#A63A29#A63A29

#A63A29 is a mid, vivid red. Relative luminance 0.113; OKLCH L 50.0% C 0.146 H 31.5°. Best body text is #FFFFFF at 6.44:1 contrast (WCAG AA passes).

Color values

HEX	#A63A29
RGB	rgb(166, 58, 41)
HSL	hsl(8, 60%, 41%)
HSV	hsv(8, 75%, 65%)
CMYK	cmyk(0%, 65.1%, 75.3%, 34.9%)
CIE-LAB	lab(40.07, 43.51, 34.02)
CIE-LCH	lch(40.07, 55.23, 38.02°)
OKLab	oklab(50% 0.1243 0.0762)
OKLCH	oklch(50% 0.146 31.5)
XYZ	xyz(17.6411, 11.2957, 3.3488)
Luminance	0.1129 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A63A29 #2995A6

analogous

#A62956 #A63A29 #A67829

triadic

#A63A29 #29A63A #3A29A6

tetradic

#A63A29 #56A629 #2995A6 #7829A6

square

#A63A29 #56A629 #2995A6 #7829A6

split-complementary

#A63A29 #29A678 #2956A6

monochromatic

#441811 #75291D #A63A29 #CF513D #DB7D6E

Accessibility & contrast

On white

6.44

#A63A29 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.26

#A63A29 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A63A29

6.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A63A29	#FFFFFF	#000000	##FFFFFF
##A63A29	1.00	6.44	3.26	6.44
#FFFFFF	6.44	1.00	21.00	1.00
#000000	3.26	21.00	1.00	21.00
##FFFFFF	6.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#584F26

Deuteranopia (green-blind)

#736725

Tritanopia (blue-blind)

#B71E37

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #a63a29;
/* rgb */ color: rgb(166, 58, 41);
/* oklch */ color: oklch(50.0% 0.146 31.5);

Tailwind

colors: {
  custom: {
    50: '#c87564',
    500: '#a63a29',
    950: '#000000',
  },
}

SCSS

$custom: #a63a29;
$custom-light: #c87564;
$custom-dark: #000000;

JSON

{
  "hex": "#a63a29",
  "rgb": {
    "r": 166,
    "g": 58,
    "b": 41
  },
  "hsl": {
    "h": 8.16,
    "s": 60.386,
    "l": 40.588
  },
  "oklch": {
    "l": 0.49999,
    "c": 0.14577,
    "h": 31.5
  },
  "luminance": 0.11293
}

Semantic roles & 50–950 ramp

primary

#A63A29

secondary

#69B6C2

accent

#CEE444

background

#FDF7F6

surface

#FAEDEB

border

#D3C8C6

text

#150905

muted

#837B7A

Preview Lab

Preview with #A63A29

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

Preview Lab → · Contrast checker → · Palette generator →