#A03720#A03720

#A03720 is a mid, vivid red. Relative luminance 0.103; OKLCH L 48.5% C 0.144 H 33.9°. Best body text is #FFFFFF at 6.86:1 contrast (WCAG AA passes).

Color values

HEX	#A03720
RGB	rgb(160, 55, 32)
HSL	hsl(11, 67%, 38%)
HSV	hsv(11, 80%, 63%)
CMYK	cmyk(0%, 65.6%, 80%, 37.3%)
CIE-LAB	lab(38.40, 42.33, 36.89)
CIE-LCH	lch(38.40, 56.14, 41.07°)
OKLab	oklab(48.51% 0.1195 0.0803)
OKLCH	oklch(48.51% 0.144 33.9)
XYZ	xyz(16.1259, 10.3126, 2.5076)
Luminance	0.1031 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A03720 #2089A0

analogous

#A02049 #A03720 #A07720

triadic

#A03720 #20A037 #3720A0

tetradic

#A03720 #49A020 #2089A0 #7720A0

square

#A03720 #49A020 #2089A0 #7720A0

split-complementary

#A03720 #20A077 #2049A0

monochromatic

#3A140C #6D2516 #A03720 #D3492A #DE735C

Accessibility & contrast

On white

6.86

#A03720 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.06

#A03720 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A03720

6.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A03720	#FFFFFF	#000000	##FFFFFF
##A03720	1.00	6.86	3.06	6.86
#FFFFFF	6.86	1.00	21.00	1.00
#000000	3.06	21.00	1.00	21.00
##FFFFFF	6.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#554C1D

Deuteranopia (green-blind)

#6F631C

Tritanopia (blue-blind)

#B01A32

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #a03720;
/* rgb */ color: rgb(160, 55, 32);
/* oklch */ color: oklch(48.5% 0.144 33.9);

Tailwind

colors: {
  custom: {
    50: '#c4735d',
    500: '#a03720',
    950: '#000000',
  },
}

SCSS

$custom: #a03720;
$custom-light: #c4735d;
$custom-dark: #000000;

JSON

{
  "hex": "#a03720",
  "rgb": {
    "r": 160,
    "g": 55,
    "b": 32
  },
  "hsl": {
    "h": 10.781,
    "s": 66.667,
    "l": 37.647
  },
  "oklch": {
    "l": 0.48505,
    "c": 0.14398,
    "h": 33.9
  },
  "luminance": 0.1031
}

Semantic roles & 50–950 ramp

primary

#A03720

secondary

#59B0C3

accent

#CBEA3E

background

#FDF7F5

surface

#FAEDE9

border

#D3C8C5

text

#140804

muted

#837B79

Preview Lab

Preview with #A03720

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

Preview Lab → · Contrast checker → · Palette generator →