#A6351F#A6351F

#A6351F is a mid, vivid red. Relative luminance 0.108; OKLCH L 49.3% C 0.153 H 33.0°. Best body text is #FFFFFF at 6.67:1 contrast (WCAG AA passes).

Color values

HEX	#A6351F
RGB	rgb(166, 53, 31)
HSL	hsl(10, 69%, 39%)
HSV	hsv(10, 81%, 65%)
CMYK	cmyk(0%, 68.1%, 81.3%, 34.9%)
CIE-LAB	lab(39.16, 45.30, 38.54)
CIE-LCH	lch(39.16, 59.48, 40.39°)
OKLab	oklab(49.28% 0.1279 0.0831)
OKLCH	oklch(49.28% 0.153 33)
XYZ	xyz(17.2483, 10.7547, 2.4637)
Luminance	0.1075 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A6351F #1F90A6

analogous

#A61F4C #A6351F #A6781F

triadic

#A6351F #1FA635 #351FA6

tetradic

#A6351F #4CA61F #1F90A6 #781FA6

square

#A6351F #4CA61F #1F90A6 #781FA6

split-complementary

#A6351F #1FA678 #1F4CA6

monochromatic

#3F140C #722515 #A6351F #D7472B #E1745E

Accessibility & contrast

On white

6.67

#A6351F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.15

#A6351F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A6351F

6.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A6351F	#FFFFFF	#000000	##FFFFFF
##A6351F	1.00	6.67	3.15	6.67
#FFFFFF	6.67	1.00	21.00	1.00
#000000	3.15	21.00	1.00	21.00
##FFFFFF	6.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#564C1B

Deuteranopia (green-blind)

#72651A

Tritanopia (blue-blind)

#B71031

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #a6351f;
/* rgb */ color: rgb(166, 53, 31);
/* oklch */ color: oklch(49.3% 0.153 33.0);

Tailwind

colors: {
  custom: {
    50: '#c9735d',
    500: '#a6351f',
    950: '#000000',
  },
}

SCSS

$custom: #a6351f;
$custom-light: #c9735d;
$custom-dark: #000000;

JSON

{
  "hex": "#a6351f",
  "rgb": {
    "r": 166,
    "g": 53,
    "b": 31
  },
  "hsl": {
    "h": 9.778,
    "s": 68.528,
    "l": 38.627
  },
  "oklch": {
    "l": 0.49283,
    "c": 0.15253,
    "h": 33
  },
  "luminance": 0.10752
}

Semantic roles & 50–950 ramp

primary

#A6351F

secondary

#5BB4C5

accent

#CFEB3C

background

#FDF7F5

surface

#FAEDE9

border

#D3C8C5

text

#150804

muted

#837B79

Preview Lab

Preview with #A6351F

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

Preview Lab → · Contrast checker → · Palette generator →