },
}

SCSS

$custom: #1b0c55;
$custom-light: #614d86;
$custom-dark: #000000;

JSON

{
  "hex": "#1b0c55",
  "rgb": {
    "r": 27,
    "g": 12,
    "b": 85
  },
  "hsl": {
    "h": 252.329,
    "s": 75.258,
    "l": 19.02
  },
  "oklch": {
    "l": 0.23933,
    "c": 0.1207,
    "h": 281.7
  },
  "luminance": 0.01152
}

Semantic roles & 50–950 ramp

primary

#1B0C55

secondary

#7C902D

accent

#F236CB

background

#F6F4F8

surface

#EBE7EF

border

#C6C3CA

text

#05010B

muted

#7A777C

Preview Lab

Preview with #1B0C55

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

Preview Lab → · Contrast checker → · Palette generator →