#A63F29#A63F29

#A63F29 is a mid, vivid red. Relative luminance 0.118; OKLCH L 50.6% C 0.141 H 33.7°. Best body text is #FFFFFF at 6.24:1 contrast (WCAG AA passes).

Color values

HEX	#A63F29
RGB	rgb(166, 63, 41)
HSL	hsl(11, 60%, 41%)
HSV	hsv(11, 75%, 65%)
CMYK	cmyk(0%, 62%, 75.3%, 34.9%)
CIE-LAB	lab(40.94, 41.21, 34.96)
CIE-LCH	lch(40.94, 54.04, 40.30°)
OKLab	oklab(50.65% 0.1172 0.0782)
OKLCH	oklch(50.65% 0.141 33.7)
XYZ	xyz(17.9055, 11.8246, 3.4369)
Luminance	0.1182 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A63F29 #2990A6

analogous

#A62951 #A63F29 #A67D29

triadic

#A63F29 #29A63F #3F29A6

tetradic

#A63F29 #51A629 #2990A6 #7D29A6

square

#A63F29 #51A629 #2990A6 #7D29A6

split-complementary

#A63F29 #29A67D #2951A6

monochromatic

#441A11 #752C1D #A63F29 #CF573D #DB816E

Accessibility & contrast

On white

6.24

#A63F29 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.36

#A63F29 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A63F29

6.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A63F29	#FFFFFF	#000000	##FFFFFF
##A63F29	1.00	6.24	3.36	6.24
#FFFFFF	6.24	1.00	21.00	1.00
#000000	3.36	21.00	1.00	21.00
##FFFFFF	6.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C5226

Deuteranopia (green-blind)

#756926

Tritanopia (blue-blind)

#B7263A

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #a63f29;
/* rgb */ color: rgb(166, 63, 41);
/* oklch */ color: oklch(50.6% 0.141 33.7);

Tailwind

colors: {
  custom: {
    50: '#c87864',
    500: '#a63f29',
    950: '#000000',
  },
}

SCSS

$custom: #a63f29;
$custom-light: #c87864;
$custom-dark: #000000;

JSON

{
  "hex": "#a63f29",
  "rgb": {
    "r": 166,
    "g": 63,
    "b": 41
  },
  "hsl": {
    "h": 10.56,
    "s": 60.386,
    "l": 40.588
  },
  "oklch": {
    "l": 0.50649,
    "c": 0.14085,
    "h": 33.7
  },
  "luminance": 0.11822
}

Semantic roles & 50–950 ramp

primary

#A63F29

secondary

#69B2C2

accent

#C7E444

background

#FDF7F6

surface

#FAEDEB

border

#D3C8C6

text

#140905

muted

#837B7A

Preview Lab

Preview with #A63F29

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

Preview Lab → · Contrast checker → · Palette generator →