#280407#280407

#280407 is a very dark, moderate red. Relative luminance 0.006; OKLCH L 18.4% C 0.061 H 19.7°. Best body text is #FFFFFF at 18.91:1 contrast (WCAG AA passes).

Color values

HEX	#280407
RGB	rgb(40, 4, 7)
HSL	hsl(355, 82%, 9%)
HSV	hsv(355, 90%, 16%)
CMYK	cmyk(0%, 90%, 82.5%, 84.3%)
CIE-LAB	lab(5.00, 17.45, 4.94)
CIE-LCH	lch(5.00, 18.14, 15.80°)
OKLab	oklab(18.45% 0.0578 0.0207)
OKLCH	oklch(18.45% 0.061 19.7)
XYZ	xyz(0.9569, 0.5534, 0.2574)
Luminance	0.0055 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#280407 #042825

analogous

#280419 #280407 #281304

triadic

#280407 #072804 #040728

tetradic

#280407 #192804 #042825 #130428

square

#280407 #192804 #042825 #130428

split-complementary

#280407 #042813 #041928

monochromatic

#1C0305 #1C0305 #280407 #600A11 #970F1A

Accessibility & contrast

On white

18.91

#280407 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.11

#280407 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #280407

18.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##280407	#FFFFFF	#000000	##FFFFFF
##280407	1.00	18.91	1.11	18.91
#FFFFFF	18.91	1.00	21.00	1.00
#000000	1.11	21.00	1.00	21.00
##FFFFFF	18.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0D0C07

Deuteranopia (green-blind)

#171406

Tritanopia (blue-blind)

#2D0005

Achromatopsia (no color)

#111111

Design tokens & code

CSS

--color: #280407;
/* rgb */ color: rgb(40, 4, 7);
/* oklch */ color: oklch(18.4% 0.061 19.7);

Tailwind

colors: {
  custom: {
    50: '#64484a',
    500: '#280407',
    950: '#000000',
  },
}

SCSS

$custom: #280407;
$custom-light: #64484a;
$custom-dark: #000000;

JSON

{
  "hex": "#280407",
  "rgb": {
    "r": 40,
    "g": 4,
    "b": 7
  },
  "hsl": {
    "h": 355,
    "s": 81.818,
    "l": 8.627
  },
  "oklch": {
    "l": 0.18448,
    "c": 0.06138,
    "h": 19.7
  },
  "luminance": 0.00553
}

Semantic roles & 50–950 ramp

primary

#280407

secondary

#1D6B64

accent

#F8E730

background

#F6F4F4

surface

#EBE6E7

border

#C6C2C3

text

#060001

muted

#7A7777

Preview Lab

Preview with #280407

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

Preview Lab → · Contrast checker → · Palette generator →