#280B40#280B40

#280B40 is a very dark, moderate violet. Relative luminance 0.011; OKLCH L 23.1% C 0.095 H 304.9°. Best body text is #FFFFFF at 17.32:1 contrast (WCAG AA passes).

Color values

HEX	#280B40
RGB	rgb(40, 11, 64)
HSL	hsl(273, 71%, 15%)
HSV	hsv(273, 83%, 25%)
CMYK	cmyk(37.5%, 82.8%, 0%, 74.9%)
CIE-LAB	lab(9.49, 26.32, -27.45)
CIE-LCH	lch(9.49, 38.03, 313.79°)
OKLab	oklab(23.15% 0.0545 -0.0781)
OKLCH	oklch(23.15% 0.095 304.9)
XYZ	xyz(1.9199, 1.0606, 4.9531)
Luminance	0.0106 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#280B40 #23400B

analogous

#0D0B40 #280B40 #400B3E

triadic

#280B40 #40280B #0B4028

tetradic

#280B40 #400D0B #23400B #0B3E40

square

#280B40 #400D0B #23400B #0B3E40

split-complementary

#280B40 #3E400B #0B400D

monochromatic

#10041A #10041A #280B40 #491474 #691DA8

Accessibility & contrast

On white

17.32

#280B40 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.21

#280B40 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #280B40

17.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##280B40	#FFFFFF	#000000	##FFFFFF
##280B40	1.00	17.32	1.21	17.32
#FFFFFF	17.32	1.00	21.00	1.00
#000000	1.21	21.00	1.00	21.00
##FFFFFF	17.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001A42

Deuteranopia (green-blind)

#001A3F

Tritanopia (blue-blind)

#231824

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #280b40;
/* rgb */ color: rgb(40, 11, 64);
/* oklch */ color: oklch(23.1% 0.095 304.9);

Tailwind

colors: {
  custom: {
    50: '#654d75',
    500: '#280b40',
    950: '#000000',
  },
}

SCSS

$custom: #280b40;
$custom-light: #654d75;
$custom-dark: #000000;

JSON

{
  "hex": "#280b40",
  "rgb": {
    "r": 40,
    "g": 11,
    "b": 64
  },
  "hsl": {
    "h": 272.83,
    "s": 70.667,
    "l": 14.706
  },
  "oklch": {
    "l": 0.23148,
    "c": 0.09522,
    "h": 304.9
  },
  "luminance": 0.01061
}

Semantic roles & 50–950 ramp

primary

#280B40

secondary

#507D2A

accent

#ED3A8B

background

#F6F4F7

surface

#EBE7ED

border

#C6C3C8

text

#060108

muted

#7A777B

Preview Lab

Preview with #280B40

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

Preview Lab → · Contrast checker → · Palette generator →