#280405#280405

#280405 is a very dark, moderate red. Relative luminance 0.005; OKLCH L 18.4% C 0.062 H 23.6°. Best body text is #FFFFFF at 18.92:1 contrast (WCAG AA passes).

Color values

HEX	#280405
RGB	rgb(40, 4, 5)
HSL	hsl(358, 82%, 9%)
HSV	hsv(358, 90%, 16%)
CMYK	cmyk(0%, 90%, 87.5%, 84.3%)
CIE-LAB	lab(4.96, 17.21, 5.70)
CIE-LCH	lch(4.96, 18.13, 18.31°)
OKLab	oklab(18.39% 0.0565 0.0247)
OKLCH	oklch(18.39% 0.062 23.6)
XYZ	xyz(0.9460, 0.5491, 0.1997)
Luminance	0.0055 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#280405 #042827

analogous

#280417 #280405 #281504

triadic

#280405 #052804 #040528

tetradic

#280405 #172804 #042827 #150428

square

#280405 #172804 #042827 #150428

split-complementary

#280405 #042815 #041728

monochromatic

#1C0303 #1C0303 #280405 #600A0C #970F13

Accessibility & contrast

On white

18.92

#280405 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.11

#280405 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #280405

18.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##280405	#FFFFFF	#000000	##FFFFFF
##280405	1.00	18.92	1.11	18.92
#FFFFFF	18.92	1.00	21.00	1.00
#000000	1.11	21.00	1.00	21.00
##FFFFFF	18.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0D0C05

Deuteranopia (green-blind)

#171404

Tritanopia (blue-blind)

#2D0005

Achromatopsia (no color)

#111111

Design tokens & code

CSS

--color: #280405;
/* rgb */ color: rgb(40, 4, 5);
/* oklch */ color: oklch(18.4% 0.062 23.6);

Tailwind

colors: {
  custom: {
    50: '#634849',
    500: '#280405',
    950: '#000000',
  },
}

SCSS

$custom: #280405;
$custom-light: #634849;
$custom-dark: #000000;

JSON

{
  "hex": "#280405",
  "rgb": {
    "r": 40,
    "g": 4,
    "b": 5
  },
  "hsl": {
    "h": 358.333,
    "s": 81.818,
    "l": 8.627
  },
  "oklch": {
    "l": 0.1839,
    "c": 0.06163,
    "h": 23.6
  },
  "luminance": 0.00549
}

Semantic roles & 50–950 ramp

primary

#280405

secondary

#1D6B69

accent

#F8F330

background

#F6F4F4

surface

#EBE6E6

border

#C6C2C2

text

#060000

muted

#7A7777

Preview Lab

Preview with #280405

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

Preview Lab → · Contrast checker → · Palette generator →