#403636#403636

#403636 is a dark, near-neutral red. Relative luminance 0.040; OKLCH L 34.4% C 0.014 H 17.9°. Best body text is #FFFFFF at 11.67:1 contrast (WCAG AA passes).

Color values

HEX	#403636
RGB	rgb(64, 54, 54)
HSL	hsl(0, 8%, 23%)
HSV	hsv(0, 16%, 25%)
CMYK	cmyk(0%, 15.6%, 15.6%, 74.9%)
CIE-LAB	lab(23.65, 4.42, 1.64)
CIE-LCH	lch(23.65, 4.72, 20.33°)
OKLab	oklab(34.35% 0.0136 0.0044)
OKLCH	oklch(34.35% 0.014 17.9)
XYZ	xyz(4.0993, 3.9948, 4.0444)
Luminance	0.0399 (WCAG relative)
Temperature	neutral
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#403636 #364040

analogous

#40363B #403636 #403B36

triadic

#403636 #364036 #363640

tetradic

#403636 #3B4036 #364040 #3B3640

square

#403636 #3B4036 #364040 #3B3640

split-complementary

#403636 #36403B #363B40

monochromatic

#110E0E #1F1A1A #403636 #615252 #826E6E

Accessibility & contrast

On white

11.67

#403636 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#403636 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403636

11.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403636	#FFFFFF	#000000	##FFFFFF
##403636	1.00	11.67	1.80	11.67
#FFFFFF	11.67	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#383736

Deuteranopia (green-blind)

#3A3936

Tritanopia (blue-blind)

#423536

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #403636;
/* rgb */ color: rgb(64, 54, 54);
/* oklch */ color: oklch(34.4% 0.014 17.9);

Tailwind

colors: {
  custom: {
    50: '#756d6c',
    500: '#403636',
    950: '#000000',
  },
}

SCSS

$custom: #403636;
$custom-light: #756d6c;
$custom-dark: #000000;

JSON

{
  "hex": "#403636",
  "rgb": {
    "r": 64,
    "g": 54,
    "b": 54
  },
  "hsl": {
    "h": 0,
    "s": 8.475,
    "l": 23.137
  },
  "oklch": {
    "l": 0.34352,
    "c": 0.01425,
    "h": 17.9
  },
  "luminance": 0.03995
}

Semantic roles & 50–950 ramp

primary

#403636

secondary

#636F6F

accent

#B1B176

background

#F7F6F6

surface

#EDEBEB

border

#C8C6C6

text

#080707

muted

#7B7A7A

Preview Lab

Preview with #403636

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

Preview Lab → · Contrast checker → · Palette generator →