Colour

#403F39

#403F39
Grey
Dark
Nearest: Dark slate grey

#403F39 is a grey with RGB values 64, 63, 57 and HSL 51°, 6%, 24%. It is a dark colour, so white text on it reaches 10.6:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#403F39#403F39

HEX#403F39

RGBrgb(64, 63, 57)

RGB (0–1)0.251, 0.2471, 0.2235

RGB percentages25.1%, 24.7%, 22.4%

HSLhsl(51.4, 5.8%, 23.7%)

HSV / HSBhsv(51.4, 10.9%, 25.1%)

CMYK0%, 1.6%, 10.9%, 74.9%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer4,210,489

CSS custom property--colour: #403F39;

Brightness & contrast

Relative luminance0.0494WCAG 2.x, 0 is black and 1 is white

Perceived brightness62.6 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 10.56:1

Contrast with white10.56:1WCAG normal text: AAA

Contrast with black1.99:1WCAG normal text: Fail

Greyscale equivalent#3F3F3F

Inverted#BFC0C6

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#403F39no red cones; affects about 1% of men; ΔE 0 from the original

Deuteranopia#413F39no green cones; the most common form, about 1% of men; ΔE 0.5 from the original

Tritanopia#413E3Dno blue cones; rare, and affects men and women equally; ΔE 3.4 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text10.56:1WCAG large text: AAA

Contrast with black, large text1.99:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 14 Dim grey · ΔE 18.3 Black · ΔE 26.9 Gray · ΔE 27.3 Slate grey · ΔE 30 Light slate grey · ΔE 33

Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 14.04, a distinctly different colour

Hue familygrey

CSS keyword usableNo exact keyword

Colour harmonies

base +30°+90°+120°+180°+210°+240°+270°+330°

Complementary#393A40

Analogous#403B39, #3D4039

Triadic#39403F, #3F3940

Split complementary#393D40, #3C3940

Tetradic#39403B, #393A40, #40393D

Tints, shades & saturation

+40%+30%+20%+10%base -10%-20%-30%-40%

Lighter +40%#A8A69D

Lighter +30%#908E82

Lighter +20%#767469

Lighter +10%#5B5A51

Darker −10%#252421

Darker −20%#0A0A09

Darker −30%#000000

Darker −40%#000000

More saturated +25%#4F4A2A

Less saturated −25%#3C3C3C

Channel breakdown

R64

G63

B57

Red64 (25.1%)

Green63 (24.7%)

Blue57 (22.4%)

Hue51.43°

Saturation (HSL)5.79%

Lightness23.73%

Dominant channelRed

Hex per channelR 40 · G 3F · B 39

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

#403F39

Colour values

Brightness & contrast

Colour vision & accessibility

Named colours

Colour harmonies

Tints, shades & saturation

Channel breakdown

Keep nerding

Harmonies

Lighter and darker

Similar named colours

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