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Recognised as Colour

#2F48A3

  • #2F48A3
  • Blue
  • Dark
  • Nearest: Dark slateblue

#2F48A3 is a blue with RGB values 47, 72, 163 and HSL 227°, 55%, 41%. It is a dark colour, so white text on it reaches 8.2:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#2F48A3#2F48A3
HEX#2F48A3
RGBrgb(47, 72, 163)
RGB (0–1)0.1843, 0.2824, 0.6392
RGB percentages18.4%, 28.2%, 63.9%
HSLhsl(227.1, 55.2%, 41.2%)
HSV / HSBhsv(227.1, 71.2%, 63.9%)
CMYK71.2%, 55.8%, 0%, 36.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,098,787
CSS custom property--colour: #2F48A3;

Brightness & contrast

Relative luminance0.07883WCAG 2.x, 0 is black and 1 is white
Perceived brightness82.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.15:1
Contrast with white8.15:1WCAG normal text: AAA
Contrast with black2.58:1WCAG normal text: Fail
Greyscale equivalent#494949
Inverted#D0B75C

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0055A6no red cones; affects about 1% of men; ΔE 12.1 from the original
Deuteranopia#004AA1no green cones; the most common form, about 1% of men; ΔE 6.2 from the original
Tritanopia#005E6Eno blue cones; rare, and affects men and women equally; ΔE 53.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text8.15:1WCAG large text: AAA
Contrast with black, large text2.58:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 11Slate blue · ΔE 18.8Royal blue · ΔE 19.7Midnight blue · ΔE 20.3Rebecca purple · ΔE 21.1Medium purple · ΔE 25.7
Nearest named CSS colourDark slateblue (#483D8B)ΔE 11.02, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#A38A2F
Analogous#2F82A3, #502FA3
Triadic#A32F48, #48A32F
Split complementary#A3502F, #82A32F
Tetradic#A32F82, #A38A2F, #2FA350

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#B4C0EA
Lighter +30%#8D9EDE
Lighter +20%#657DD3
Lighter +10%#3E5BC7
Darker −10%#24377B
Darker −20%#182554
Darker −30%#0D142C
Darker −40%#010205
More saturated +25%#1539BD
Less saturated −25%#495789

Channel breakdown

R47
G72
B163
Red47 (18.4%)
Green72 (28.2%)
Blue163 (63.9%)
Hue227.07°
Saturation (HSL)55.24%
Lightness41.18%
Dominant channelBlue
Hex per channelR 2F · G 48 · B A3

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Every value on this page was computed from “2f48a3” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.