#A63B26#A63B26

#A63B26 is a mid, vivid red. Relative luminance 0.114; OKLCH L 50.1% C 0.145 H 33.1°. Best body text is #FFFFFF at 6.41:1 contrast (WCAG AA passes).

Color values

HEX	#A63B26
RGB	rgb(166, 59, 38)
HSL	hsl(10, 63%, 40%)
HSV	hsv(10, 77%, 65%)
CMYK	cmyk(0%, 64.5%, 77.1%, 34.9%)
CIE-LAB	lab(40.21, 42.93, 35.84)
CIE-LCH	lch(40.21, 55.93, 39.85°)
OKLab	oklab(50.09% 0.1219 0.0793)
OKLCH	oklch(50.09% 0.145 33.1)
XYZ	xyz(17.6416, 11.3774, 3.1005)
Luminance	0.1138 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A63B26 #2691A6

analogous

#A62651 #A63B26 #A67B26

triadic

#A63B26 #26A63B #3B26A6

tetradic

#A63B26 #51A626 #2691A6 #7B26A6

square

#A63B26 #51A626 #2691A6 #7B26A6

split-complementary

#A63B26 #26A67B #2651A6

monochromatic

#42180F #74291B #A63B26 #D15138 #DD7D6A

Accessibility & contrast

On white

6.41

#A63B26 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.28

#A63B26 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A63B26

6.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A63B26	#FFFFFF	#000000	##FFFFFF
##A63B26	1.00	6.41	3.28	6.41
#FFFFFF	6.41	1.00	21.00	1.00
#000000	3.28	21.00	1.00	21.00
##FFFFFF	6.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#595023

Deuteranopia (green-blind)

#746822

Tritanopia (blue-blind)

#B71F37

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #a63b26;
/* rgb */ color: rgb(166, 59, 38);
/* oklch */ color: oklch(50.1% 0.145 33.1);

Tailwind

colors: {
  custom: {
    50: '#c87662',
    500: '#a63b26',
    950: '#000000',
  },
}

SCSS

$custom: #a63b26;
$custom-light: #c87662;
$custom-dark: #000000;

JSON

{
  "hex": "#a63b26",
  "rgb": {
    "r": 166,
    "g": 59,
    "b": 38
  },
  "hsl": {
    "h": 9.844,
    "s": 62.745,
    "l": 40
  },
  "oklch": {
    "l": 0.5009,
    "c": 0.14544,
    "h": 33.1
  },
  "luminance": 0.11375
}

Semantic roles & 50–950 ramp

primary

#A63B26

secondary

#65B4C3

accent

#CBE642

background

#FDF7F5

surface

#FAEDEA

border

#D3C8C6

text

#150905

muted

#837B79

Preview Lab

Preview with #A63B26

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

Preview Lab → · Contrast checker → · Palette generator →