#A1531F#A1531F

#A1531F is a mid, vivid orange. Relative luminance 0.139; OKLCH L 52.8% C 0.121 H 50.3°. Best body text is #FFFFFF at 5.57:1 contrast (WCAG AA passes).

Color values

HEX	#A1531F
RGB	rgb(161, 83, 31)
HSL	hsl(24, 68%, 38%)
HSV	hsv(24, 81%, 63%)
CMYK	cmyk(0%, 48.4%, 80.7%, 36.9%)
CIE-LAB	lab(44.04, 28.56, 42.96)
CIE-LCH	lch(44.04, 51.59, 56.38°)
OKLab	oklab(52.82% 0.0772 0.0932)
OKLCH	oklch(52.82% 0.121 50.3)
XYZ	xyz(18.0402, 13.8647, 3.0222)
Luminance	0.1386 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A1531F #1F6DA1

analogous

#A11F2C #A1531F #A1941F

triadic

#A1531F #1FA153 #531FA1

tetradic

#A1531F #2CA11F #1F6DA1 #941FA1

square

#A1531F #2CA11F #1F6DA1 #941FA1

split-complementary

#A1531F #1FA194 #1F2CA1

monochromatic

#3A1E0B #6E3915 #A1531F #D46D29 #DF905B

Accessibility & contrast

On white

5.57

#A1531F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.77

#A1531F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A1531F

5.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A1531F	#FFFFFF	#000000	##FFFFFF
##A1531F	1.00	5.57	3.77	5.57
#FFFFFF	5.57	1.00	21.00	1.00
#000000	3.77	21.00	1.00	21.00
##FFFFFF	5.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#695D18

Deuteranopia (green-blind)

#7C6F1E

Tritanopia (blue-blind)

#B14248

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #a1531f;
/* rgb */ color: rgb(161, 83, 31);
/* oklch */ color: oklch(52.8% 0.121 50.3);

Tailwind

colors: {
  custom: {
    50: '#c3845f',
    500: '#a1531f',
    950: '#000000',
  },
}

SCSS

$custom: #a1531f;
$custom-light: #c3845f;
$custom-dark: #000000;

JSON

{
  "hex": "#a1531f",
  "rgb": {
    "r": 161,
    "g": 83,
    "b": 31
  },
  "hsl": {
    "h": 24,
    "s": 67.708,
    "l": 37.647
  },
  "oklch": {
    "l": 0.5282,
    "c": 0.121,
    "h": 50.3
  },
  "luminance": 0.13863
}

Semantic roles & 50–950 ramp

primary

#A1531F

secondary

#5899C4

accent

#A5EB3D

background

#FCF8F5

surface

#F9EFE9

border

#D2CAC5

text

#140B05

muted

#827C79

Preview Lab

Preview with #A1531F

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

Preview Lab → · Contrast checker → · Palette generator →