#1B012C#1B012C

#1B012C is a very dark, moderate violet. Relative luminance 0.004; OKLCH L 17.5% C 0.085 H 308.3°. Best body text is #FFFFFF at 19.31:1 contrast (WCAG AA passes).

Color values

HEX	#1B012C
RGB	rgb(27, 1, 44)
HSL	hsl(276, 96%, 9%)
HSV	hsv(276, 98%, 17%)
CMYK	cmyk(38.6%, 97.7%, 0%, 82.7%)
CIE-LAB	lab(3.94, 20.49, -21.83)
CIE-LCH	lch(3.94, 29.94, 313.19°)
OKLab	oklab(17.49% 0.053 -0.067)
OKLCH	oklch(17.49% 0.085 308.3)
XYZ	xyz(0.9174, 0.4366, 2.4183)
Luminance	0.0044 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B012C #122C01

analogous

#06012C #1B012C #2C0128

triadic

#1B012C #2C1B01 #012C1B

tetradic

#1B012C #2C0601 #122C01 #01282C

square

#1B012C #2C0601 #122C01 #01282C

split-complementary

#1B012C #282C01 #012C06

monochromatic

#12011E #12011E #1B012C #400268 #6404A4

Accessibility & contrast

On white

19.31

#1B012C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.09

#1B012C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B012C

19.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B012C	#FFFFFF	#000000	##FFFFFF
##1B012C	1.00	19.31	1.09	19.31
#FFFFFF	19.31	1.00	21.00	1.00
#000000	1.09	21.00	1.00	21.00
##FFFFFF	19.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000D2D

Deuteranopia (green-blind)

#000E2B

Tritanopia (blue-blind)

#180A16

Achromatopsia (no color)

#0E0E0E

Design tokens & code

CSS

--color: #1b012c;
/* rgb */ color: rgb(27, 1, 44);
/* oklch */ color: oklch(17.5% 0.085 308.3);

Tailwind

colors: {
  custom: {
    50: '#584665',
    500: '#1b012c',
    950: '#000000',
  },
}

SCSS

$custom: #1b012c;
$custom-light: #584665;
$custom-dark: #000000;

JSON

{
  "hex": "#1b012c",
  "rgb": {
    "r": 27,
    "g": 1,
    "b": 44
  },
  "hsl": {
    "h": 276.279,
    "s": 95.556,
    "l": 8.824
  },
  "oklch": {
    "l": 0.17494,
    "c": 0.08541,
    "h": 308.3
  },
  "luminance": 0.00437
}

Semantic roles & 50–950 ramp

primary

#1B012C

secondary

#3B7217

accent

#FF297D

background

#F5F3F6

surface

#E9E5EB

border

#C5C1C6

text

#030005

muted

#78777A

Preview Lab

Preview with #1B012C

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

Preview Lab → · Contrast checker → · Palette generator →