#1B0347#1B0347

#1B0347 is a very dark, moderate violet. Relative luminance 0.008; OKLCH L 21.0% C 0.113 H 289.1°. Best body text is #FFFFFF at 18.25:1 contrast (WCAG AA passes).

Color values

HEX	#1B0347
RGB	rgb(27, 3, 71)
HSL	hsl(261, 92%, 15%)
HSV	hsv(261, 96%, 28%)
CMYK	cmyk(62%, 95.8%, 0%, 72.2%)
CIE-LAB	lab(6.80, 30.43, -36.88)
CIE-LCH	lch(6.80, 47.81, 309.53°)
OKLab	oklab(21.04% 0.0368 -0.1064)
OKLCH	oklch(21.04% 0.113 289.1)
XYZ	xyz(1.6216, 0.7530, 6.0199)
Luminance	0.0075 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B0347 #2F4703

analogous

#030D47 #1B0347 #3D0347

triadic

#1B0347 #471B03 #03471B

tetradic

#1B0347 #47030D #2F4703 #03473D

square

#1B0347 #47030D #2F4703 #03473D

split-complementary

#1B0347 #473D03 #0D4703

monochromatic

#0B011D #0B011D #1B0347 #310582 #4808BC

Accessibility & contrast

On white

18.25

#1B0347 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.15

#1B0347 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B0347

18.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B0347	#FFFFFF	#000000	##FFFFFF
##1B0347	1.00	18.25	1.15	18.25
#FFFFFF	18.25	1.00	21.00	1.00
#000000	1.15	21.00	1.00	21.00
##FFFFFF	18.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001649

Deuteranopia (green-blind)

#001346

Tritanopia (blue-blind)

#081826

Achromatopsia (no color)

#151515

Design tokens & code

CSS

--color: #1b0347;
/* rgb */ color: rgb(27, 3, 71);
/* oklch */ color: oklch(21.0% 0.113 289.1);

Tailwind

colors: {
  custom: {
    50: '#5f477b',
    500: '#1b0347',
    950: '#000000',
  },
}

SCSS

$custom: #1b0347;
$custom-light: #5f477b;
$custom-dark: #000000;

JSON

{
  "hex": "#1b0347",
  "rgb": {
    "r": 27,
    "g": 3,
    "b": 71
  },
  "hsl": {
    "h": 261.176,
    "s": 91.892,
    "l": 14.51
  },
  "oklch": {
    "l": 0.21043,
    "c": 0.11263,
    "h": 289.1
  },
  "luminance": 0.00753
}

Semantic roles & 50–950 ramp

primary

#1B0347

secondary

#63881E

accent

#FF29B3

background

#F5F4F7

surface

#EAE6EE

border

#C6C2C9

text

#050009

muted

#79777B

Preview Lab

Preview with #1B0347

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

Preview Lab → · Contrast checker → · Palette generator →