#A7311E#A7311E

#A7311E is a mid, vivid red. Relative luminance 0.105; OKLCH L 49.0% C 0.157 H 31.9°. Best body text is #FFFFFF at 6.77:1 contrast (WCAG AA passes).

Color values

HEX	#A7311E
RGB	rgb(167, 49, 30)
HSL	hsl(8, 70%, 39%)
HSV	hsv(8, 82%, 65%)
CMYK	cmyk(0%, 70.7%, 82%, 34.5%)
CIE-LAB	lab(38.74, 47.25, 38.72)
CIE-LCH	lch(38.74, 61.09, 39.33°)
OKLab	oklab(49% 0.1337 0.0831)
OKLCH	oklch(49% 0.157 31.9)
XYZ	xyz(17.2710, 10.5085, 2.3470)
Luminance	0.1051 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A7311E #1E94A7

analogous

#A71E4F #A7311E #A7751E

triadic

#A7311E #1EA731 #311EA7

tetradic

#A7311E #4FA71E #1E94A7 #751EA7

square

#A7311E #4FA71E #1E94A7 #751EA7

split-complementary

#A7311E #1EA775 #1E4FA7

monochromatic

#3F130B #732215 #A7311E #D9422A #E2705D

Accessibility & contrast

On white

6.77

#A7311E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.10

#A7311E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A7311E

6.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A7311E	#FFFFFF	#000000	##FFFFFF
##A7311E	1.00	6.77	3.10	6.77
#FFFFFF	6.77	1.00	21.00	1.00
#000000	3.10	21.00	1.00	21.00
##FFFFFF	6.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#544B1B

Deuteranopia (green-blind)

#716518

Tritanopia (blue-blind)

#B8012E

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #a7311e;
/* rgb */ color: rgb(167, 49, 30);
/* oklch */ color: oklch(49.0% 0.157 31.9);

Tailwind

colors: {
  custom: {
    50: '#ca715c',
    500: '#a7311e',
    950: '#000000',
  },
}

SCSS

$custom: #a7311e;
$custom-light: #ca715c;
$custom-dark: #000000;

JSON

{
  "hex": "#a7311e",
  "rgb": {
    "r": 167,
    "g": 49,
    "b": 30
  },
  "hsl": {
    "h": 8.321,
    "s": 69.543,
    "l": 38.627
  },
  "oklch": {
    "l": 0.48996,
    "c": 0.15738,
    "h": 31.9
  },
  "luminance": 0.10506
}

Semantic roles & 50–950 ramp

primary

#A7311E

secondary

#5BB7C6

accent

#D4EC3B

background

#FDF7F5

surface

#FBEDE9

border

#D4C8C5

text

#150804

muted

#837B79

Preview Lab

Preview with #A7311E

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

Preview Lab → · Contrast checker → · Palette generator →