#28000A#28000A

#28000A is a very dark, moderate red. Relative luminance 0.005; OKLCH L 17.7% C 0.071 H 9.4°. Best body text is #FFFFFF at 19.19:1 contrast (WCAG AA passes).

Color values

HEX	#28000A
RGB	rgb(40, 0, 10)
HSL	hsl(345, 100%, 8%)
HSV	hsv(345, 100%, 16%)
CMYK	cmyk(0%, 100%, 75%, 84.3%)
CIE-LAB	lab(4.27, 19.55, 2.66)
CIE-LCH	lch(4.27, 19.73, 7.74°)
OKLab	oklab(17.71% 0.0699 0.0116)
OKLCH	oklch(17.71% 0.071 9.4)
XYZ	xyz(0.9300, 0.4732, 0.3295)
Luminance	0.0047 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28000A #00281E

analogous

#28001E #28000A #280A00

triadic

#28000A #0A2800 #000A28

tetradic

#28000A #1E2800 #00281E #0A0028

square

#28000A #1E2800 #00281E #0A0028

split-complementary

#28000A #00280A #001E28

monochromatic

#1F0008 #1F0008 #28000A #650019 #A20029

Accessibility & contrast

On white

19.19

#28000A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.09

#28000A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28000A

19.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28000A	#FFFFFF	#000000	##FFFFFF
##28000A	1.00	19.19	1.09	19.19
#FFFFFF	19.19	1.00	21.00	1.00
#000000	1.09	21.00	1.00	21.00
##FFFFFF	19.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#09090A

Deuteranopia (green-blind)

#141209

Tritanopia (blue-blind)

#2D0003

Achromatopsia (no color)

#0F0F0F

Design tokens & code

CSS

--color: #28000a;
/* rgb */ color: rgb(40, 0, 10);
/* oklch */ color: oklch(17.7% 0.071 9.4);

Tailwind

colors: {
  custom: {
    50: '#63464b',
    500: '#28000a',
    950: '#000000',
  },
}

SCSS

$custom: #28000a;
$custom-light: #63464b;
$custom-dark: #000000;

JSON

{
  "hex": "#28000a",
  "rgb": {
    "r": 40,
    "g": 0,
    "b": 10
  },
  "hsl": {
    "h": 345,
    "s": 100,
    "l": 7.843
  },
  "oklch": {
    "l": 0.17706,
    "c": 0.07083,
    "h": 9.4
  },
  "luminance": 0.00473
}

Semantic roles & 50–950 ramp

primary

#28000A

secondary

#147059

accent

#FFC929

background

#F6F3F4

surface

#EBE5E7

border

#C6C1C3

text

#060001

muted

#7A7677

Preview Lab

Preview with #28000A

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

Preview Lab → · Contrast checker → · Palette generator →