#A63D30#A63D30

#A63D30 is a mid, vivid red. Relative luminance 0.117; OKLCH L 50.5% C 0.141 H 29.9°. Best body text is #FFFFFF at 6.30:1 contrast (WCAG AA passes).

Color values

HEX	#A63D30
RGB	rgb(166, 61, 48)
HSL	hsl(7, 55%, 42%)
HSV	hsv(7, 71%, 65%)
CMYK	cmyk(0%, 63.3%, 71.1%, 34.9%)
CIE-LAB	lab(40.67, 42.49, 30.66)
CIE-LCH	lch(40.67, 52.39, 35.82°)
OKLab	oklab(50.48% 0.1225 0.0703)
OKLCH	oklch(50.48% 0.141 29.9)
XYZ	xyz(17.9300, 11.6604, 4.1023)
Luminance	0.1166 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A63D30 #3099A6

analogous

#A6305E #A63D30 #A67830

triadic

#A63D30 #30A63D #3D30A6

tetradic

#A63D30 #5EA630 #3099A6 #7830A6

square

#A63D30 #5EA630 #3099A6 #7830A6

split-complementary

#A63D30 #30A678 #305EA6

monochromatic

#471A15 #772C22 #A63D30 #CA5749 #D88378

Accessibility & contrast

On white

6.30

#A63D30 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.33

#A63D30 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A63D30

6.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A63D30	#FFFFFF	#000000	##FFFFFF
##A63D30	1.00	6.30	3.33	6.30
#FFFFFF	6.30	1.00	21.00	1.00
#000000	3.33	21.00	1.00	21.00
##FFFFFF	6.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A512E

Deuteranopia (green-blind)

#74682D

Tritanopia (blue-blind)

#B6243B

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #a63d30;
/* rgb */ color: rgb(166, 61, 48);
/* oklch */ color: oklch(50.5% 0.141 29.9);

Tailwind

colors: {
  custom: {
    50: '#c77769',
    500: '#a63d30',
    950: '#000000',
  },
}

SCSS

$custom: #a63d30;
$custom-light: #c77769;
$custom-dark: #000000;

JSON

{
  "hex": "#a63d30",
  "rgb": {
    "r": 166,
    "g": 61,
    "b": 48
  },
  "hsl": {
    "h": 6.61,
    "s": 55.14,
    "l": 41.961
  },
  "oklch": {
    "l": 0.50477,
    "c": 0.14128,
    "h": 29.9
  },
  "luminance": 0.11658
}

Semantic roles & 50–950 ramp

primary

#A63D30

secondary

#71B8C0

accent

#CEDE49

background

#FDF7F6

surface

#FAEDEB

border

#D3C8C6

text

#140906

muted

#837B7A

Preview Lab

Preview with #A63D30

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

Preview Lab → · Contrast checker → · Palette generator →