#A5303B#A5303B

#A5303B is a mid, vivid red. Relative luminance 0.104; OKLCH L 49.0% C 0.152 H 19.7°. Best body text is #FFFFFF at 6.81:1 contrast (WCAG AA passes).

Color values

HEX	#A5303B
RGB	rgb(165, 48, 59)
HSL	hsl(354, 55%, 42%)
HSV	hsv(354, 71%, 65%)
CMYK	cmyk(0%, 70.9%, 64.2%, 35.3%)
CIE-LAB	lab(38.61, 48.35, 21.42)
CIE-LCH	lch(38.61, 52.88, 23.90°)
OKLab	oklab(48.95% 0.1434 0.0514)
OKLCH	oklch(48.95% 0.152 19.7)
XYZ	xyz(17.3652, 10.4315, 5.2359)
Luminance	0.1043 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A5303B #30A59A

analogous

#A53076 #A5303B #A56030

triadic

#A5303B #3BA530 #303BA5

tetradic

#A5303B #76A530 #30A59A #6030A5

square

#A5303B #76A530 #30A59A #6030A5

split-complementary

#A5303B #30A560 #3076A5

monochromatic

#461419 #76222A #A5303B #CA4855 #D87881

Accessibility & contrast

On white

6.81

#A5303B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.09

#A5303B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A5303B

6.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A5303B	#FFFFFF	#000000	##FFFFFF
##A5303B	1.00	6.81	3.09	6.81
#FFFFFF	6.81	1.00	21.00	1.00
#000000	3.09	21.00	1.00	21.00
##FFFFFF	6.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#504B3B

Deuteranopia (green-blind)

#6D6438

Tritanopia (blue-blind)

#B50E35

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #a5303b;
/* rgb */ color: rgb(165, 48, 59);
/* oklch */ color: oklch(49.0% 0.152 19.7);

Tailwind

colors: {
  custom: {
    50: '#c67070',
    500: '#a5303b',
    950: '#000000',
  },
}

SCSS

$custom: #a5303b;
$custom-light: #c67070;
$custom-dark: #000000;

JSON

{
  "hex": "#a5303b",
  "rgb": {
    "r": 165,
    "g": 48,
    "b": 59
  },
  "hsl": {
    "h": 354.359,
    "s": 54.93,
    "l": 41.765
  },
  "oklch": {
    "l": 0.48951,
    "c": 0.15233,
    "h": 19.7
  },
  "luminance": 0.10429
}

Semantic roles & 50–950 ramp

primary

#A5303B

secondary

#71C0B8

accent

#DED04A

background

#FDF7F6

surface

#FAEDEC

border

#D3C8C7

text

#140807

muted

#837B7A

Preview Lab

Preview with #A5303B

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

Preview Lab → · Contrast checker → · Palette generator →