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Recognised as Colour

#3F4146

  • #3F4146
  • Grey
  • Dark
  • Nearest: Dark slate grey

#3F4146 is a grey with RGB values 63, 65, 70 and HSL 223°, 5%, 26%. It is a dark colour, so white text on it reaches 10.2:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#3F4146#3F4146
HEX#3F4146
RGBrgb(63, 65, 70)
RGB (0–1)0.2471, 0.2549, 0.2745
RGB percentages24.7%, 25.5%, 27.5%
HSLhsl(222.9, 5.3%, 26.1%)
HSV / HSBhsv(222.9, 10%, 27.5%)
CMYK10%, 7.1%, 0%, 72.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,145,478
CSS custom property--colour: #3F4146;

Brightness & contrast

Relative luminance0.0528WCAG 2.x, 0 is black and 1 is white
Perceived brightness65 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.21:1
Contrast with white10.21:1WCAG normal text: AAA
Contrast with black2.06:1WCAG normal text: Fail
Greyscale equivalent#414141
Inverted#C0BEB9

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#404146no red cones; affects about 1% of men; ΔE 0.4 from the original
Deuteranopia#3F4146no green cones; the most common form, about 1% of men; ΔE 0 from the original
Tritanopia#3D4243no blue cones; rare, and affects men and women equally; ΔE 3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text10.21:1WCAG large text: AAA
Contrast with black, large text2.06:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 12.6Dim grey · ΔE 17.2Gray · ΔE 26.3Slate grey · ΔE 26.5Black · ΔE 27.7Light slate grey · ΔE 29.6
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 12.63, a distinctly different colour
Hue familygrey
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#46443F
Analogous#3F4546, #413F46
Triadic#463F41, #41463F
Split complementary#46413F, #45463F
Tetradic#463F45, #46443F, #3F4641

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A4A7AD
Lighter +30%#898C95
Lighter +20%#6F737C
Lighter +10%#575A61
Darker −10%#27282B
Darker −20%#0F0F10
Darker −30%#000000
Darker −40%#000000
More saturated +25%#2E3A57
Less saturated −25%#434343

Channel breakdown

R63
G65
B70
Red63 (24.7%)
Green65 (25.5%)
Blue70 (27.5%)
Hue222.86°
Saturation (HSL)5.26%
Lightness26.08%
Dominant channelBlue
Hex per channelR 3F · G 41 · B 46

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Every value on this page was computed from “3f4146” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.