#A63F30#A63F30

#A63F30 is a mid, vivid red. Relative luminance 0.119; OKLCH L 50.7% C 0.139 H 30.8°. Best body text is #FFFFFF at 6.22:1 contrast (WCAG AA passes).

Color values

HEX	#A63F30
RGB	rgb(166, 63, 48)
HSL	hsl(8, 55%, 42%)
HSV	hsv(8, 71%, 65%)
CMYK	cmyk(0%, 62%, 71.1%, 34.9%)
CIE-LAB	lab(41.02, 41.56, 31.07)
CIE-LCH	lch(41.02, 51.89, 36.78°)
OKLab	oklab(50.74% 0.1196 0.0712)
OKLCH	oklch(50.74% 0.139 30.8)
XYZ	xyz(18.0387, 11.8779, 4.1385)
Luminance	0.1187 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A63F30 #3097A6

analogous

#A6305C #A63F30 #A67A30

triadic

#A63F30 #30A63F #3F30A6

tetradic

#A63F30 #5CA630 #3097A6 #7A30A6

square

#A63F30 #5CA630 #3097A6 #7A30A6

split-complementary

#A63F30 #30A67A #305CA6

monochromatic

#471B15 #772D22 #A63F30 #CA5949 #D88578

Accessibility & contrast

On white

6.22

#A63F30 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.38

#A63F30 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A63F30

6.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A63F30	#FFFFFF	#000000	##FFFFFF
##A63F30	1.00	6.22	3.38	6.22
#FFFFFF	6.22	1.00	21.00	1.00
#000000	3.38	21.00	1.00	21.00
##FFFFFF	6.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B532E

Deuteranopia (green-blind)

#74692D

Tritanopia (blue-blind)

#B6273C

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #a63f30;
/* rgb */ color: rgb(166, 63, 48);
/* oklch */ color: oklch(50.7% 0.139 30.8);

Tailwind

colors: {
  custom: {
    50: '#c77869',
    500: '#a63f30',
    950: '#000000',
  },
}

SCSS

$custom: #a63f30;
$custom-light: #c77869;
$custom-dark: #000000;

JSON

{
  "hex": "#a63f30",
  "rgb": {
    "r": 166,
    "g": 63,
    "b": 48
  },
  "hsl": {
    "h": 7.627,
    "s": 55.14,
    "l": 41.961
  },
  "oklch": {
    "l": 0.5074,
    "c": 0.13922,
    "h": 30.8
  },
  "luminance": 0.11875
}

Semantic roles & 50–950 ramp

primary

#A63F30

secondary

#71B6C0

accent

#CCDE49

background

#FDF7F6

surface

#FAEEEB

border

#D3C9C6

text

#140906

muted

#837B7A

Preview Lab

Preview with #A63F30

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

Preview Lab → · Contrast checker → · Palette generator →