#280B3B#280B3B

#280B3B is a very dark, moderate violet. Relative luminance 0.010; OKLCH L 22.7% C 0.089 H 308.5°. Best body text is #FFFFFF at 17.48:1 contrast (WCAG AA passes).

Color values

HEX	#280B3B
RGB	rgb(40, 11, 59)
HSL	hsl(276, 69%, 14%)
HSV	hsv(276, 81%, 23%)
CMYK	cmyk(32.2%, 81.4%, 0%, 76.9%)
CIE-LAB	lab(9.04, 24.93, -24.60)
CIE-LCH	lch(9.04, 35.02, 315.39°)
OKLab	oklab(22.69% 0.0555 -0.0697)
OKLCH	oklch(22.69% 0.089 308.5)
XYZ	xyz(1.7840, 1.0063, 4.2371)
Luminance	0.0101 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#280B3B #1E3B0B

analogous

#100B3B #280B3B #3B0B36

triadic

#280B3B #3B280B #0B3B28

tetradic

#280B3B #3B100B #1E3B0B #0B363B

square

#280B3B #3B100B #1E3B0B #0B363B

split-complementary

#280B3B #363B0B #0B3B10

monochromatic

#11051A #11051A #280B3B #4B156F #6E1EA2

Accessibility & contrast

On white

17.48

#280B3B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.20

#280B3B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #280B3B

17.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##280B3B	#FFFFFF	#000000	##FFFFFF
##280B3B	1.00	17.48	1.20	17.48
#FFFFFF	17.48	1.00	21.00	1.00
#000000	1.20	21.00	1.00	21.00
##FFFFFF	17.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00183C

Deuteranopia (green-blind)

#021A3A

Tritanopia (blue-blind)

#251622

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #280b3b;
/* rgb */ color: rgb(40, 11, 59);
/* oklch */ color: oklch(22.7% 0.089 308.5);

Tailwind

colors: {
  custom: {
    50: '#644d71',
    500: '#280b3b',
    950: '#000000',
  },
}

SCSS

$custom: #280b3b;
$custom-light: #644d71;
$custom-dark: #000000;

JSON

{
  "hex": "#280b3b",
  "rgb": {
    "r": 40,
    "g": 11,
    "b": 59
  },
  "hsl": {
    "h": 276.25,
    "s": 68.571,
    "l": 13.725
  },
  "oklch": {
    "l": 0.22693,
    "c": 0.08907,
    "h": 308.5
  },
  "luminance": 0.01006
}

Semantic roles & 50–950 ramp

primary

#280B3B

secondary

#49782A

accent

#EB3C82

background

#F6F4F6

surface

#EBE7EC

border

#C6C3C7

text

#060108

muted

#7A777B

Preview Lab

Preview with #280B3B

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

Preview Lab → · Contrast checker → · Palette generator →