#731D11#731D11

#731D11 is a dark, vivid red. Relative luminance 0.046; OKLCH L 37.1% C 0.122 H 31.1°. Best body text is #FFFFFF at 10.98:1 contrast (WCAG AA passes).

Color values

HEX	#731D11
RGB	rgb(115, 29, 17)
HSL	hsl(7, 74%, 26%)
HSV	hsv(7, 85%, 45%)
CMYK	cmyk(0%, 74.8%, 85.2%, 54.9%)
CIE-LAB	lab(25.46, 36.82, 29.45)
CIE-LCH	lch(25.46, 47.15, 38.65°)
OKLab	oklab(37.15% 0.1043 0.063)
OKLCH	oklch(37.15% 0.122 31.1)
XYZ	xyz(7.6117, 4.5652, 1.0106)
Luminance	0.0456 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#731D11 #116773

analogous

#731136 #731D11 #734E11

triadic

#731D11 #11731D #1D1173

tetradic

#731D11 #367311 #116773 #4E1173

square

#731D11 #367311 #116773 #4E1173

split-complementary

#731D11 #11734E #113673

monochromatic

#1B0704 #3E1009 #731D11 #A82A19 #DE3821

Accessibility & contrast

On white

10.98

#731D11 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#731D11 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #731D11

10.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##731D11	#FFFFFF	#000000	##FFFFFF
##731D11	1.00	10.98	1.91	10.98
#FFFFFF	10.98	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	10.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#37300F

Deuteranopia (green-blind)

#4C430D

Tritanopia (blue-blind)

#7F001B

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #731d11;
/* rgb */ color: rgb(115, 29, 17);
/* oklch */ color: oklch(37.1% 0.122 31.1);

Tailwind

colors: {
  custom: {
    50: '#a36050',
    500: '#731d11',
    950: '#000000',
  },
}

SCSS

$custom: #731d11;
$custom-light: #a36050;
$custom-dark: #000000;

JSON

{
  "hex": "#731d11",
  "rgb": {
    "r": 115,
    "g": 29,
    "b": 17
  },
  "hsl": {
    "h": 7.347,
    "s": 74.242,
    "l": 25.882
  },
  "oklch": {
    "l": 0.3715,
    "c": 0.12187,
    "h": 31.1
  },
  "luminance": 0.04564
}

Semantic roles & 50–950 ramp

primary

#731D11

secondary

#369CAA

accent

#DAF137

background

#FAF5F4

surface

#F4EAE7

border

#CEC6C3

text

#110502

muted

#807978

Preview Lab

Preview with #731D11

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

Preview Lab → · Contrast checker → · Palette generator →