#403840#403840

#403840 is a dark, near-neutral grey. Relative luminance 0.043; OKLCH L 35.2% C 0.017 H 325.9°. Best body text is #FFFFFF at 11.30:1 contrast (WCAG AA passes).

Color values

HEX	#403840
RGB	rgb(64, 56, 64)
HSL	hsl(300, 7%, 24%)
HSV	hsv(300, 13%, 25%)
CMYK	cmyk(0%, 12.5%, 0%, 74.9%)
CIE-LAB	lab(24.60, 5.25, -3.67)
CIE-LCH	lch(24.60, 6.40, 325.04°)
OKLab	oklab(35.2% 0.0144 -0.0098)
OKLCH	oklch(35.2% 0.017 325.9)
XYZ	xyz(4.4538, 4.2886, 5.4426)
Luminance	0.0429 (WCAG relative)
Temperature	neutral
Family	grey

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#403840 #384038

analogous

#3C3840 #403840 #40383C

triadic

#403840 #404038 #384040

tetradic

#403840 #403C38 #384038 #383C40

square

#403840 #403C38 #384038 #383C40

split-complementary

#403840 #3C4038 #38403C

monochromatic

#100E10 #1F1B1F #403840 #615561 #817181

Accessibility & contrast

On white

11.30

#403840 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#403840 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403840

11.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403840	#FFFFFF	#000000	##FFFFFF
##403840	1.00	11.30	1.86	11.30
#FFFFFF	11.30	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#383A40

Deuteranopia (green-blind)

#393B40

Tritanopia (blue-blind)

#41393B

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #403840;
/* rgb */ color: rgb(64, 56, 64);
/* oklch */ color: oklch(35.2% 0.017 325.9);

Tailwind

colors: {
  custom: {
    50: '#746e74',
    500: '#403840',
    950: '#000000',
  },
}

SCSS

$custom: #403840;
$custom-light: #746e74;
$custom-dark: #000000;

JSON

{
  "hex": "#403840",
  "rgb": {
    "r": 64,
    "g": 56,
    "b": 64
  },
  "hsl": {
    "h": 300,
    "s": 6.667,
    "l": 23.529
  },
  "oklch": {
    "l": 0.35203,
    "c": 0.01743,
    "h": 325.9
  },
  "luminance": 0.04289
}

Semantic roles & 50–950 ramp

primary

#403840

secondary

#656F65

accent

#B07878

background

#F7F6F7

surface

#EDEBED

border

#C8C6C8

text

#080708

muted

#7B7A7B

Preview Lab

Preview with #403840

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

Preview Lab → · Contrast checker → · Palette generator →