#280507#280507

#280507 is a very dark, muted red. Relative luminance 0.006; OKLCH L 18.6% C 0.059 H 21.1°. Best body text is #FFFFFF at 18.83:1 contrast (WCAG AA passes).

Color values

HEX	#280507
RGB	rgb(40, 5, 7)
HSL	hsl(357, 78%, 9%)
HSV	hsv(357, 88%, 16%)
CMYK	cmyk(0%, 87.5%, 82.5%, 84.3%)
CIE-LAB	lab(5.19, 17.02, 5.22)
CIE-LCH	lch(5.19, 17.80, 17.07°)
OKLab	oklab(18.65% 0.0554 0.0214)
OKLCH	oklch(18.65% 0.059 21.1)
XYZ	xyz(0.9678, 0.5751, 0.2610)
Luminance	0.0057 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#280507 #052826

analogous

#280519 #280507 #281505

triadic

#280507 #072805 #050728

tetradic

#280507 #192805 #052826 #150528

square

#280507 #192805 #052826 #150528

split-complementary

#280507 #052815 #051928

monochromatic

#1B0305 #1B0305 #280507 #5E0C11 #95131A

Accessibility & contrast

On white

18.83

#280507 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.12

#280507 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #280507

18.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##280507	#FFFFFF	#000000	##FFFFFF
##280507	1.00	18.83	1.12	18.83
#FFFFFF	18.83	1.00	21.00	1.00
#000000	1.12	21.00	1.00	21.00
##FFFFFF	18.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0E0C07

Deuteranopia (green-blind)

#171406

Tritanopia (blue-blind)

#2D0006

Achromatopsia (no color)

#111111

Design tokens & code

CSS

--color: #280507;
/* rgb */ color: rgb(40, 5, 7);
/* oklch */ color: oklch(18.6% 0.059 21.1);

Tailwind

colors: {
  custom: {
    50: '#64484a',
    500: '#280507',
    950: '#000000',
  },
}

SCSS

$custom: #280507;
$custom-light: #64484a;
$custom-dark: #000000;

JSON

{
  "hex": "#280507",
  "rgb": {
    "r": 40,
    "g": 5,
    "b": 7
  },
  "hsl": {
    "h": 356.571,
    "s": 77.778,
    "l": 8.824
  },
  "oklch": {
    "l": 0.18645,
    "c": 0.05943,
    "h": 21.1
  },
  "luminance": 0.00575
}

Semantic roles & 50–950 ramp

primary

#280507

secondary

#1F6A65

accent

#F4E934

background

#F6F4F4

surface

#EBE6E7

border

#C6C2C3

text

#060001

muted

#7A7777

Preview Lab

Preview with #280507

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

Preview Lab → · Contrast checker → · Palette generator →