#A0403A#A0403A

#A0403A is a mid, vivid red. Relative luminance 0.114; OKLCH L 50.1% C 0.129 H 26.3°. Best body text is #FFFFFF at 6.38:1 contrast (WCAG AA passes).

Color values

HEX	#A0403A
RGB	rgb(160, 64, 58)
HSL	hsl(4, 47%, 43%)
HSV	hsv(4, 64%, 63%)
CMYK	cmyk(0%, 60%, 63.8%, 37.3%)
CIE-LAB	lab(40.33, 39.46, 24.03)
CIE-LCH	lch(40.33, 46.20, 31.34°)
OKLab	oklab(50.07% 0.1157 0.0573)
OKLCH	oklch(50.07% 0.129 26.3)
XYZ	xyz(17.0959, 11.4481, 5.3116)
Luminance	0.1145 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A0403A #3A9AA0

analogous

#A03A67 #A0403A #A0733A

triadic

#A0403A #3AA040 #403AA0

tetradic

#A0403A #67A03A #3A9AA0 #733AA0

square

#A0403A #67A03A #3A9AA0 #733AA0

split-complementary

#A0403A #3AA073 #3A67A0

monochromatic

#461C19 #732E2A #A0403A #C25C56 #D28783

Accessibility & contrast

On white

6.38

#A0403A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.29

#A0403A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A0403A

6.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A0403A	#FFFFFF	#000000	##FFFFFF
##A0403A	1.00	6.38	3.29	6.38
#FFFFFF	6.38	1.00	21.00	1.00
#000000	3.29	21.00	1.00	21.00
##FFFFFF	6.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#595239

Deuteranopia (green-blind)

#716738

Tritanopia (blue-blind)

#AF2D3F

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #a0403a;
/* rgb */ color: rgb(160, 64, 58);
/* oklch */ color: oklch(50.1% 0.129 26.3);

Tailwind

colors: {
  custom: {
    50: '#c27970',
    500: '#a0403a',
    950: '#000000',
  },
}

SCSS

$custom: #a0403a;
$custom-light: #c27970;
$custom-dark: #000000;

JSON

{
  "hex": "#a0403a",
  "rgb": {
    "r": 160,
    "g": 64,
    "b": 58
  },
  "hsl": {
    "h": 3.529,
    "s": 46.789,
    "l": 42.745
  },
  "oklch": {
    "l": 0.50066,
    "c": 0.12915,
    "h": 26.3
  },
  "luminance": 0.11446
}

Semantic roles & 50–950 ramp

primary

#A0403A

secondary

#7AB8BC

accent

#CFD651

background

#FCF7F6

surface

#F9EEEC

border

#D2C9C7

text

#130907

muted

#827B7A

Preview Lab

Preview with #A0403A

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

Preview Lab → · Contrast checker → · Palette generator →