#A63E25#A63E25

#A63E25 is a mid, vivid red. Relative luminance 0.117; OKLCH L 50.5% C 0.143 H 34.8°. Best body text is #FFFFFF at 6.29:1 contrast (WCAG AA passes).

Color values

HEX	#A63E25
RGB	rgb(166, 62, 37)
HSL	hsl(12, 64%, 40%)
HSV	hsv(12, 78%, 65%)
CMYK	cmyk(0%, 62.7%, 77.7%, 34.9%)
CIE-LAB	lab(40.72, 41.51, 36.92)
CIE-LCH	lch(40.72, 55.55, 41.65°)
OKLab	oklab(50.47% 0.1173 0.0814)
OKLCH	oklch(50.47% 0.143 34.8)
XYZ	xyz(17.7844, 11.6883, 3.0695)
Luminance	0.1169 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A63E25 #258DA6

analogous

#A6254C #A63E25 #A67F25

triadic

#A63E25 #25A63E #3E25A6

tetradic

#A63E25 #4CA625 #258DA6 #7F25A6

square

#A63E25 #4CA625 #258DA6 #7F25A6

split-complementary

#A63E25 #25A67F #254CA6

monochromatic

#42190F #742B1A #A63E25 #D25436 #DD7F68

Accessibility & contrast

On white

6.29

#A63E25 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.34

#A63E25 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A63E25

6.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A63E25	#FFFFFF	#000000	##FFFFFF
##A63E25	1.00	6.29	3.34	6.29
#FFFFFF	6.29	1.00	21.00	1.00
#000000	3.34	21.00	1.00	21.00
##FFFFFF	6.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B5222

Deuteranopia (green-blind)

#756921

Tritanopia (blue-blind)

#B72439

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #a63e25;
/* rgb */ color: rgb(166, 62, 37);
/* oklch */ color: oklch(50.5% 0.143 34.8);

Tailwind

colors: {
  custom: {
    50: '#c87861',
    500: '#a63e25',
    950: '#000000',
  },
}

SCSS

$custom: #a63e25;
$custom-light: #c87861;
$custom-dark: #000000;

JSON

{
  "hex": "#a63e25",
  "rgb": {
    "r": 166,
    "g": 62,
    "b": 37
  },
  "hsl": {
    "h": 11.628,
    "s": 63.547,
    "l": 39.804
  },
  "oklch": {
    "l": 0.50469,
    "c": 0.14279,
    "h": 34.8
  },
  "luminance": 0.11686
}

Semantic roles & 50–950 ramp

primary

#A63E25

secondary

#64B1C3

accent

#C7E741

background

#FDF7F5

surface

#FAEDEA

border

#D3C8C6

text

#150905

muted

#837B79

Preview Lab

Preview with #A63E25

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

Preview Lab → · Contrast checker → · Palette generator →