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Colour

#3F4046

  • #3F4046
  • Grey
  • Dark
  • Nearest: Dark slate grey

#3F4046 is a grey with RGB values 63, 64, 70 and HSL 231°, 5%, 26%. It is a dark colour, so white text on it reaches 10.3:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#3F4046#3F4046
HEX#3F4046
RGBrgb(63, 64, 70)
RGB (0–1)0.2471, 0.251, 0.2745
RGB percentages24.7%, 25.1%, 27.5%
HSLhsl(231.4, 5.3%, 26.1%)
HSV / HSBhsv(231.4, 10%, 27.5%)
CMYK10%, 8.6%, 0%, 72.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,145,222
CSS custom property--colour: #3F4046;

Brightness & contrast

Relative luminance0.05166WCAG 2.x, 0 is black and 1 is white
Perceived brightness64.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.33:1
Contrast with white10.33:1WCAG normal text: AAA
Contrast with black2.03:1WCAG normal text: Fail
Greyscale equivalent#404040
Inverted#C0BFB9

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#3F4146no red cones; affects about 1% of men; ΔE 0.9 from the original
Deuteranopia#3E4046no green cones; the most common form, about 1% of men; ΔE 0.4 from the original
Tritanopia#3E4142no 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 text10.33:1WCAG large text: AAA
Contrast with black, large text2.03:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 13.3Dim grey · ΔE 17.7Gray · ΔE 26.7Slate grey · ΔE 26.7Black · ΔE 27.5Light slate grey · ΔE 29.8
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 13.34, a distinctly different colour
Hue familygrey
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#46453F
Analogous#3F4446, #423F46
Triadic#463F40, #40463F
Split complementary#46423F, #44463F
Tetradic#463F44, #46453F, #3F4642

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A4A5AD
Lighter +30%#898B95
Lighter +20%#6F717C
Lighter +10%#575961
Darker −10%#27272B
Darker −20%#0F0F10
Darker −30%#000000
Darker −40%#000000
More saturated +25%#2E3457
Less saturated −25%#434343

Channel breakdown

R63
G64
B70
Red63 (24.7%)
Green64 (25.1%)
Blue70 (27.5%)
Hue231.43°
Saturation (HSL)5.26%
Lightness26.08%
Dominant channelBlue
Hex per channelR 3F · G 40 · B 46

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Every value on this page was computed from “3f4046” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.