#A63E1E#A63E1E

#A63E1E is a mid, vivid red. Relative luminance 0.116; OKLCH L 50.4% C 0.144 H 37.1°. Best body text is #FFFFFF at 6.31:1 contrast (WCAG AA passes).

Color values

HEX	#A63E1E
RGB	rgb(166, 62, 30)
HSL	hsl(14, 69%, 38%)
HSV	hsv(14, 82%, 65%)
CMYK	cmyk(0%, 62.7%, 81.9%, 34.9%)
CIE-LAB	lab(40.65, 41.26, 40.49)
CIE-LCH	lch(40.65, 57.81, 44.46°)
OKLab	oklab(50.4% 0.1152 0.0871)
OKLCH	oklch(50.4% 0.144 37.1)
XYZ	xyz(17.6848, 11.6485, 2.5452)
Luminance	0.1165 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A63E1E #1E86A6

analogous

#A61E42 #A63E1E #A6821E

triadic

#A63E1E #1EA63E #3E1EA6

tetradic

#A63E1E #42A61E #1E86A6 #821EA6

square

#A63E1E #42A61E #1E86A6 #821EA6

split-complementary

#A63E1E #1EA682 #1E42A6

monochromatic

#3E170B #722B15 #A63E1E #D85229 #E27C5D

Accessibility & contrast

On white

6.31

#A63E1E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.33

#A63E1E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A63E1E

6.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A63E1E	#FFFFFF	#000000	##FFFFFF
##A63E1E	1.00	6.31	3.33	6.31
#FFFFFF	6.31	1.00	21.00	1.00
#000000	3.33	21.00	1.00	21.00
##FFFFFF	6.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C5119

Deuteranopia (green-blind)

#75681A

Tritanopia (blue-blind)

#B72338

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #a63e1e;
/* rgb */ color: rgb(166, 62, 30);
/* oklch */ color: oklch(50.4% 0.144 37.1);

Tailwind

colors: {
  custom: {
    50: '#c8785c',
    500: '#a63e1e',
    950: '#000000',
  },
}

SCSS

$custom: #a63e1e;
$custom-light: #c8785c;
$custom-dark: #000000;

JSON

{
  "hex": "#a63e1e",
  "rgb": {
    "r": 166,
    "g": 62,
    "b": 30
  },
  "hsl": {
    "h": 14.118,
    "s": 69.388,
    "l": 38.431
  },
  "oklch": {
    "l": 0.504,
    "c": 0.14441,
    "h": 37.1
  },
  "luminance": 0.11646
}

Semantic roles & 50–950 ramp

primary

#A63E1E

secondary

#5AACC6

accent

#C3EC3C

background

#FDF7F5

surface

#FAEDE9

border

#D3C8C5

text

#150904

muted

#837B79

Preview Lab

Preview with #A63E1E

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

Preview Lab → · Contrast checker → · Palette generator →