#A63130#A63130

#A63130 is a mid, vivid red. Relative luminance 0.105; OKLCH L 49.0% C 0.153 H 25.2°. Best body text is #FFFFFF at 6.77:1 contrast (WCAG AA passes).

Color values

HEX	#A63130
RGB	rgb(166, 49, 48)
HSL	hsl(1, 55%, 42%)
HSV	hsv(1, 71%, 65%)
CMYK	cmyk(0%, 70.5%, 71.1%, 34.9%)
CIE-LAB	lab(38.76, 47.65, 28.42)
CIE-LCH	lch(38.76, 55.48, 30.81°)
OKLab	oklab(49.04% 0.1388 0.0654)
OKLCH	oklch(49.04% 0.153 25.2)
XYZ	xyz(17.3596, 10.5196, 3.9121)
Luminance	0.1052 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A63130 #30A5A6

analogous

#A6306A #A63130 #A66C30

triadic

#A63130 #30A631 #3130A6

tetradic

#A63130 #6AA630 #30A5A6 #6C30A6

square

#A63130 #6AA630 #30A5A6 #6C30A6

split-complementary

#A63130 #30A66C #306AA6

monochromatic

#471515 #772322 #A63130 #CA4A49 #D87978

Accessibility & contrast

On white

6.77

#A63130 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.10

#A63130 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A63130

6.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A63130	#FFFFFF	#000000	##FFFFFF
##A63130	1.00	6.77	3.10	6.77
#FFFFFF	6.77	1.00	21.00	1.00
#000000	3.10	21.00	1.00	21.00
##FFFFFF	6.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#524B2F

Deuteranopia (green-blind)

#6F652C

Tritanopia (blue-blind)

#B70A32

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #a63130;
/* rgb */ color: rgb(166, 49, 48);
/* oklch */ color: oklch(49.0% 0.153 25.2);

Tailwind

colors: {
  custom: {
    50: '#c87168',
    500: '#a63130',
    950: '#000000',
  },
}

SCSS

$custom: #a63130;
$custom-light: #c87168;
$custom-dark: #000000;

JSON

{
  "hex": "#a63130",
  "rgb": {
    "r": 166,
    "g": 49,
    "b": 48
  },
  "hsl": {
    "h": 0.508,
    "s": 55.14,
    "l": 41.961
  },
  "oklch": {
    "l": 0.49042,
    "c": 0.15341,
    "h": 25.2
  },
  "luminance": 0.10517
}

Semantic roles & 50–950 ramp

primary

#A63130

secondary

#71C0C0

accent

#DDDE49

background

#FDF7F6

surface

#FAEDEB

border

#D3C8C6

text

#140806

muted

#837B7A

Preview Lab

Preview with #A63130

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

Preview Lab → · Contrast checker → · Palette generator →