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Recognised as Colour

#2F4FCC

  • #2F4FCC
  • Blue
  • Dark
  • Nearest: Royal blue

#2F4FCC is a blue with RGB values 47, 79, 204 and HSL 228°, 63%, 49%. It is a dark colour, so white text on it reaches 6.7:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#2F4FCC#2F4FCC
HEX#2F4FCC
RGBrgb(47, 79, 204)
RGB (0–1)0.1843, 0.3098, 0.8
RGB percentages18.4%, 31%, 80%
HSLhsl(227.8, 62.5%, 49.2%)
HSV / HSBhsv(227.8, 77%, 80%)
CMYK77%, 61.3%, 0%, 20%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,100,620
CSS custom property--colour: #2F4FCC;

Brightness & contrast

Relative luminance0.10556WCAG 2.x, 0 is black and 1 is white
Perceived brightness95.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.75:1
Contrast with white6.75:1WCAG normal text: AA
Contrast with black3.11:1WCAG normal text: Fail
Greyscale equivalent#515151
Inverted#D0B033

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0063D0no red cones; affects about 1% of men; ΔE 15.9 from the original
Deuteranopia#0054CAno green cones; the most common form, about 1% of men; ΔE 6.9 from the original
Tritanopia#006F86no blue cones; rare, and affects men and women equally; ΔE 70 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.75:1WCAG large text: AAA
Contrast with black, large text3.11:1WCAG large text: AA

Named colours

Royal blue · ΔE 11.6Slate blue · ΔE 12.4Medium slateblue · ΔE 15.8Rebecca purple · ΔE 23.7Medium purple · ΔE 24.4Dark slateblue · ΔE 28
Nearest named CSS colourRoyal blue (#4169E1)ΔE 11.62, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#CCAC2F
Analogous#2F9DCC, #5E2FCC
Triadic#CC2F4F, #4FCC2F
Split complementary#CC5E2F, #9DCC2F
Tetradic#CC2F9D, #CCAC2F, #2FCC5E

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D2D9F5
Lighter +30%#A9B6EB
Lighter +20%#7F93E2
Lighter +10%#5670D8
Darker −10%#253FA3
Darker −20%#1C2F79
Darker −30%#121F50
Darker −40%#090F26
More saturated +25%#103CEB
Less saturated −25%#4E62AD

Channel breakdown

R47
G79
B204
Red47 (18.4%)
Green79 (31%)
Blue204 (80%)
Hue227.77°
Saturation (HSL)62.55%
Lightness49.22%
Dominant channelBlue
Hex per channelR 2F · G 4F · B CC

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Every value on this page was computed from “2f4fcc” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.