#1B002B#1B002B

#1B002B is a very dark, moderate violet. Relative luminance 0.004; OKLCH L 17.2% C 0.087 H 309.8°. Best body text is #FFFFFF at 19.42:1 contrast (WCAG AA passes).

Color values

HEX	#1B002B
RGB	rgb(27, 0, 43)
HSL	hsl(278, 100%, 8%)
HSV	hsv(278, 100%, 17%)
CMYK	cmyk(37.2%, 100%, 0%, 83.1%)
CIE-LAB	lab(3.68, 20.48, -21.49)
CIE-LCH	lch(3.68, 29.69, 313.62°)
OKLab	oklab(17.17% 0.0556 -0.0668)
OKLCH	oklch(17.17% 0.087 309.8)
XYZ	xyz(0.8880, 0.4074, 2.3169)
Luminance	0.0041 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B002B #102B00

analogous

#05002B #1B002B #2B0025

triadic

#1B002B #2B1B00 #002B1B

tetradic

#1B002B #2B0500 #102B00 #00252B

square

#1B002B #2B0500 #102B00 #00252B

split-complementary

#1B002B #252B00 #002B05

monochromatic

#13001F #13001F #1B002B #410068 #6800A5

Accessibility & contrast

On white

19.42

#1B002B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.08

#1B002B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B002B

19.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B002B	#FFFFFF	#000000	##FFFFFF
##1B002B	1.00	19.42	1.08	19.42
#FFFFFF	19.42	1.00	21.00	1.00
#000000	1.08	21.00	1.00	21.00
##FFFFFF	19.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000C2C

Deuteranopia (green-blind)

#000E2A

Tritanopia (blue-blind)

#190915

Achromatopsia (no color)

#0D0D0D

Design tokens & code

CSS

--color: #1b002b;
/* rgb */ color: rgb(27, 0, 43);
/* oklch */ color: oklch(17.2% 0.087 309.8);

Tailwind

colors: {
  custom: {
    50: '#584664',
    500: '#1b002b',
    950: '#000000',
  },
}

SCSS

$custom: #1b002b;
$custom-light: #584664;
$custom-dark: #000000;

JSON

{
  "hex": "#1b002b",
  "rgb": {
    "r": 27,
    "g": 0,
    "b": 43
  },
  "hsl": {
    "h": 277.674,
    "s": 100,
    "l": 8.431
  },
  "oklch": {
    "l": 0.17165,
    "c": 0.08692,
    "h": 309.8
  },
  "luminance": 0.00407
}

Semantic roles & 50–950 ramp

primary

#1B002B

secondary

#377314

accent

#FF2979

background

#F5F3F6

surface

#E9E5EB

border

#C5C1C6

text

#030005

muted

#78777A

Preview Lab

Preview with #1B002B

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

Preview Lab → · Contrast checker → · Palette generator →