#280104#280104

#280104 is a very dark, moderate red. Relative luminance 0.005; OKLCH L 17.7% C 0.068 H 21.4°. Best body text is #FFFFFF at 19.15:1 contrast (WCAG AA passes).

Color values

HEX	#280104
RGB	rgb(40, 1, 4)
HSL	hsl(355, 95%, 8%)
HSV	hsv(355, 98%, 16%)
CMYK	cmyk(0%, 97.5%, 90%, 84.3%)
CIE-LAB	lab(4.35, 18.37, 5.21)
CIE-LCH	lch(4.35, 19.10, 15.84°)
OKLab	oklab(17.73% 0.0633 0.0248)
OKLCH	oklch(17.73% 0.068 21.4)
XYZ	xyz(0.9080, 0.4817, 0.1600)
Luminance	0.0048 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#280104 #012825

analogous

#280117 #280104 #281101

triadic

#280104 #042801 #010428

tetradic

#280104 #172801 #012825 #110128

square

#280104 #172801 #012825 #110128

split-complementary

#280104 #012811 #011728

monochromatic

#1E0103 #1E0103 #280104 #64020A #9F0410

Accessibility & contrast

On white

19.15

#280104 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.10

#280104 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #280104

19.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##280104	#FFFFFF	#000000	##FFFFFF
##280104	1.00	19.15	1.10	19.15
#FFFFFF	19.15	1.00	21.00	1.00
#000000	1.10	21.00	1.00	21.00
##FFFFFF	19.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0B0904

Deuteranopia (green-blind)

#161203

Tritanopia (blue-blind)

#2D0002

Achromatopsia (no color)

#0F0F0F

Design tokens & code

CSS

--color: #280104;
/* rgb */ color: rgb(40, 1, 4);
/* oklch */ color: oklch(17.7% 0.068 21.4);

Tailwind

colors: {
  custom: {
    50: '#634648',
    500: '#280104',
    950: '#000000',
  },
}

SCSS

$custom: #280104;
$custom-light: #634648;
$custom-dark: #000000;

JSON

{
  "hex": "#280104",
  "rgb": {
    "r": 40,
    "g": 1,
    "b": 4
  },
  "hsl": {
    "h": 355.385,
    "s": 95.122,
    "l": 8.039
  },
  "oklch": {
    "l": 0.17734,
    "c": 0.06801,
    "h": 21.4
  },
  "luminance": 0.00482
}

Semantic roles & 50–950 ramp

primary

#280104

secondary

#166F68

accent

#FFEF29

background

#F6F3F4

surface

#EBE5E6

border

#C6C1C2

text

#060000

muted

#7A7677

Preview Lab

Preview with #280104

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

Preview Lab → · Contrast checker → · Palette generator →