#1B022A#1B022A

#1B022A is a very dark, moderate violet. Relative luminance 0.004; OKLCH L 17.5% C 0.081 H 309.8°. Best body text is #FFFFFF at 19.29:1 contrast (WCAG AA passes).

Color values

HEX	#1B022A
RGB	rgb(27, 2, 42)
HSL	hsl(278, 91%, 9%)
HSV	hsv(278, 95%, 16%)
CMYK	cmyk(35.7%, 95.2%, 0%, 83.5%)
CIE-LAB	lab(4.01, 19.21, -20.21)
CIE-LCH	lch(4.01, 27.89, 313.54°)
OKLab	oklab(17.5% 0.0517 -0.0621)
OKLCH	oklch(17.5% 0.081 309.8)
XYZ	xyz(0.8915, 0.4436, 2.2287)
Luminance	0.0044 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B022A #112A02

analogous

#07022A #1B022A #2A0225

triadic

#1B022A #2A1B02 #022A1B

tetradic

#1B022A #2A0702 #112A02 #02252A

square

#1B022A #2A0702 #112A02 #02252A

split-complementary

#1B022A #252A02 #022A07

monochromatic

#13011D #13011D #1B022A #410564 #66089F

Accessibility & contrast

On white

19.29

#1B022A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.09

#1B022A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B022A

19.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B022A	#FFFFFF	#000000	##FFFFFF
##1B022A	1.00	19.29	1.09	19.29
#FFFFFF	19.29	1.00	21.00	1.00
#000000	1.09	21.00	1.00	21.00
##FFFFFF	19.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000D2B

Deuteranopia (green-blind)

#000E29

Tritanopia (blue-blind)

#190A15

Achromatopsia (no color)

#0E0E0E

Design tokens & code

CSS

--color: #1b022a;
/* rgb */ color: rgb(27, 2, 42);
/* oklch */ color: oklch(17.5% 0.081 309.8);

Tailwind

colors: {
  custom: {
    50: '#584764',
    500: '#1b022a',
    950: '#000000',
  },
}

SCSS

$custom: #1b022a;
$custom-light: #584764;
$custom-dark: #000000;

JSON

{
  "hex": "#1b022a",
  "rgb": {
    "r": 27,
    "g": 2,
    "b": 42
  },
  "hsl": {
    "h": 277.5,
    "s": 90.909,
    "l": 8.627
  },
  "oklch": {
    "l": 0.17498,
    "c": 0.08076,
    "h": 309.8
  },
  "luminance": 0.00444
}

Semantic roles & 50–950 ramp

primary

#1B022A

secondary

#396F19

accent

#FF2979

background

#F5F4F5

surface

#E9E6EA

border

#C5C2C6

text

#030005

muted

#787779

Preview Lab

Preview with #1B022A

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

Preview Lab → · Contrast checker → · Palette generator →