#A7403B#A7403B

#A7403B is a mid, vivid red. Relative luminance 0.122; OKLCH L 51.2% C 0.137 H 25.9°. Best body text is #FFFFFF at 6.11:1 contrast (WCAG AA passes).

Color values

HEX	#A7403B
RGB	rgb(167, 64, 59)
HSL	hsl(3, 48%, 44%)
HSV	hsv(3, 65%, 65%)
CMYK	cmyk(0%, 61.7%, 64.7%, 34.5%)
CIE-LAB	lab(41.53, 42.10, 25.20)
CIE-LCH	lch(41.53, 49.06, 30.90°)
OKLab	oklab(51.21% 0.1234 0.0598)
OKLCH	oklch(51.21% 0.137 25.9)
XYZ	xyz(18.5609, 12.2005, 5.5144)
Luminance	0.1220 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A7403B #3BA2A7

analogous

#A73B6C #A7403B #A7763B

triadic

#A7403B #3BA740 #403BA7

tetradic

#A7403B #6CA73B #3BA2A7 #763BA7

square

#A7403B #6CA73B #3BA2A7 #763BA7

split-complementary

#A7403B #3BA776 #3B6CA7

monochromatic

#4D1D1B #7A2F2B #A7403B #C55F5A #D58B88

Accessibility & contrast

On white

6.11

#A7403B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.44

#A7403B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A7403B

6.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A7403B	#FFFFFF	#000000	##FFFFFF
##A7403B	1.00	6.11	3.44	6.11
#FFFFFF	6.11	1.00	21.00	1.00
#000000	3.44	21.00	1.00	21.00
##FFFFFF	6.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B543A

Deuteranopia (green-blind)

#746A38

Tritanopia (blue-blind)

#B72B40

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #a7403b;
/* rgb */ color: rgb(167, 64, 59);
/* oklch */ color: oklch(51.2% 0.137 25.9);

Tailwind

colors: {
  custom: {
    50: '#c77971',
    500: '#a7403b',
    950: '#000000',
  },
}

SCSS

$custom: #a7403b;
$custom-light: #c77971;
$custom-dark: #000000;

JSON

{
  "hex": "#a7403b",
  "rgb": {
    "r": 167,
    "g": 64,
    "b": 59
  },
  "hsl": {
    "h": 2.778,
    "s": 47.788,
    "l": 44.314
  },
  "oklch": {
    "l": 0.51211,
    "c": 0.13712,
    "h": 25.9
  },
  "luminance": 0.12198
}

Semantic roles & 50–950 ramp

primary

#A7403B

secondary

#7FBCBF

accent

#D1D750

background

#FDF7F6

surface

#FAEEEC

border

#D3C9C7

text

#140907

muted

#837B7A

Preview Lab

Preview with #A7403B

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

Preview Lab → · Contrast checker → · Palette generator →