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Recognised as Colour

#515FD0

  • #515FD0
  • Blue
  • Dark
  • Nearest: Royal blue

#515FD0 is a blue with RGB values 81, 95, 208 and HSL 233°, 57%, 57%. It is a dark colour, so white text on it reaches 5.4:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#515FD0#515FD0
HEX#515FD0
RGBrgb(81, 95, 208)
RGB (0–1)0.3176, 0.3725, 0.8157
RGB percentages31.8%, 37.3%, 81.6%
HSLhsl(233.4, 57.5%, 56.7%)
HSV / HSBhsv(233.4, 61.1%, 81.6%)
CMYK61.1%, 54.3%, 0%, 18.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,332,944
CSS custom property--colour: #515FD0;

Brightness & contrast

Relative luminance0.14488WCAG 2.x, 0 is black and 1 is white
Perceived brightness110.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.39:1
Contrast with white5.39:1WCAG normal text: AA
Contrast with black3.9:1WCAG normal text: Fail
Greyscale equivalent#646464
Inverted#AEA02F

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0C70D4no red cones; affects about 1% of men; ΔE 17 from the original
Deuteranopia#0065CEno green cones; the most common form, about 1% of men; ΔE 12.4 from the original
Tritanopia#007A8Eno blue cones; rare, and affects men and women equally; ΔE 64.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text5.39:1WCAG large text: AAA
Contrast with black, large text3.9:1WCAG large text: AA

Named colours

Royal blue · ΔE 6.4Slate blue · ΔE 7.4Medium slateblue · ΔE 14.9Medium purple · ΔE 16.2Rebecca purple · ΔE 22.5Dark slateblue · ΔE 23.2
Nearest named CSS colourRoyal blue (#4169E1)ΔE 6.44, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#D0C251
Analogous#519ED0, #8351D0
Triadic#D0515F, #5FD051
Split complementary#D08351, #9ED051
Tetradic#D0519E, #D0C251, #51D083

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#F2F3FB
Lighter +30%#C9CEF1
Lighter +20%#A1A9E6
Lighter +10%#7984DB
Darker −10%#3342BB
Darker −20%#283493
Darker −30%#1D266B
Darker −40%#121743
More saturated +25%#3549EC
Less saturated −25%#6D75B4

Channel breakdown

R81
G95
B208
Red81 (31.8%)
Green95 (37.3%)
Blue208 (81.6%)
Hue233.39°
Saturation (HSL)57.47%
Lightness56.67%
Dominant channelBlue
Hex per channelR 51 · G 5F · B D0

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Every value on this page was computed from “515fd0” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.