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Recognised as Colour

#2F3C55

  • #2F3C55
  • Blue
  • Dark
  • Nearest: Dark slate grey

#2F3C55 is a blue with RGB values 47, 60, 85 and HSL 219°, 29%, 26%. It is a dark colour, so white text on it reaches 11.1:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#2F3C55#2F3C55
HEX#2F3C55
RGBrgb(47, 60, 85)
RGB (0–1)0.1843, 0.2353, 0.3333
RGB percentages18.4%, 23.5%, 33.3%
HSLhsl(219.5, 28.8%, 25.9%)
HSV / HSBhsv(219.5, 44.7%, 33.3%)
CMYK44.7%, 29.4%, 0%, 66.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,095,637
CSS custom property--colour: #2F3C55;

Brightness & contrast

Relative luminance0.04492WCAG 2.x, 0 is black and 1 is white
Perceived brightness60 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.06:1
Contrast with white11.06:1WCAG normal text: AAA
Contrast with black1.9:1WCAG normal text: Fail
Greyscale equivalent#3B3B3B
Inverted#D0C3AA

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#333E56no red cones; affects about 1% of men; ΔE 1.4 from the original
Deuteranopia#2F3A54no green cones; the most common form, about 1% of men; ΔE 1.3 from the original
Tritanopia#224145no blue cones; rare, and affects men and women equally; ΔE 16.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text11.06:1WCAG large text: AAA
Contrast with black, large text1.9:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 20Dim grey · ΔE 25.6Slate grey · ΔE 28.6Black · ΔE 30.4Light slate grey · ΔE 31.5Steel blue · ΔE 31.9
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 19.97, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#55482F
Analogous#2F4F55, #352F55
Triadic#552F3C, #3C552F
Split complementary#55352F, #4F552F
Tetradic#552F4F, #55482F, #2F5535

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#8FA0C1
Lighter +30%#6E84AF
Lighter +20%#536A97
Lighter +10%#415376
Darker −10%#1D2534
Darker −20%#0B0E13
Darker −30%#000000
Darker −40%#000000
More saturated +25%#1E3765
Less saturated −25%#3F4144

Channel breakdown

R47
G60
B85
Red47 (18.4%)
Green60 (23.5%)
Blue85 (33.3%)
Hue219.47°
Saturation (HSL)28.79%
Lightness25.88%
Dominant channelBlue
Hex per channelR 2F · G 3C · B 55

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Every value on this page was computed from “2f3c55” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.