#A63C30#A63C30

#A63C30 is a mid, vivid red. Relative luminance 0.116; OKLCH L 50.3% C 0.142 H 29.4°. Best body text is #FFFFFF at 6.34:1 contrast (WCAG AA passes).

Color values

HEX	#A63C30
RGB	rgb(166, 60, 48)
HSL	hsl(6, 55%, 42%)
HSV	hsv(6, 71%, 65%)
CMYK	cmyk(0%, 63.9%, 71.1%, 34.9%)
CIE-LAB	lab(40.50, 42.95, 30.46)
CIE-LCH	lch(40.50, 52.65, 35.35°)
OKLab	oklab(50.35% 0.124 0.0699)
OKLCH	oklch(50.35% 0.142 29.4)
XYZ	xyz(17.8771, 11.5546, 4.0846)
Luminance	0.1155 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A63C30 #309AA6

analogous

#A6305F #A63C30 #A67730

triadic

#A63C30 #30A63C #3C30A6

tetradic

#A63C30 #5FA630 #309AA6 #7730A6

square

#A63C30 #5FA630 #309AA6 #7730A6

split-complementary

#A63C30 #30A677 #305FA6

monochromatic

#471A15 #772B22 #A63C30 #CA5649 #D88278

Accessibility & contrast

On white

6.34

#A63C30 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.31

#A63C30 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A63C30

6.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A63C30	#FFFFFF	#000000	##FFFFFF
##A63C30	1.00	6.34	3.31	6.34
#FFFFFF	6.34	1.00	21.00	1.00
#000000	3.31	21.00	1.00	21.00
##FFFFFF	6.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#59512E

Deuteranopia (green-blind)

#73682D

Tritanopia (blue-blind)

#B6233A

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #a63c30;
/* rgb */ color: rgb(166, 60, 48);
/* oklch */ color: oklch(50.3% 0.142 29.4);

Tailwind

colors: {
  custom: {
    50: '#c77769',
    500: '#a63c30',
    950: '#000000',
  },
}

SCSS

$custom: #a63c30;
$custom-light: #c77769;
$custom-dark: #000000;

JSON

{
  "hex": "#a63c30",
  "rgb": {
    "r": 166,
    "g": 60,
    "b": 48
  },
  "hsl": {
    "h": 6.102,
    "s": 55.14,
    "l": 41.961
  },
  "oklch": {
    "l": 0.50347,
    "c": 0.1423,
    "h": 29.4
  },
  "luminance": 0.11552
}

Semantic roles & 50–950 ramp

primary

#A63C30

secondary

#71B8C0

accent

#CFDE49

background

#FDF7F6

surface

#FAEDEB

border

#D3C8C6

text

#140906

muted

#837B7A

Preview Lab

Preview with #A63C30

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

Preview Lab → · Contrast checker → · Palette generator →