#A1431B#A1431B

#A1431B is a mid, vivid orange. Relative luminance 0.117; OKLCH L 50.3% C 0.135 H 41.2°. Best body text is #FFFFFF at 6.30:1 contrast (WCAG AA passes).

Color values

HEX	#A1431B
RGB	rgb(161, 67, 27)
HSL	hsl(18, 71%, 37%)
HSV	hsv(18, 83%, 63%)
CMYK	cmyk(0%, 58.4%, 83.2%, 36.9%)
CIE-LAB	lab(40.69, 36.83, 41.67)
CIE-LCH	lch(40.69, 55.61, 48.53°)
OKLab	oklab(50.26% 0.1016 0.0891)
OKLCH	oklch(50.26% 0.135 41.2)
XYZ	xyz(16.9047, 11.6728, 2.3996)
Luminance	0.1167 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A1431B #1B79A1

analogous

#A11B36 #A1431B #A1861B

triadic

#A1431B #1BA143 #431BA1

tetradic

#A1431B #36A11B #1B79A1 #861BA1

square

#A1431B #36A11B #1B79A1 #861BA1

split-complementary

#A1431B #1BA186 #1B36A1

monochromatic

#381709 #6D2D12 #A1431B #D55924 #E27F54

Accessibility & contrast

On white

6.30

#A1431B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.33

#A1431B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A1431B

6.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A1431B	#FFFFFF	#000000	##FFFFFF
##A1431B	1.00	6.30	3.33	6.30
#FFFFFF	6.30	1.00	21.00	1.00
#000000	3.33	21.00	1.00	21.00
##FFFFFF	6.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E5315

Deuteranopia (green-blind)

#756817

Tritanopia (blue-blind)

#B12D3B

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #a1431b;
/* rgb */ color: rgb(161, 67, 27);
/* oklch */ color: oklch(50.3% 0.135 41.2);

Tailwind

colors: {
  custom: {
    50: '#c47a5b',
    500: '#a1431b',
    950: '#000000',
  },
}

SCSS

$custom: #a1431b;
$custom-light: #c47a5b;
$custom-dark: #000000;

JSON

{
  "hex": "#a1431b",
  "rgb": {
    "r": 161,
    "g": 67,
    "b": 27
  },
  "hsl": {
    "h": 17.91,
    "s": 71.277,
    "l": 36.863
  },
  "oklch": {
    "l": 0.50258,
    "c": 0.13515,
    "h": 41.2
  },
  "luminance": 0.11671
}

Semantic roles & 50–950 ramp

primary

#A1431B

secondary

#52A3C5

accent

#B8EE3A

background

#FDF7F5

surface

#FAEEE9

border

#D3C9C5

text

#140904

muted

#837B79

Preview Lab

Preview with #A1431B

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

Preview Lab → · Contrast checker → · Palette generator →