#AC3121#AC3121

#AC3121 is a mid, vivid red. Relative luminance 0.111; OKLCH L 49.9% C 0.162 H 30.8°. Best body text is #FFFFFF at 6.53:1 contrast (WCAG AA passes).

Color values

HEX	#AC3121
RGB	rgb(172, 49, 33)
HSL	hsl(7, 68%, 40%)
HSV	hsv(7, 81%, 67%)
CMYK	cmyk(0%, 71.5%, 80.8%, 32.5%)
CIE-LAB	lab(39.71, 49.03, 38.40)
CIE-LCH	lch(39.71, 62.28, 38.07°)
OKLab	oklab(49.91% 0.1393 0.0829)
OKLCH	oklch(49.91% 0.162 30.8)
XYZ	xyz(18.3882, 11.0799, 2.6090)
Luminance	0.1108 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AC3121 #219CAC

analogous

#AC2157 #AC3121 #AC7621

triadic

#AC3121 #21AC31 #3121AC

tetradic

#AC3121 #57AC21 #219CAC #7621AC

square

#AC3121 #57AC21 #219CAC #7621AC

split-complementary

#AC3121 #21AC76 #2157AC

monochromatic

#45140D #792217 #AC3121 #D84532 #E27466

Accessibility & contrast

On white

6.53

#AC3121 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.22

#AC3121 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AC3121

6.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AC3121	#FFFFFF	#000000	##FFFFFF
##AC3121	1.00	6.53	3.22	6.53
#FFFFFF	6.53	1.00	21.00	1.00
#000000	3.22	21.00	1.00	21.00
##FFFFFF	6.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#564C1E

Deuteranopia (green-blind)

#74671B

Tritanopia (blue-blind)

#BE002E

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #ac3121;
/* rgb */ color: rgb(172, 49, 33);
/* oklch */ color: oklch(49.9% 0.162 30.8);

Tailwind

colors: {
  custom: {
    50: '#ce715e',
    500: '#ac3121',
    950: '#000000',
  },
}

SCSS

$custom: #ac3121;
$custom-light: #ce715e;
$custom-dark: #000000;

JSON

{
  "hex": "#ac3121",
  "rgb": {
    "r": 172,
    "g": 49,
    "b": 33
  },
  "hsl": {
    "h": 6.906,
    "s": 67.805,
    "l": 40.196
  },
  "oklch": {
    "l": 0.49908,
    "c": 0.16208,
    "h": 30.8
  },
  "luminance": 0.11077
}

Semantic roles & 50–950 ramp

primary

#AC3121

secondary

#62BBC7

accent

#D7EB3D

background

#FDF7F5

surface

#FBEDE9

border

#D4C8C5

text

#150804

muted

#837B79

Preview Lab

Preview with #AC3121

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

Preview Lab → · Contrast checker → · Palette generator →