#280109#280109

#280109 is a very dark, moderate red. Relative luminance 0.005; OKLCH L 17.9% C 0.068 H 12.2°. Best body text is #FFFFFF at 19.12:1 contrast (WCAG AA passes).

Color values

HEX	#280109
RGB	rgb(40, 1, 9)
HSL	hsl(348, 95%, 8%)
HSV	hsv(348, 98%, 16%)
CMYK	cmyk(0%, 97.5%, 77.5%, 84.3%)
CIE-LAB	lab(4.45, 19.00, 3.32)
CIE-LCH	lch(4.45, 19.29, 9.92°)
OKLab	oklab(17.89% 0.0666 0.0144)
OKLCH	oklch(17.89% 0.068 12.2)
XYZ	xyz(0.9353, 0.4927, 0.3042)
Luminance	0.0049 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#280109 #012820

analogous

#28011C #280109 #280C01

triadic

#280109 #092801 #010928

tetradic

#280109 #1C2801 #012820 #0C0128

square

#280109 #1C2801 #012820 #0C0128

split-complementary

#280109 #01280C #011C28

monochromatic

#1E0107 #1E0107 #280109 #640216 #9F0424

Accessibility & contrast

On white

19.12

#280109 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.10

#280109 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #280109

19.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##280109	#FFFFFF	#000000	##FFFFFF
##280109	1.00	19.12	1.10	19.12
#FFFFFF	19.12	1.00	21.00	1.00
#000000	1.10	21.00	1.00	21.00
##FFFFFF	19.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0A0A09

Deuteranopia (green-blind)

#151208

Tritanopia (blue-blind)

#2D0004

Achromatopsia (no color)

#0F0F0F

Design tokens & code

CSS

--color: #280109;
/* rgb */ color: rgb(40, 1, 9);
/* oklch */ color: oklch(17.9% 0.068 12.2);

Tailwind

colors: {
  custom: {
    50: '#63464b',
    500: '#280109',
    950: '#000000',
  },
}

SCSS

$custom: #280109;
$custom-light: #63464b;
$custom-dark: #000000;

JSON

{
  "hex": "#280109",
  "rgb": {
    "r": 40,
    "g": 1,
    "b": 9
  },
  "hsl": {
    "h": 347.692,
    "s": 95.122,
    "l": 8.039
  },
  "oklch": {
    "l": 0.1789,
    "c": 0.06812,
    "h": 12.2
  },
  "luminance": 0.00493
}

Semantic roles & 50–950 ramp

primary

#280109

secondary

#166F5C

accent

#FFD329

background

#F6F3F4

surface

#EBE5E7

border

#C6C1C3

text

#060001

muted

#7A7677

Preview Lab

Preview with #280109

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

Preview Lab → · Contrast checker → · Palette generator →