#A5303A#A5303A

#A5303A is a mid, vivid red. Relative luminance 0.104; OKLCH L 48.9% C 0.152 H 20.2°. Best body text is #FFFFFF at 6.81:1 contrast (WCAG AA passes).

Color values

HEX	#A5303A
RGB	rgb(165, 48, 58)
HSL	hsl(355, 55%, 42%)
HSV	hsv(355, 71%, 65%)
CMYK	cmyk(0%, 70.9%, 64.8%, 35.3%)
CIE-LAB	lab(38.59, 48.28, 22.02)
CIE-LCH	lch(38.59, 53.07, 24.52°)
OKLab	oklab(48.93% 0.143 0.0526)
OKLCH	oklch(48.93% 0.152 20.2)
XYZ	xyz(17.3395, 10.4212, 5.1006)
Luminance	0.1042 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A5303A #30A59B

analogous

#A53075 #A5303A #A56130

triadic

#A5303A #3AA530 #303AA5

tetradic

#A5303A #75A530 #30A59B #6130A5

square

#A5303A #75A530 #30A59B #6130A5

split-complementary

#A5303A #30A561 #3075A5

monochromatic

#461419 #762229 #A5303A #CA4853 #D87880

Accessibility & contrast

On white

6.81

#A5303A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.08

#A5303A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A5303A

6.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A5303A	#FFFFFF	#000000	##FFFFFF
##A5303A	1.00	6.81	3.08	6.81
#FFFFFF	6.81	1.00	21.00	1.00
#000000	3.08	21.00	1.00	21.00
##FFFFFF	6.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#504B3A

Deuteranopia (green-blind)

#6D6437

Tritanopia (blue-blind)

#B50E35

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #a5303a;
/* rgb */ color: rgb(165, 48, 58);
/* oklch */ color: oklch(48.9% 0.152 20.2);

Tailwind

colors: {
  custom: {
    50: '#c77070',
    500: '#a5303a',
    950: '#000000',
  },
}

SCSS

$custom: #a5303a;
$custom-light: #c77070;
$custom-dark: #000000;

JSON

{
  "hex": "#a5303a",
  "rgb": {
    "r": 165,
    "g": 48,
    "b": 58
  },
  "hsl": {
    "h": 354.872,
    "s": 54.93,
    "l": 41.765
  },
  "oklch": {
    "l": 0.48932,
    "c": 0.15238,
    "h": 20.2
  },
  "luminance": 0.10419
}

Semantic roles & 50–950 ramp

primary

#A5303A

secondary

#71C0B9

accent

#DED24A

background

#FDF7F6

surface

#FAEDEC

border

#D3C8C7

text

#140807

muted

#837B7A

Preview Lab

Preview with #A5303A

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

Preview Lab → · Contrast checker → · Palette generator →