#A63523#A63523

#A63523 is a mid, vivid red. Relative luminance 0.108; OKLCH L 49.3% C 0.152 H 31.7°. Best body text is #FFFFFF at 6.66:1 contrast (WCAG AA passes).

Color values

HEX	#A63523
RGB	rgb(166, 53, 35)
HSL	hsl(8, 65%, 39%)
HSV	hsv(8, 79%, 65%)
CMYK	cmyk(0%, 68.1%, 78.9%, 34.9%)
CIE-LAB	lab(39.20, 45.44, 36.43)
CIE-LCH	lch(39.20, 58.24, 38.72°)
OKLab	oklab(49.32% 0.1291 0.0798)
OKLCH	oklch(49.32% 0.152 31.7)
XYZ	xyz(17.3043, 10.7771, 2.7588)
Luminance	0.1077 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A63523 #2394A6

analogous

#A62353 #A63523 #A67723

triadic

#A63523 #23A635 #3523A6

tetradic

#A63523 #53A623 #2394A6 #7723A6

square

#A63523 #53A623 #2394A6 #7723A6

split-complementary

#A63523 #23A677 #2353A6

monochromatic

#41150E #732518 #A63523 #D44932 #DF7665

Accessibility & contrast

On white

6.66

#A63523 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.16

#A63523 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A63523

6.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A63523	#FFFFFF	#000000	##FFFFFF
##A63523	1.00	6.66	3.16	6.66
#FFFFFF	6.66	1.00	21.00	1.00
#000000	3.16	21.00	1.00	21.00
##FFFFFF	6.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#564D20

Deuteranopia (green-blind)

#72661E

Tritanopia (blue-blind)

#B71132

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #a63523;
/* rgb */ color: rgb(166, 53, 35);
/* oklch */ color: oklch(49.3% 0.152 31.7);

Tailwind

colors: {
  custom: {
    50: '#c9735f',
    500: '#a63523',
    950: '#000000',
  },
}

SCSS

$custom: #a63523;
$custom-light: #c9735f;
$custom-dark: #000000;

JSON

{
  "hex": "#a63523",
  "rgb": {
    "r": 166,
    "g": 53,
    "b": 35
  },
  "hsl": {
    "h": 8.244,
    "s": 65.174,
    "l": 39.412
  },
  "oklch": {
    "l": 0.49324,
    "c": 0.15177,
    "h": 31.7
  },
  "luminance": 0.10775
}

Semantic roles & 50–950 ramp

primary

#A63523

secondary

#61B6C4

accent

#D1E840

background

#FDF7F5

surface

#FAEDE9

border

#D3C8C5

text

#150805

muted

#837B79

Preview Lab

Preview with #A63523

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

Preview Lab → · Contrast checker → · Palette generator →