#A5403F#A5403F

#A5403F is a mid, vivid red. Relative luminance 0.120; OKLCH L 51.0% C 0.134 H 23.7°. Best body text is #FFFFFF at 6.17:1 contrast (WCAG AA passes).

Color values

HEX	#A5403F
RGB	rgb(165, 64, 63)
HSL	hsl(1, 45%, 45%)
HSV	hsv(1, 62%, 65%)
CMYK	cmyk(0%, 61.2%, 61.8%, 35.3%)
CIE-LAB	lab(41.26, 41.64, 22.35)
CIE-LCH	lch(41.26, 47.26, 28.23°)
OKLab	oklab(50.96% 0.1229 0.0539)
OKLCH	oklch(50.96% 0.134 23.7)
XYZ	xyz(18.2493, 12.0274, 6.0622)
Luminance	0.1202 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A5403F #3FA4A5

analogous

#A53F71 #A5403F #A5733F

triadic

#A5403F #3FA540 #403FA5

tetradic

#A5403F #71A53F #3FA4A5 #733FA5

square

#A5403F #71A53F #3FA4A5 #733FA5

split-complementary

#A5403F #3FA573 #3F71A5

monochromatic

#4C1E1D #792F2E #A5403F #C2605F #D38C8C

Accessibility & contrast

On white

6.17

#A5403F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.41

#A5403F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A5403F

6.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A5403F	#FFFFFF	#000000	##FFFFFF
##A5403F	1.00	6.17	3.41	6.17
#FFFFFF	6.17	1.00	21.00	1.00
#000000	3.41	21.00	1.00	21.00
##FFFFFF	6.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A543E

Deuteranopia (green-blind)

#73693C

Tritanopia (blue-blind)

#B52C41

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #a5403f;
/* rgb */ color: rgb(165, 64, 63);
/* oklch */ color: oklch(51.0% 0.134 23.7);

Tailwind

colors: {
  custom: {
    50: '#c57974',
    500: '#a5403f',
    950: '#000000',
  },
}

SCSS

$custom: #a5403f;
$custom-light: #c57974;
$custom-dark: #000000;

JSON

{
  "hex": "#a5403f",
  "rgb": {
    "r": 165,
    "g": 64,
    "b": 63
  },
  "hsl": {
    "h": 0.588,
    "s": 44.737,
    "l": 44.706
  },
  "oklch": {
    "l": 0.50962,
    "c": 0.13422,
    "h": 23.7
  },
  "luminance": 0.12025
}

Semantic roles & 50–950 ramp

primary

#A5403F

secondary

#82BDBE

accent

#D3D453

background

#FCF7F7

surface

#F9EEED

border

#D2C9C8

text

#140908

muted

#827B7B

Preview Lab

Preview with #A5403F

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

Preview Lab → · Contrast checker → · Palette generator →