#280305#280305

#280305 is a very dark, moderate red. Relative luminance 0.005; OKLCH L 18.2% C 0.064 H 22.2°. Best body text is #FFFFFF at 19.00:1 contrast (WCAG AA passes).

Color values

HEX	#280305
RGB	rgb(40, 3, 5)
HSL	hsl(357, 86%, 8%)
HSV	hsv(357, 93%, 16%)
CMYK	cmyk(0%, 92.5%, 87.5%, 84.3%)
CIE-LAB	lab(4.76, 17.64, 5.41)
CIE-LCH	lch(4.76, 18.45, 17.04°)
OKLab	oklab(18.19% 0.0589 0.024)
OKLCH	oklch(18.19% 0.064 22.2)
XYZ	xyz(0.9351, 0.5273, 0.1961)
Luminance	0.0053 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#280305 #032826

analogous

#280317 #280305 #281303

triadic

#280305 #052803 #030528

tetradic

#280305 #172803 #032826 #130328

square

#280305 #172803 #032826 #130328

split-complementary

#280305 #032813 #031728

monochromatic

#1C0204 #1C0204 #280305 #61070C #9A0C13

Accessibility & contrast

On white

19.00

#280305 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.11

#280305 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #280305

19.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##280305	#FFFFFF	#000000	##FFFFFF
##280305	1.00	19.00	1.11	19.00
#FFFFFF	19.00	1.00	21.00	1.00
#000000	1.11	21.00	1.00	21.00
##FFFFFF	19.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0D0B05

Deuteranopia (green-blind)

#161304

Tritanopia (blue-blind)

#2D0004

Achromatopsia (no color)

#101010

Design tokens & code

CSS

--color: #280305;
/* rgb */ color: rgb(40, 3, 5);
/* oklch */ color: oklch(18.2% 0.064 22.2);

Tailwind

colors: {
  custom: {
    50: '#634749',
    500: '#280305',
    950: '#000000',
  },
}

SCSS

$custom: #280305;
$custom-light: #634749;
$custom-dark: #000000;

JSON

{
  "hex": "#280305",
  "rgb": {
    "r": 40,
    "g": 3,
    "b": 5
  },
  "hsl": {
    "h": 356.757,
    "s": 86.047,
    "l": 8.431
  },
  "oklch": {
    "l": 0.18187,
    "c": 0.0636,
    "h": 22.2
  },
  "luminance": 0.00527
}

Semantic roles & 50–950 ramp

primary

#280305

secondary

#1B6C68

accent

#FCF12C

background

#F6F4F4

surface

#EBE6E6

border

#C6C2C2

text

#060000

muted

#7A7777

Preview Lab

Preview with #280305

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

Preview Lab → · Contrast checker → · Palette generator →