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Colour

#2F4165

  • #2F4165
  • Blue
  • Dark
  • Nearest: Dark slate grey

#2F4165 is a blue with RGB values 47, 65, 101 and HSL 220°, 36%, 29%. 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

#2F4165#2F4165
HEX#2F4165
RGBrgb(47, 65, 101)
RGB (0–1)0.1843, 0.2549, 0.3961
RGB percentages18.4%, 25.5%, 39.6%
HSLhsl(220, 36.5%, 29%)
HSV / HSBhsv(220, 53.5%, 39.6%)
CMYK53.5%, 35.6%, 0%, 60.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,096,933
CSS custom property--colour: #2F4165;

Brightness & contrast

Relative luminance0.05325WCAG 2.x, 0 is black and 1 is white
Perceived brightness65.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.17:1
Contrast with white10.17:1WCAG normal text: AAA
Contrast with black2.06:1WCAG normal text: Fail
Greyscale equivalent#404040
Inverted#D0BE9A

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#334467no red cones; affects about 1% of men; ΔE 1.5 from the original
Deuteranopia#2D3F64no green cones; the most common form, about 1% of men; ΔE 1.1 from the original
Tritanopia#17494Eno blue cones; rare, and affects men and women equally; ΔE 24.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text10.17:1WCAG large text: AAA
Contrast with black, large text2.06:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 25.6Steel blue · ΔE 27.6Dark slateblue · ΔE 28.9Slate grey · ΔE 29Dim grey · ΔE 29.1Light slate grey · ΔE 31.5
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 25.57, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#65532F
Analogous#2F5C65, #382F65
Triadic#652F41, #41652F
Split complementary#65382F, #5C652F
Tetradic#652F5C, #65532F, #2F6538

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#93A6CD
Lighter +30%#708ABD
Lighter +20%#4F6EAB
Lighter +10%#3F5788
Darker −10%#1F2B42
Darker −20%#0F141F
Darker −30%#000000
Darker −40%#000000
More saturated +25%#1D3B77
Less saturated −25%#424752

Channel breakdown

R47
G65
B101
Red47 (18.4%)
Green65 (25.5%)
Blue101 (39.6%)
Hue220°
Saturation (HSL)36.49%
Lightness29.02%
Dominant channelBlue
Hex per channelR 2F · G 41 · B 65

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Every value on this page was computed from “2f4165” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.