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Colour

#4F51E5

  • #4F51E5
  • Blue
  • Dark
  • Nearest: Medium slateblue

#4F51E5 is a blue with RGB values 79, 81, 229 and HSL 239°, 74%, 60%. It is a dark colour, so white text on it reaches 5.8:1 contrast (AA for normal text). The nearest named colour is Medium slateblue.

Colour values

#4F51E5#4F51E5
HEX#4F51E5
RGBrgb(79, 81, 229)
RGB (0–1)0.3098, 0.3176, 0.898
RGB percentages31%, 31.8%, 89.8%
HSLhsl(239.2, 74.3%, 60.4%)
HSV / HSBhsv(239.2, 65.5%, 89.8%)
CMYK65.5%, 64.6%, 0%, 10.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,198,309
CSS custom property--colour: #4F51E5;

Brightness & contrast

Relative luminance0.13204WCAG 2.x, 0 is black and 1 is white
Perceived brightness108.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.77:1
Contrast with white5.77:1WCAG normal text: AA
Contrast with black3.64:1WCAG normal text: Fail
Greyscale equivalent#5B5B5B
Inverted#B0AE1A

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#006CEAno red cones; affects about 1% of men; ΔE 22.1 from the original
Deuteranopia#005FE2no green cones; the most common form, about 1% of men; ΔE 16 from the original
Tritanopia#007794no blue cones; rare, and affects men and women equally; ΔE 80.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.77:1WCAG large text: AAA
Contrast with black, large text3.64:1WCAG large text: AA

Named colours

Medium slateblue · ΔE 13.8Slate blue · ΔE 19.5Royal blue · ΔE 21.2Blue violet · ΔE 25.6Dark orchid · ΔE 25.8Medium purple · ΔE 28.8
Nearest named CSS colourMedium slateblue (#7B68EE)ΔE 13.79, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#E5E34F
Analogous#4F9CE5, #984FE5
Triadic#E54F51, #51E54F
Split complementary#E5984F, #9CE54F
Tetradic#E54F9C, #E5E34F, #4FE598

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#D4D5F9
Lighter +20%#A8A9F2
Lighter +10%#7B7DEC
Darker −10%#2325DE
Darker −20%#1B1DB3
Darker −30%#141587
Darker −40%#0D0E5B
More saturated +25%#3638FE
Less saturated −25%#686ACC

Channel breakdown

R79
G81
B229
Red79 (31%)
Green81 (31.8%)
Blue229 (89.8%)
Hue239.2°
Saturation (HSL)74.26%
Lightness60.39%
Dominant channelBlue
Hex per channelR 4F · G 51 · B E5

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Every value on this page was computed from “4f51e5” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.