#AC312B#AC312B

#AC312B is a mid, vivid red. Relative luminance 0.111; OKLCH L 50.0% C 0.160 H 27.4°. Best body text is #FFFFFF at 6.50:1 contrast (WCAG AA passes).

Color values

HEX	#AC312B
RGB	rgb(172, 49, 43)
HSL	hsl(3, 60%, 42%)
HSV	hsv(3, 75%, 67%)
CMYK	cmyk(0%, 71.5%, 75%, 32.5%)
CIE-LAB	lab(39.82, 49.41, 32.90)
CIE-LCH	lch(39.82, 59.36, 33.66°)
OKLab	oklab(50.02% 0.1425 0.0738)
OKLCH	oklch(50.02% 0.16 27.4)
XYZ	xyz(18.5497, 11.1445, 3.4594)
Luminance	0.1114 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AC312B #2BA6AC

analogous

#AC2B65 #AC312B #AC722B

triadic

#AC312B #2BAC31 #312BAC

tetradic

#AC312B #65AC2B #2BA6AC #722BAC

square

#AC312B #65AC2B #2BA6AC #722BAC

split-complementary

#AC312B #2BAC72 #2B65AC

monochromatic

#4A1513 #7B231F #AC312B #D04A44 #DC7A75

Accessibility & contrast

On white

6.50

#AC312B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.23

#AC312B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AC312B

6.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AC312B	#FFFFFF	#000000	##FFFFFF
##AC312B	1.00	6.50	3.23	6.50
#FFFFFF	6.50	1.00	21.00	1.00
#000000	3.23	21.00	1.00	21.00
##FFFFFF	6.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#554D29

Deuteranopia (green-blind)

#736827

Tritanopia (blue-blind)

#BD0031

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #ac312b;
/* rgb */ color: rgb(172, 49, 43);
/* oklch */ color: oklch(50.0% 0.160 27.4);

Tailwind

colors: {
  custom: {
    50: '#cd7265',
    500: '#ac312b',
    950: '#000000',
  },
}

SCSS

$custom: #ac312b;
$custom-light: #cd7265;
$custom-dark: #000000;

JSON

{
  "hex": "#ac312b",
  "rgb": {
    "r": 172,
    "g": 49,
    "b": 43
  },
  "hsl": {
    "h": 2.791,
    "s": 60,
    "l": 42.157
  },
  "oklch": {
    "l": 0.50023,
    "c": 0.16048,
    "h": 27.4
  },
  "luminance": 0.11142
}

Semantic roles & 50–950 ramp

primary

#AC312B

secondary

#6FC0C4

accent

#DCE345

background

#FDF7F6

surface

#FBEDEB

border

#D4C8C6

text

#150805

muted

#837B7A

Preview Lab

Preview with #AC312B

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

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