#280A03#280A03

#280A03 is a very dark, muted red. Relative luminance 0.007; OKLCH L 19.5% C 0.053 H 37.6°. Best body text is #FFFFFF at 18.50:1 contrast (WCAG AA passes).

Color values

HEX	#280A03
RGB	rgb(40, 10, 3)
HSL	hsl(11, 86%, 8%)
HSV	hsv(11, 93%, 16%)
CMYK	cmyk(0%, 75%, 92.5%, 84.3%)
CIE-LAB	lab(6.10, 14.33, 8.17)
CIE-LCH	lch(6.10, 16.49, 29.69°)
OKLab	oklab(19.47% 0.0422 0.0325)
OKLCH	oklch(19.47% 0.053 37.6)
XYZ	xyz(1.0002, 0.6749, 0.1637)
Luminance	0.0067 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#280A03 #032128

analogous

#28030E #280A03 #281C03

triadic

#280A03 #03280A #0A0328

tetradic

#280A03 #0E2803 #032128 #1C0328

square

#280A03 #0E2803 #032128 #1C0328

split-complementary

#280A03 #03281C #030E28

monochromatic

#1C0702 #1C0702 #280A03 #611807 #9A260C

Accessibility & contrast

On white

18.50

#280A03 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.14

#280A03 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #280A03

18.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##280A03	#FFFFFF	#000000	##FFFFFF
##280A03	1.00	18.50	1.14	18.50
#FFFFFF	18.50	1.00	21.00	1.00
#000000	1.14	21.00	1.00	21.00
##FFFFFF	18.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#120F02

Deuteranopia (green-blind)

#1A1603

Tritanopia (blue-blind)

#2D0408

Achromatopsia (no color)

#131313

Design tokens & code

CSS

--color: #280a03;
/* rgb */ color: rgb(40, 10, 3);
/* oklch */ color: oklch(19.5% 0.053 37.6);

Tailwind

colors: {
  custom: {
    50: '#634b48',
    500: '#280a03',
    950: '#000000',
  },
}

SCSS

$custom: #280a03;
$custom-light: #634b48;
$custom-dark: #000000;

JSON

{
  "hex": "#280a03",
  "rgb": {
    "r": 40,
    "g": 10,
    "b": 3
  },
  "hsl": {
    "h": 11.351,
    "s": 86.047,
    "l": 8.431
  },
  "oklch": {
    "l": 0.19468,
    "c": 0.05329,
    "h": 37.6
  },
  "luminance": 0.00675
}

Semantic roles & 50–950 ramp

primary

#280A03

secondary

#1B5D6C

accent

#D5FC2C

background

#F6F4F4

surface

#EBE7E6

border

#C6C3C2

text

#060100

muted

#7A7777

Preview Lab

Preview with #280A03

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

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