#403B40#403B40

#403B40 is a dark, near-neutral grey. Relative luminance 0.046; OKLCH L 35.9% C 0.011 H 325.8°. Best body text is #FFFFFF at 10.95:1 contrast (WCAG AA passes).

Color values

HEX	#403B40
RGB	rgb(64, 59, 64)
HSL	hsl(300, 4%, 24%)
HSV	hsv(300, 8%, 25%)
CMYK	cmyk(0%, 7.8%, 0%, 74.9%)
CIE-LAB	lab(25.53, 3.26, -2.30)
CIE-LCH	lch(25.53, 3.99, 324.82°)
OKLab	oklab(35.92% 0.009 -0.0061)
OKLCH	oklch(35.92% 0.011 325.8)
XYZ	xyz(4.6036, 4.5881, 5.4926)
Luminance	0.0459 (WCAG relative)
Temperature	neutral
Family	grey

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#403B40 #3B403B

analogous

#3E3B40 #403B40 #403B3E

triadic

#403B40 #40403B #3B4040

tetradic

#403B40 #403E3B #3B403B #3B3E40

square

#403B40 #403E3B #3B403B #3B3E40

split-complementary

#403B40 #3E403B #3B403E

monochromatic

#100F10 #201E20 #403B40 #605860 #807680

Accessibility & contrast

On white

10.95

#403B40 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.92

#403B40 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403B40

10.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403B40	#FFFFFF	#000000	##FFFFFF
##403B40	1.00	10.95	1.92	10.95
#FFFFFF	10.95	1.00	21.00	1.00
#000000	1.92	21.00	1.00	21.00
##FFFFFF	10.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B3C40

Deuteranopia (green-blind)

#3C3D40

Tritanopia (blue-blind)

#403B3D

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #403b40;
/* rgb */ color: rgb(64, 59, 64);
/* oklch */ color: oklch(35.9% 0.011 325.8);

Tailwind

colors: {
  custom: {
    50: '#747074',
    500: '#403b40',
    950: '#000000',
  },
}

SCSS

$custom: #403b40;
$custom-light: #747074;
$custom-dark: #000000;

JSON

{
  "hex": "#403b40",
  "rgb": {
    "r": 64,
    "g": 59,
    "b": 64
  },
  "hsl": {
    "h": 300,
    "s": 4.065,
    "l": 24.118
  },
  "oklch": {
    "l": 0.35923,
    "c": 0.01084,
    "h": 325.8
  },
  "luminance": 0.04588
}

Semantic roles & 50–950 ramp

primary

#403B40

secondary

#686E68

accent

#AD7B7B

background

#F7F6F7

surface

#EDECED

border

#C8C7C8

text

#080708

muted

#7B7A7B

Preview Lab

Preview with #403B40

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

Preview Lab → · Contrast checker → · Palette generator →