Rust Brown#8B3103

#8B3103 is a dark, vivid orange. Relative luminance 0.077; OKLCH L 43.9% C 0.132 H 41.3°. Best body text is #FFFFFF at 8.27:1 contrast (WCAG AA passes).

Rust Brown — editorial page

Color values

HEX	#8B3103
RGB	rgb(139, 49, 3)
HSL	hsl(20, 96%, 28%)
HSV	hsv(20, 98%, 55%)
CMYK	cmyk(0%, 64.7%, 97.8%, 45.5%)
CIE-LAB	lab(33.34, 36.51, 43.86)
CIE-LCH	lch(33.34, 57.07, 50.22°)
OKLab	oklab(43.91% 0.0992 0.0872)
OKLCH	oklch(43.91% 0.132 41.3)
XYZ	xyz(11.7636, 7.6939, 0.9518)
Luminance	0.0769 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#8B3103 #035D8B

analogous

#8B0319 #8B3103 #8B7503

triadic

#8B3103 #038B31 #31038B

tetradic

#8B3103 #198B03 #035D8B #75038B

square

#8B3103 #198B03 #035D8B #75038B

split-complementary

#8B3103 #038B75 #03198B

monochromatic

#1E0B01 #4F1C02 #8B3103 #C74604 #FA5E0F

Accessibility & contrast

On white

8.27

#8B3103 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.54

#8B3103 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #8B3103

8.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##8B3103	#FFFFFF	#000000	##FFFFFF
##8B3103	1.00	8.27	2.54	8.27
#FFFFFF	8.27	1.00	21.00	1.00
#000000	2.54	21.00	1.00	21.00
##FFFFFF	8.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C4200

Deuteranopia (green-blind)

#625600

Tritanopia (blue-blind)

#9A172A

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #8b3103;
/* rgb */ color: rgb(139, 49, 3);
/* oklch */ color: oklch(43.9% 0.132 41.3);

Tailwind

colors: {
  custom: {
    50: '#b66d4c',
    500: '#8b3103',
    950: '#000000',
  },
}

SCSS

$custom: #8b3103;
$custom-light: #b66d4c;
$custom-dark: #000000;

JSON

{
  "hex": "#8b3103",
  "rgb": {
    "r": 139,
    "g": 49,
    "b": 3
  },
  "hsl": {
    "h": 20.294,
    "s": 95.775,
    "l": 27.843
  },
  "oklch": {
    "l": 0.4391,
    "c": 0.13212,
    "h": 41.3
  },
  "luminance": 0.07692
}

Semantic roles & 50–950 ramp

primary

#8B3103

secondary

#278EC3

accent

#B7FF29

background

#FCF6F4

surface

#F8ECE7

border

#D1C7C3

text

#130701

muted

#827A77

Preview Lab

Preview with #8B3103

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

Preview Lab → · Contrast checker → · Palette generator →