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Recognised as Colour

#505AFF

  • #505AFF
  • Blue
  • Dark
  • Nearest: Medium slateblue

#505AFF is a blue with RGB values 80, 90, 255 and HSL 237°, 100%, 66%. It is a dark colour, so white text on it reaches 4.9:1 contrast (AA for normal text). The nearest named colour is Medium slateblue.

Colour values

#505AFF#505AFF
HEX#505AFF
RGBrgb(80, 90, 255)
RGB (0–1)0.3137, 0.3529, 1
RGB percentages31.4%, 35.3%, 100%
HSLhsl(236.6, 100%, 65.7%)
HSV / HSBhsv(236.6, 68.6%, 100%)
CMYK68.6%, 64.7%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,266,175
CSS custom property--colour: #505AFF;

Brightness & contrast

Relative luminance0.16238WCAG 2.x, 0 is black and 1 is white
Perceived brightness118.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 4.94:1
Contrast with white4.94:1WCAG normal text: AA
Contrast with black4.25:1WCAG normal text: Fail
Greyscale equivalent#646464
Inverted#AFA500

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0078FFno red cones; affects about 1% of men; ΔE 25.9 from the original
Deuteranopia#0068FCno green cones; the most common form, about 1% of men; ΔE 15.2 from the original
Tritanopia#0086A5no blue cones; rare, and affects men and women equally; ΔE 88.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.94:1WCAG large text: AAA
Contrast with black, large text4.25:1WCAG large text: AA

Named colours

Medium slateblue · ΔE 19.4Blue violet · ΔE 24.2Royal blue · ΔE 27.7Slate blue · ΔE 27.8Dark orchid · ΔE 29.1Medium blue · ΔE 30.9
Nearest named CSS colourMedium slateblue (#7B68EE)ΔE 19.35, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FFF550
Analogous#50B2FF, #9D50FF
Triadic#FF505A, #5AFF50
Split complementary#FF9D50, #B2FF50
Tetradic#FF50B2, #FFF550, #50FF9D

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#E9EAFF
Lighter +20%#B6BAFF
Lighter +10%#838AFF
Darker −10%#1D2AFF
Darker −20%#000DE9
Darker −30%#000AB6
Darker −40%#000783
More saturated +25%#505AFF
Less saturated −25%#666DE9

Channel breakdown

R80
G90
B255
Red80 (31.4%)
Green90 (35.3%)
Blue255 (100%)
Hue236.57°
Saturation (HSL)100%
Lightness65.69%
Dominant channelBlue
Hex per channelR 50 · G 5A · B FF

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Every value on this page was computed from “505aff” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.