#A13721#A13721

#A13721 is a mid, vivid red. Relative luminance 0.104; OKLCH L 48.7% C 0.145 H 33.5°. Best body text is #FFFFFF at 6.81:1 contrast (WCAG AA passes).

Color values

HEX	#A13721
RGB	rgb(161, 55, 33)
HSL	hsl(10, 66%, 38%)
HSV	hsv(10, 80%, 63%)
CMYK	cmyk(0%, 65.8%, 79.5%, 36.9%)
CIE-LAB	lab(38.59, 42.73, 36.60)
CIE-LCH	lch(38.59, 56.26, 40.59°)
OKLab	oklab(48.69% 0.1208 0.0799)
OKLCH	oklch(48.69% 0.145 33.5)
XYZ	xyz(16.3405, 10.4216, 2.5897)
Luminance	0.1042 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A13721 #218BA1

analogous

#A1214B #A13721 #A17721

triadic

#A13721 #21A137 #3721A1

tetradic

#A13721 #4BA121 #218BA1 #7721A1

square

#A13721 #4BA121 #218BA1 #7721A1

split-complementary

#A13721 #21A177 #214BA1

monochromatic

#3B140C #6E2617 #A13721 #D4482C #DE745E

Accessibility & contrast

On white

6.81

#A13721 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.08

#A13721 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A13721

6.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A13721	#FFFFFF	#000000	##FFFFFF
##A13721	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)

#554C1E

Deuteranopia (green-blind)

#6F641D

Tritanopia (blue-blind)

#B11933

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #a13721;
/* rgb */ color: rgb(161, 55, 33);
/* oklch */ color: oklch(48.7% 0.145 33.5);

Tailwind

colors: {
  custom: {
    50: '#c5735e',
    500: '#a13721',
    950: '#000000',
  },
}

SCSS

$custom: #a13721;
$custom-light: #c5735e;
$custom-dark: #000000;

JSON

{
  "hex": "#a13721",
  "rgb": {
    "r": 161,
    "g": 55,
    "b": 33
  },
  "hsl": {
    "h": 10.313,
    "s": 65.979,
    "l": 38.039
  },
  "oklch": {
    "l": 0.48686,
    "c": 0.14486,
    "h": 33.5
  },
  "luminance": 0.10419
}

Semantic roles & 50–950 ramp

primary

#A13721

secondary

#5BB1C3

accent

#CCE93F

background

#FDF7F5

surface

#FAEDE9

border

#D3C8C5

text

#140804

muted

#837B79

Preview Lab

Preview with #A13721

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

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