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Recognised as Colour

#2F3542

  • #2F3542
  • Blue
  • Dark
  • Nearest: Dark slate grey

#2F3542 is a blue with RGB values 47, 53, 66 and HSL 221°, 17%, 22%. It is a dark colour, so white text on it reaches 12.3:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#2F3542#2F3542
HEX#2F3542
RGBrgb(47, 53, 66)
RGB (0–1)0.1843, 0.2078, 0.2588
RGB percentages18.4%, 20.8%, 25.9%
HSLhsl(221.1, 16.8%, 22.2%)
HSV / HSBhsv(221.1, 28.8%, 25.9%)
CMYK28.8%, 19.7%, 0%, 74.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,093,826
CSS custom property--colour: #2F3542;

Brightness & contrast

Relative luminance0.03544WCAG 2.x, 0 is black and 1 is white
Perceived brightness53 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 12.29:1
Contrast with white12.29:1WCAG normal text: AAA
Contrast with black1.71:1WCAG normal text: Fail
Greyscale equivalent#353535
Inverted#D0CABD

Colour vision & accessibility

Protanopia#313643no red cones; affects about 1% of men; ΔE 0.7 from the original
Deuteranopia#2F3442no green cones; the most common form, about 1% of men; ΔE 0.9 from the original
Tritanopia#2A3839no blue cones; rare, and affects men and women equally; ΔE 9.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text12.29:1WCAG large text: AAA
Contrast with black, large text1.71:1WCAG large text: Fail

Named colours

Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 16.49, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#423C2F
Analogous#2F3F42, #332F42
Triadic#422F35, #35422F
Split complementary#42332F, #3E422F
Tetradic#422F3E, #423C2F, #2F4233

Tints, shades & saturation

Lighter +40%#8E99AF
Lighter +30%#707D9A
Lighter +20%#59657E
Lighter +10%#444D60
Darker −10%#1A1D24
Darker −20%#050506
Darker −30%#000000
Darker −40%#000000
More saturated +25%#213050
Less saturated −25%#393939

Channel breakdown

R47
G53
B66
Red47 (18.4%)
Green53 (20.8%)
Blue66 (25.9%)
Hue221.05°
Saturation (HSL)16.81%
Lightness22.16%
Dominant channelBlue
Hex per channelR 2F · G 35 · B 42

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Every value on this page was computed from “2f3542” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.