#A63525#A63525

#A63525 is a mid, vivid red. Relative luminance 0.108; OKLCH L 49.3% C 0.151 H 31.0°. Best body text is #FFFFFF at 6.65:1 contrast (WCAG AA passes).

Color values

HEX	#A63525
RGB	rgb(166, 53, 37)
HSL	hsl(7, 64%, 40%)
HSV	hsv(7, 78%, 65%)
CMYK	cmyk(0%, 68.1%, 77.7%, 34.9%)
CIE-LAB	lab(39.22, 45.52, 35.35)
CIE-LCH	lch(39.22, 57.63, 37.83°)
OKLab	oklab(49.35% 0.1298 0.078)
OKLCH	oklch(49.35% 0.151 31)
XYZ	xyz(17.3349, 10.7893, 2.9197)
Luminance	0.1079 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A63525 #2596A6

analogous

#A62555 #A63525 #A67625

triadic

#A63525 #25A635 #3525A6

tetradic

#A63525 #55A625 #2596A6 #7625A6

square

#A63525 #55A625 #2596A6 #7625A6

split-complementary

#A63525 #25A676 #2555A6

monochromatic

#42150F #74251A #A63525 #D24936 #DD7768

Accessibility & contrast

On white

6.65

#A63525 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.16

#A63525 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A63525

6.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A63525	#FFFFFF	#000000	##FFFFFF
##A63525	1.00	6.65	3.16	6.65
#FFFFFF	6.65	1.00	21.00	1.00
#000000	3.16	21.00	1.00	21.00
##FFFFFF	6.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#554D22

Deuteranopia (green-blind)

#716621

Tritanopia (blue-blind)

#B71232

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #a63525;
/* rgb */ color: rgb(166, 53, 37);
/* oklch */ color: oklch(49.3% 0.151 31.0);

Tailwind

colors: {
  custom: {
    50: '#c87361',
    500: '#a63525',
    950: '#000000',
  },
}

SCSS

$custom: #a63525;
$custom-light: #c87361;
$custom-dark: #000000;

JSON

{
  "hex": "#a63525",
  "rgb": {
    "r": 166,
    "g": 53,
    "b": 37
  },
  "hsl": {
    "h": 7.442,
    "s": 63.547,
    "l": 39.804
  },
  "oklch": {
    "l": 0.49346,
    "c": 0.15139,
    "h": 31
  },
  "luminance": 0.10787
}

Semantic roles & 50–950 ramp

primary

#A63525

secondary

#64B7C3

accent

#D2E741

background

#FDF7F5

surface

#FAEDE9

border

#D3C8C5

text

#150805

muted

#837B79

Preview Lab

Preview with #A63525

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

Preview Lab → · Contrast checker → · Palette generator →