#280409#280409

#280409 is a very dark, moderate red. Relative luminance 0.006; OKLCH L 18.5% C 0.061 H 16.0°. Best body text is #FFFFFF at 18.89:1 contrast (WCAG AA passes).

Color values

HEX	#280409
RGB	rgb(40, 4, 9)
HSL	hsl(352, 82%, 9%)
HSV	hsv(352, 90%, 16%)
CMYK	cmyk(0%, 90%, 77.5%, 84.3%)
CIE-LAB	lab(5.04, 17.69, 4.18)
CIE-LCH	lch(5.04, 18.18, 13.29°)
OKLab	oklab(18.51% 0.059 0.0169)
OKLCH	oklch(18.51% 0.061 16)
XYZ	xyz(0.9679, 0.5578, 0.3151)
Luminance	0.0056 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#280409 #042823

analogous

#28041B #280409 #281104

triadic

#280409 #092804 #040928

tetradic

#280409 #1B2804 #042823 #110428

square

#280409 #1B2804 #042823 #110428

split-complementary

#280409 #042811 #041B28

monochromatic

#1C0306 #1C0306 #280409 #600A16 #970F22

Accessibility & contrast

On white

18.89

#280409 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.11

#280409 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #280409

18.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##280409	#FFFFFF	#000000	##FFFFFF
##280409	1.00	18.89	1.11	18.89
#FFFFFF	18.89	1.00	21.00	1.00
#000000	1.11	21.00	1.00	21.00
##FFFFFF	18.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0D0C09

Deuteranopia (green-blind)

#161408

Tritanopia (blue-blind)

#2D0006

Achromatopsia (no color)

#111111

Design tokens & code

CSS

--color: #280409;
/* rgb */ color: rgb(40, 4, 9);
/* oklch */ color: oklch(18.5% 0.061 16.0);

Tailwind

colors: {
  custom: {
    50: '#64484b',
    500: '#280409',
    950: '#000000',
  },
}

SCSS

$custom: #280409;
$custom-light: #64484b;
$custom-dark: #000000;

JSON

{
  "hex": "#280409",
  "rgb": {
    "r": 40,
    "g": 4,
    "b": 9
  },
  "hsl": {
    "h": 351.667,
    "s": 81.818,
    "l": 8.627
  },
  "oklch": {
    "l": 0.18506,
    "c": 0.06134,
    "h": 16
  },
  "luminance": 0.00558
}

Semantic roles & 50–950 ramp

primary

#280409

secondary

#1D6B60

accent

#F8DC30

background

#F6F4F4

surface

#EBE6E7

border

#C6C2C3

text

#060001

muted

#7A7777

Preview Lab

Preview with #280409

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

Preview Lab → · Contrast checker → · Palette generator →