#A1371F#A1371F

#A1371F is a mid, vivid red. Relative luminance 0.104; OKLCH L 48.7% C 0.145 H 34.2°. Best body text is #FFFFFF at 6.81:1 contrast (WCAG AA passes).

Color values

HEX	#A1371F
RGB	rgb(161, 55, 31)
HSL	hsl(11, 68%, 38%)
HSV	hsv(11, 81%, 63%)
CMYK	cmyk(0%, 65.8%, 80.7%, 36.9%)
CIE-LAB	lab(38.57, 42.65, 37.65)
CIE-LCH	lch(38.57, 56.89, 41.44°)
OKLab	oklab(48.67% 0.1202 0.0816)
OKLCH	oklch(48.67% 0.145 34.2)
XYZ	xyz(16.3133, 10.4108, 2.4465)
Luminance	0.1041 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A1371F #1F89A1

analogous

#A11F48 #A1371F #A1781F

triadic

#A1371F #1FA137 #371FA1

tetradic

#A1371F #48A11F #1F89A1 #781FA1

square

#A1371F #48A11F #1F89A1 #781FA1

split-complementary

#A1371F #1FA178 #1F48A1

monochromatic

#3A140B #6E2515 #A1371F #D44929 #DF735B

Accessibility & contrast

On white

6.81

#A1371F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.08

#A1371F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A1371F

6.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A1371F	#FFFFFF	#000000	##FFFFFF
##A1371F	1.00	6.81	3.08	6.81
#FFFFFF	6.81	1.00	21.00	1.00
#000000	3.08	21.00	1.00	21.00
##FFFFFF	6.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#554C1B

Deuteranopia (green-blind)

#70641B

Tritanopia (blue-blind)

#B11932

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #a1371f;
/* rgb */ color: rgb(161, 55, 31);
/* oklch */ color: oklch(48.7% 0.145 34.2);

Tailwind

colors: {
  custom: {
    50: '#c5735c',
    500: '#a1371f',
    950: '#000000',
  },
}

SCSS

$custom: #a1371f;
$custom-light: #c5735c;
$custom-dark: #000000;

JSON

{
  "hex": "#a1371f",
  "rgb": {
    "r": 161,
    "g": 55,
    "b": 31
  },
  "hsl": {
    "h": 11.077,
    "s": 67.708,
    "l": 37.647
  },
  "oklch": {
    "l": 0.48665,
    "c": 0.14529,
    "h": 34.2
  },
  "luminance": 0.10408
}

Semantic roles & 50–950 ramp

primary

#A1371F

secondary

#58B0C4

accent

#CBEB3D

background

#FDF7F5

surface

#FAEDE9

border

#D3C8C5

text

#140804

muted

#837B79

Preview Lab

Preview with #A1371F

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

Preview Lab → · Contrast checker → · Palette generator →