#A1381B#A1381B

#A1381B is a mid, vivid red. Relative luminance 0.105; OKLCH L 48.8% C 0.145 H 35.8°. Best body text is #FFFFFF at 6.78:1 contrast (WCAG AA passes).

Color values

HEX	#A1381B
RGB	rgb(161, 56, 27)
HSL	hsl(13, 71%, 37%)
HSV	hsv(13, 83%, 63%)
CMYK	cmyk(0%, 65.2%, 83.2%, 36.9%)
CIE-LAB	lab(38.70, 42.07, 39.82)
CIE-LCH	lch(38.70, 57.93, 43.43°)
OKLab	oklab(48.75% 0.1177 0.085)
OKLCH	oklch(48.75% 0.145 35.8)
XYZ	xyz(16.3118, 10.4869, 2.2020)
Luminance	0.1048 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A1381B #1B84A1

analogous

#A11B41 #A1381B #A17B1B

triadic

#A1381B #1BA138 #381BA1

tetradic

#A1381B #41A11B #1B84A1 #7B1BA1

square

#A1381B #41A11B #1B84A1 #7B1BA1

split-complementary

#A1381B #1BA17B #1B41A1

monochromatic

#381409 #6D2612 #A1381B #D54A24 #E27354

Accessibility & contrast

On white

6.78

#A1381B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.10

#A1381B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A1381B

6.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A1381B	#FFFFFF	#000000	##FFFFFF
##A1381B	1.00	6.78	3.10	6.78
#FFFFFF	6.78	1.00	21.00	1.00
#000000	3.10	21.00	1.00	21.00
##FFFFFF	6.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#564C16

Deuteranopia (green-blind)

#706416

Tritanopia (blue-blind)

#B21A32

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #a1381b;
/* rgb */ color: rgb(161, 56, 27);
/* oklch */ color: oklch(48.8% 0.145 35.8);

Tailwind

colors: {
  custom: {
    50: '#c5745a',
    500: '#a1381b',
    950: '#000000',
  },
}

SCSS

$custom: #a1381b;
$custom-light: #c5745a;
$custom-dark: #000000;

JSON

{
  "hex": "#a1381b",
  "rgb": {
    "r": 161,
    "g": 56,
    "b": 27
  },
  "hsl": {
    "h": 12.985,
    "s": 71.277,
    "l": 36.863
  },
  "oklch": {
    "l": 0.48754,
    "c": 0.1452,
    "h": 35.8
  },
  "luminance": 0.10485
}

Semantic roles & 50–950 ramp

primary

#A1381B

secondary

#52ACC5

accent

#C7EE3A

background

#FDF7F5

surface

#FAEDE9

border

#D3C8C5

text

#140804

muted

#837B79

Preview Lab

Preview with #A1381B

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

Preview Lab → · Contrast checker → · Palette generator →