#A53739#A53739

#A53739 is a mid, vivid red. Relative luminance 0.110; OKLCH L 49.7% C 0.145 H 23.1°. Best body text is #FFFFFF at 6.55:1 contrast (WCAG AA passes).

Color values

HEX	#A53739
RGB	rgb(165, 55, 57)
HSL	hsl(359, 50%, 43%)
HSV	hsv(359, 67%, 65%)
CMYK	cmyk(0%, 66.7%, 65.5%, 35.3%)
CIE-LAB	lab(39.63, 45.33, 23.96)
CIE-LCH	lch(39.63, 51.27, 27.86°)
OKLab	oklab(49.71% 0.1334 0.0569)
OKLCH	oklch(49.71% 0.145 23.1)
XYZ	xyz(17.6235, 11.0296, 5.0710)
Luminance	0.1103 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A53739 #37A5A3

analogous

#A53770 #A53739 #A56C37

triadic

#A53739 #39A537 #3739A5

tetradic

#A53739 #70A537 #37A5A3 #6C37A5

square

#A53739 #70A537 #37A5A3 #6C37A5

split-complementary

#A53739 #37A56C #3770A5

monochromatic

#491819 #772829 #A53739 #C65355 #D58183

Accessibility & contrast

On white

6.55

#A53739 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.21

#A53739 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A53739

6.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A53739	#FFFFFF	#000000	##FFFFFF
##A53739	1.00	6.55	3.21	6.55
#FFFFFF	6.55	1.00	21.00	1.00
#000000	3.21	21.00	1.00	21.00
##FFFFFF	6.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#544E38

Deuteranopia (green-blind)

#706636

Tritanopia (blue-blind)

#B51D39

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #a53739;
/* rgb */ color: rgb(165, 55, 57);
/* oklch */ color: oklch(49.7% 0.145 23.1);

Tailwind

colors: {
  custom: {
    50: '#c6746f',
    500: '#a53739',
    950: '#000000',
  },
}

SCSS

$custom: #a53739;
$custom-light: #c6746f;
$custom-dark: #000000;

JSON

{
  "hex": "#a53739",
  "rgb": {
    "r": 165,
    "g": 55,
    "b": 57
  },
  "hsl": {
    "h": 358.909,
    "s": 50,
    "l": 43.137
  },
  "oklch": {
    "l": 0.49705,
    "c": 0.14504,
    "h": 23.1
  },
  "luminance": 0.11027
}

Semantic roles & 50–950 ramp

primary

#A53739

secondary

#79BFBD

accent

#DAD74E

background

#FDF7F6

surface

#FAEDEC

border

#D3C8C7

text

#140907

muted

#837B7A

Preview Lab

Preview with #A53739

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

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