#1B012A#1B012A

#1B012A is a very dark, moderate violet. Relative luminance 0.004; OKLCH L 17.3% C 0.083 H 310.3°. Best body text is #FFFFFF at 19.37:1 contrast (WCAG AA passes).

Color values

HEX	#1B012A
RGB	rgb(27, 1, 42)
HSL	hsl(278, 95%, 8%)
HSV	hsv(278, 98%, 16%)
CMYK	cmyk(35.7%, 97.6%, 0%, 83.5%)
CIE-LAB	lab(3.81, 19.63, -20.52)
CIE-LCH	lch(3.81, 28.40, 313.72°)
OKLab	oklab(17.28% 0.0538 -0.0636)
OKLCH	oklch(17.28% 0.083 310.3)
XYZ	xyz(0.8807, 0.4219, 2.2251)
Luminance	0.0042 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B012A #102A01

analogous

#06012A #1B012A #2A0124

triadic

#1B012A #2A1B01 #012A1B

tetradic

#1B012A #2A0601 #102A01 #01242A

square

#1B012A #2A0601 #102A01 #01242A

split-complementary

#1B012A #242A01 #012A06

monochromatic

#13011E #13011E #1B012A #410266 #6804A2

Accessibility & contrast

On white

19.37

#1B012A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.08

#1B012A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B012A

19.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B012A	#FFFFFF	#000000	##FFFFFF
##1B012A	1.00	19.37	1.08	19.37
#FFFFFF	19.37	1.00	21.00	1.00
#000000	1.08	21.00	1.00	21.00
##FFFFFF	19.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000C2B

Deuteranopia (green-blind)

#000E29

Tritanopia (blue-blind)

#190915

Achromatopsia (no color)

#0E0E0E

Design tokens & code

CSS

--color: #1b012a;
/* rgb */ color: rgb(27, 1, 42);
/* oklch */ color: oklch(17.3% 0.083 310.3);

Tailwind

colors: {
  custom: {
    50: '#584664',
    500: '#1b012a',
    950: '#000000',
  },
}

SCSS

$custom: #1b012a;
$custom-light: #584664;
$custom-dark: #000000;

JSON

{
  "hex": "#1b012a",
  "rgb": {
    "r": 27,
    "g": 1,
    "b": 42
  },
  "hsl": {
    "h": 278.049,
    "s": 95.349,
    "l": 8.431
  },
  "oklch": {
    "l": 0.1728,
    "c": 0.08329,
    "h": 310.3
  },
  "luminance": 0.00422
}

Semantic roles & 50–950 ramp

primary

#1B012A

secondary

#377016

accent

#FF2977

background

#F5F3F5

surface

#E9E5EA

border

#C5C1C6

text

#030005

muted

#787779

Preview Lab

Preview with #1B012A

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

Preview Lab → · Contrast checker → · Palette generator →