#731F11#731F11

#731F11 is a dark, vivid red. Relative luminance 0.047; OKLCH L 37.4% C 0.120 H 32.1°. Best body text is #FFFFFF at 10.86:1 contrast (WCAG AA passes).

Color values

HEX	#731F11
RGB	rgb(115, 31, 17)
HSL	hsl(9, 74%, 26%)
HSV	hsv(9, 85%, 45%)
CMYK	cmyk(0%, 73%, 85.2%, 54.9%)
CIE-LAB	lab(25.76, 35.98, 29.74)
CIE-LCH	lch(25.76, 46.68, 39.57°)
OKLab	oklab(37.38% 0.1017 0.0637)
OKLCH	oklch(37.38% 0.12 32.1)
XYZ	xyz(7.6623, 4.6665, 1.0275)
Luminance	0.0466 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#731F11 #116573

analogous

#731134 #731F11 #735011

triadic

#731F11 #11731F #1F1173

tetradic

#731F11 #347311 #116573 #501173

square

#731F11 #347311 #116573 #501173

split-complementary

#731F11 #117350 #113473

monochromatic

#1B0704 #3E1109 #731F11 #A82D19 #DE3C21

Accessibility & contrast

On white

10.86

#731F11 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#731F11 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #731F11

10.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##731F11	#FFFFFF	#000000	##FFFFFF
##731F11	1.00	10.86	1.93	10.86
#FFFFFF	10.86	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#38310E

Deuteranopia (green-blind)

#4D440D

Tritanopia (blue-blind)

#7F001D

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #731f11;
/* rgb */ color: rgb(115, 31, 17);
/* oklch */ color: oklch(37.4% 0.120 32.1);

Tailwind

colors: {
  custom: {
    50: '#a36150',
    500: '#731f11',
    950: '#000000',
  },
}

SCSS

$custom: #731f11;
$custom-light: #a36150;
$custom-dark: #000000;

JSON

{
  "hex": "#731f11",
  "rgb": {
    "r": 115,
    "g": 31,
    "b": 17
  },
  "hsl": {
    "h": 8.571,
    "s": 74.242,
    "l": 25.882
  },
  "oklch": {
    "l": 0.37378,
    "c": 0.12,
    "h": 32.1
  },
  "luminance": 0.04665
}

Semantic roles & 50–950 ramp

primary

#731F11

secondary

#3699AA

accent

#D6F137

background

#FAF5F4

surface

#F4EAE7

border

#CEC6C3

text

#100502

muted

#7F7978

Preview Lab

Preview with #731F11

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

Preview Lab → · Contrast checker → · Palette generator →