#40403A#40403A

#40403A is a dark, near-neutral grey. Relative luminance 0.051; OKLCH L 36.9% C 0.010 H 106.9°. Best body text is #FFFFFF at 10.44:1 contrast (WCAG AA passes).

Color values

HEX	#40403A
RGB	rgb(64, 64, 58)
HSL	hsl(60, 5%, 24%)
HSV	hsv(60, 9%, 25%)
CMYK	cmyk(0%, 0%, 9.4%, 74.9%)
CIE-LAB	lab(26.91, -1.29, 3.67)
CIE-LCH	lch(26.91, 3.89, 109.39°)
OKLab	oklab(36.95% -0.0029 0.0096)
OKLCH	oklch(36.95% 0.01 106.9)
XYZ	xyz(4.7114, 5.0623, 4.7311)
Luminance	0.0506 (WCAG relative)
Temperature	neutral
Family	grey

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40403A #3A3A40

analogous

#403D3A #40403A #3D403A

triadic

#40403A #3A4040 #403A40

tetradic

#40403A #3A403D #3A3A40 #403A3D

square

#40403A #3A403D #3A3A40 #403A3D

split-complementary

#40403A #3A3D40 #3D3A40

monochromatic

#10100F #20201D #40403A #606057 #808074

Accessibility & contrast

On white

10.44

#40403A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.01

#40403A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40403A

10.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40403A	#FFFFFF	#000000	##FFFFFF
##40403A	1.00	10.44	2.01	10.44
#FFFFFF	10.44	1.00	21.00	1.00
#000000	2.01	21.00	1.00	21.00
##FFFFFF	10.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#413F3A

Deuteranopia (green-blind)

#41403A

Tritanopia (blue-blind)

#413F3E

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #40403a;
/* rgb */ color: rgb(64, 64, 58);
/* oklch */ color: oklch(36.9% 0.010 106.9);

Tailwind

colors: {
  custom: {
    50: '#747470',
    500: '#40403a',
    950: '#000000',
  },
}

SCSS

$custom: #40403a;
$custom-light: #747470;
$custom-dark: #000000;

JSON

{
  "hex": "#40403a",
  "rgb": {
    "r": 64,
    "g": 64,
    "b": 58
  },
  "hsl": {
    "h": 60,
    "s": 4.918,
    "l": 23.922
  },
  "oklch": {
    "l": 0.36946,
    "c": 0.01002,
    "h": 106.9
  },
  "luminance": 0.05062
}

Semantic roles & 50–950 ramp

primary

#40403A

secondary

#67676F

accent

#7AAE7A

background

#F7F7F6

surface

#EDEDEC

border

#C8C8C7

text

#080807

muted

#7B7B7A

Preview Lab

Preview with #40403A

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

Preview Lab → · Contrast checker → · Palette generator →