#A63F34#A63F34

#A63F34 is a mid, vivid red. Relative luminance 0.119; OKLCH L 50.8% C 0.138 H 28.9°. Best body text is #FFFFFF at 6.21:1 contrast (WCAG AA passes).

Color values

HEX	#A63F34
RGB	rgb(166, 63, 52)
HSL	hsl(6, 52%, 43%)
HSV	hsv(6, 69%, 65%)
CMYK	cmyk(0%, 62%, 68.7%, 34.9%)
CIE-LAB	lab(41.08, 41.78, 28.79)
CIE-LCH	lch(41.08, 50.73, 34.57°)
OKLab	oklab(50.8% 0.1211 0.0669)
OKLCH	oklch(50.8% 0.138 28.9)
XYZ	xyz(18.1250, 11.9124, 4.5930)
Luminance	0.1191 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A63F34 #349BA6

analogous

#A63462 #A63F34 #A67834

triadic

#A63F34 #34A63F #3F34A6

tetradic

#A63F34 #62A634 #349BA6 #7834A6

square

#A63F34 #62A634 #349BA6 #7834A6

split-complementary

#A63F34 #34A678 #3462A6

monochromatic

#491C17 #772D25 #A63F34 #C85B4F #D7867E

Accessibility & contrast

On white

6.21

#A63F34 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.38

#A63F34 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A63F34

6.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A63F34	#FFFFFF	#000000	##FFFFFF
##A63F34	1.00	6.21	3.38	6.21
#FFFFFF	6.21	1.00	21.00	1.00
#000000	3.38	21.00	1.00	21.00
##FFFFFF	6.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A5332

Deuteranopia (green-blind)

#746931

Tritanopia (blue-blind)

#B6283D

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #a63f34;
/* rgb */ color: rgb(166, 63, 52);
/* oklch */ color: oklch(50.8% 0.138 28.9);

Tailwind

colors: {
  custom: {
    50: '#c7786c',
    500: '#a63f34',
    950: '#000000',
  },
}

SCSS

$custom: #a63f34;
$custom-light: #c7786c;
$custom-dark: #000000;

JSON

{
  "hex": "#a63f34",
  "rgb": {
    "r": 166,
    "g": 63,
    "b": 52
  },
  "hsl": {
    "h": 5.789,
    "s": 52.294,
    "l": 42.745
  },
  "oklch": {
    "l": 0.508,
    "c": 0.13835,
    "h": 28.9
  },
  "luminance": 0.1191
}

Semantic roles & 50–950 ramp

primary

#A63F34

secondary

#76B8C0

accent

#CEDC4C

background

#FDF7F6

surface

#FAEEEB

border

#D3C9C6

text

#140907

muted

#837B7A

Preview Lab

Preview with #A63F34

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

Preview Lab → · Contrast checker → · Palette generator →