#A03633#A03633

#A03633 is a mid, vivid red. Relative luminance 0.104; OKLCH L 48.6% C 0.141 H 25.5°. Best body text is #FFFFFF at 6.84:1 contrast (WCAG AA passes).

Color values

HEX	#A03633
RGB	rgb(160, 54, 51)
HSL	hsl(2, 52%, 41%)
HSV	hsv(2, 68%, 63%)
CMYK	cmyk(0%, 66.3%, 68.1%, 37.3%)
CIE-LAB	lab(38.47, 43.67, 25.99)
CIE-LCH	lch(38.47, 50.81, 30.76°)
OKLab	oklab(48.63% 0.1276 0.0608)
OKLCH	oklch(48.63% 0.141 25.5)
XYZ	xyz(16.4156, 10.3532, 4.2653)
Luminance	0.1035 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A03633 #339DA0

analogous

#A03367 #A03633 #A06D33

triadic

#A03633 #33A036 #3633A0

tetradic

#A03633 #67A033 #339DA0 #6D33A0

square

#A03633 #67A033 #339DA0 #6D33A0

split-complementary

#A03633 #33A06D #3367A0

monochromatic

#431715 #722624 #A03633 #C64E4B #D47C79

Accessibility & contrast

On white

6.84

#A03633 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.07

#A03633 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A03633

6.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A03633	#FFFFFF	#000000	##FFFFFF
##A03633	1.00	6.84	3.07	6.84
#FFFFFF	6.84	1.00	21.00	1.00
#000000	3.07	21.00	1.00	21.00
##FFFFFF	6.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#534C32

Deuteranopia (green-blind)

#6D6330

Tritanopia (blue-blind)

#B01C36

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #a03633;
/* rgb */ color: rgb(160, 54, 51);
/* oklch */ color: oklch(48.6% 0.141 25.5);

Tailwind

colors: {
  custom: {
    50: '#c3736b',
    500: '#a03633',
    950: '#000000',
  },
}

SCSS

$custom: #a03633;
$custom-light: #c3736b;
$custom-dark: #000000;

JSON

{
  "hex": "#a03633",
  "rgb": {
    "r": 160,
    "g": 54,
    "b": 51
  },
  "hsl": {
    "h": 1.651,
    "s": 51.659,
    "l": 41.373
  },
  "oklch": {
    "l": 0.48634,
    "c": 0.14132,
    "h": 25.5
  },
  "luminance": 0.10351
}

Semantic roles & 50–950 ramp

primary

#A03633

secondary

#72BBBD

accent

#D7DB4D

background

#FCF7F6

surface

#F9EDEB

border

#D2C8C6

text

#140806

muted

#827B7A

Preview Lab

Preview with #A03633

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

Preview Lab → · Contrast checker → · Palette generator →