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Colour

#505FD8

  • #505FD8
  • Blue
  • Dark
  • Nearest: Royal blue

#505FD8 is a blue with RGB values 80, 95, 216 and HSL 233°, 64%, 58%. It is a dark colour, so white text on it reaches 5.3:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#505FD8#505FD8
HEX#505FD8
RGBrgb(80, 95, 216)
RGB (0–1)0.3137, 0.3725, 0.8471
RGB percentages31.4%, 37.3%, 84.7%
HSLhsl(233.4, 63.6%, 58%)
HSV / HSBhsv(233.4, 63%, 84.7%)
CMYK63%, 56%, 0%, 15.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,267,416
CSS custom property--colour: #505FD8;

Brightness & contrast

Relative luminance0.14848WCAG 2.x, 0 is black and 1 is white
Perceived brightness111.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.29:1
Contrast with white5.29:1WCAG normal text: AA
Contrast with black3.97:1WCAG normal text: Fail
Greyscale equivalent#656565
Inverted#AFA027

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0072DCno red cones; affects about 1% of men; ΔE 18.1 from the original
Deuteranopia#0066D6no green cones; the most common form, about 1% of men; ΔE 12.4 from the original
Tritanopia#007C92no blue cones; rare, and affects men and women equally; ΔE 68.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.29:1WCAG large text: AAA
Contrast with black, large text3.97:1WCAG large text: AA

Named colours

Royal blue · ΔE 6Slate blue · ΔE 7.7Medium slateblue · ΔE 11.7Medium purple · ΔE 17.7Rebecca purple · ΔE 23.8Dodgerblue · ΔE 25.8
Nearest named CSS colourRoyal blue (#4169E1)ΔE 5.99, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#D8C950
Analogous#50A3D8, #8550D8
Triadic#D8505F, #5FD850
Split complementary#D88550, #A3D850
Tetradic#D850A3, #D8C950, #50D885

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#F7F8FD
Lighter +30%#CDD1F4
Lighter +20%#A3ABEB
Lighter +10%#7A85E1
Darker −10%#2D3EC8
Darker −20%#23319F
Darker −30%#1A2475
Darker −40%#11174B
More saturated +25%#354AF3
Less saturated −25%#6B74BD

Channel breakdown

R80
G95
B216
Red80 (31.4%)
Green95 (37.3%)
Blue216 (84.7%)
Hue233.38°
Saturation (HSL)63.55%
Lightness58.04%
Dominant channelBlue
Hex per channelR 50 · G 5F · B D8

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Every value on this page was computed from “505fd8” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.