#A6381E#A6381E

#A6381E is a mid, vivid red. Relative luminance 0.110; OKLCH L 49.6% C 0.150 H 34.5°. Best body text is #FFFFFF at 6.55:1 contrast (WCAG AA passes).

Color values

HEX	#A6381E
RGB	rgb(166, 56, 30)
HSL	hsl(11, 69%, 38%)
HSV	hsv(11, 82%, 65%)
CMYK	cmyk(0%, 66.3%, 81.9%, 34.9%)
CIE-LAB	lab(39.63, 43.98, 39.52)
CIE-LCH	lch(39.63, 59.12, 41.94°)
OKLab	oklab(49.63% 0.1236 0.0849)
OKLCH	oklch(49.63% 0.15 34.5)
XYZ	xyz(17.3764, 11.0316, 2.4424)
Luminance	0.1103 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A6381E #1E8CA6

analogous

#A61E48 #A6381E #A67C1E

triadic

#A6381E #1EA638 #381EA6

tetradic

#A6381E #48A61E #1E8CA6 #7C1EA6

square

#A6381E #48A61E #1E8CA6 #7C1EA6

split-complementary

#A6381E #1EA67C #1E48A6

monochromatic

#3E150B #722715 #A6381E #D84A29 #E2765D

Accessibility & contrast

On white

6.55

#A6381E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.21

#A6381E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A6381E

6.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A6381E	#FFFFFF	#000000	##FFFFFF
##A6381E	1.00	6.55	3.21	6.55
#FFFFFF	6.55	1.00	21.00	1.00
#000000	3.21	21.00	1.00	21.00
##FFFFFF	6.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#584E1A

Deuteranopia (green-blind)

#736619

Tritanopia (blue-blind)

#B71733

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #a6381e;
/* rgb */ color: rgb(166, 56, 30);
/* oklch */ color: oklch(49.6% 0.150 34.5);

Tailwind

colors: {
  custom: {
    50: '#c9745c',
    500: '#a6381e',
    950: '#000000',
  },
}

SCSS

$custom: #a6381e;
$custom-light: #c9745c;
$custom-dark: #000000;

JSON

{
  "hex": "#a6381e",
  "rgb": {
    "r": 166,
    "g": 56,
    "b": 30
  },
  "hsl": {
    "h": 11.471,
    "s": 69.388,
    "l": 38.431
  },
  "oklch": {
    "l": 0.49633,
    "c": 0.14997,
    "h": 34.5
  },
  "luminance": 0.11029
}

Semantic roles & 50–950 ramp

primary

#A6381E

secondary

#5AB1C6

accent

#CAEC3C

background

#FDF7F5

surface

#FAEDE9

border

#D3C8C5

text

#150904

muted

#837B79

Preview Lab

Preview with #A6381E

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

Preview Lab → · Contrast checker → · Palette generator →