#AC351F#AC351F

#AC351F is a mid, vivid red. Relative luminance 0.114; OKLCH L 50.3% C 0.159 H 32.7°. Best body text is #FFFFFF at 6.40:1 contrast (WCAG AA passes).

Color values

HEX	#AC351F
RGB	rgb(172, 53, 31)
HSL	hsl(9, 69%, 40%)
HSV	hsv(9, 82%, 67%)
CMYK	cmyk(0%, 69.2%, 82%, 32.5%)
CIE-LAB	lab(40.28, 47.38, 40.00)
CIE-LCH	lch(40.28, 62.01, 40.17°)
OKLab	oklab(50.32% 0.1337 0.0858)
OKLCH	oklch(50.32% 0.159 32.7)
XYZ	xyz(18.5358, 11.4186, 2.5241)
Luminance	0.1142 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AC351F #1F96AC

analogous

#AC1F4F #AC351F #AC7C1F

triadic

#AC351F #1FAC35 #351FAC

tetradic

#AC351F #4FAC1F #1F96AC #7C1FAC

square

#AC351F #4FAC1F #1F96AC #7C1FAC

split-complementary

#AC351F #1FAC7C #1F4FAC

monochromatic

#44150C #782516 #AC351F #D9492F #E37763

Accessibility & contrast

On white

6.40

#AC351F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.28

#AC351F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AC351F

6.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AC351F	#FFFFFF	#000000	##FFFFFF
##AC351F	1.00	6.40	3.28	6.40
#FFFFFF	6.40	1.00	21.00	1.00
#000000	3.28	21.00	1.00	21.00
##FFFFFF	6.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#584E1B

Deuteranopia (green-blind)

#756919

Tritanopia (blue-blind)

#BE0931

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #ac351f;
/* rgb */ color: rgb(172, 53, 31);
/* oklch */ color: oklch(50.3% 0.159 32.7);

Tailwind

colors: {
  custom: {
    50: '#cd735d',
    500: '#ac351f',
    950: '#000000',
  },
}

SCSS

$custom: #ac351f;
$custom-light: #cd735d;
$custom-dark: #000000;

JSON

{
  "hex": "#ac351f",
  "rgb": {
    "r": 172,
    "g": 53,
    "b": 31
  },
  "hsl": {
    "h": 9.362,
    "s": 69.458,
    "l": 39.804
  },
  "oklch": {
    "l": 0.50323,
    "c": 0.15887,
    "h": 32.7
  },
  "luminance": 0.11416
}

Semantic roles & 50–950 ramp

primary

#AC351F

secondary

#5FB7C8

accent

#D1EC3C

background

#FDF7F5

surface

#FBEDE9

border

#D4C8C5

text

#150804

muted

#837B79

Preview Lab

Preview with #AC351F

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

Preview Lab → · Contrast checker → · Palette generator →