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Recognised as Colour

#2F4FAC

  • #2F4FAC
  • Blue
  • Dark
  • Nearest: Dark slateblue

#2F4FAC is a blue with RGB values 47, 79, 172 and HSL 225°, 57%, 43%. It is a dark colour, so white text on it reaches 7.4:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#2F4FAC#2F4FAC
HEX#2F4FAC
RGBrgb(47, 79, 172)
RGB (0–1)0.1843, 0.3098, 0.6745
RGB percentages18.4%, 31%, 67.5%
HSLhsl(224.6, 57.1%, 42.9%)
HSV / HSBhsv(224.6, 72.7%, 67.5%)
CMYK72.7%, 54.1%, 0%, 32.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,100,588
CSS custom property--colour: #2F4FAC;

Brightness & contrast

Relative luminance0.09175WCAG 2.x, 0 is black and 1 is white
Perceived brightness87.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.41:1
Contrast with white7.41:1WCAG normal text: AAA
Contrast with black2.83:1WCAG normal text: Fail
Greyscale equivalent#4F4F4F
Inverted#D0B053

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#075BAFno red cones; affects about 1% of men; ΔE 10.8 from the original
Deuteranopia#0050AAno green cones; the most common form, about 1% of men; ΔE 5.3 from the original
Tritanopia#006576no 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 text7.41:1WCAG large text: AAA
Contrast with black, large text2.83:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 13.4Royal blue · ΔE 17.4Slate blue · ΔE 18Rebecca purple · ΔE 22.8Midnight blue · ΔE 23.3Medium purple · ΔE 24.5
Nearest named CSS colourDark slateblue (#483D8B)ΔE 13.38, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#AC8C2F
Analogous#2F8EAC, #4D2FAC
Triadic#AC2F4F, #4FAC2F
Split complementary#AC4D2F, #8EAC2F
Tetradic#AC2F8E, #AC8C2F, #2FAC4D

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#BBC7EC
Lighter +30%#93A7E1
Lighter +20%#6B86D6
Lighter +10%#4366CB
Darker −10%#243D84
Darker −20%#192A5C
Darker −30%#0E1834
Darker −40%#03050C
More saturated +25%#1442C7
Less saturated −25%#4A5C91

Channel breakdown

R47
G79
B172
Red47 (18.4%)
Green79 (31%)
Blue172 (67.5%)
Hue224.64°
Saturation (HSL)57.08%
Lightness42.94%
Dominant channelBlue
Hex per channelR 2F · G 4F · B AC

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Every value on this page was computed from “2f4fac” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.