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Colour

#518CFF

  • #518CFF
  • Blue
  • Dark
  • Nearest: Dodgerblue

#518CFF is a blue with RGB values 81, 140, 255 and HSL 220°, 100%, 66%. It is a dark colour, so black text on it reaches 6.5:1 contrast (AA for normal text). The nearest named colour is Dodgerblue.

Colour values

#518CFF#518CFF
HEX#518CFF
RGBrgb(81, 140, 255)
RGB (0–1)0.3176, 0.549, 1
RGB percentages31.8%, 54.9%, 100%
HSLhsl(219.7, 100%, 65.9%)
HSV / HSBhsv(219.7, 68.2%, 100%)
CMYK68.2%, 45.1%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,344,511
CSS custom property--colour: #518CFF;

Brightness & contrast

Relative luminance0.27725WCAG 2.x, 0 is black and 1 is white
Perceived brightness144.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.55:1
Contrast with white3.21:1WCAG normal text: Fail
Contrast with black6.55:1WCAG normal text: AA
Greyscale equivalent#888888
Inverted#AE7300

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#5298FFno red cones; affects about 1% of men; ΔE 9.3 from the original
Deuteranopia#2F88FDno green cones; the most common form, about 1% of men; ΔE 4.1 from the original
Tritanopia#00A7B9no blue cones; rare, and affects men and women equally; ΔE 63.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.21:1WCAG large text: AA
Contrast with black, large text6.55:1WCAG large text: AAA

Named colours

Dodgerblue · ΔE 7.5Royal blue · ΔE 14.9Cornflower blue · ΔE 16Medium purple · ΔE 23.7Slate blue · ΔE 24Medium slateblue · ΔE 24.9
Nearest named CSS colourDodgerblue (#1E90FF)ΔE 7.53, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FFC451
Analogous#51E3FF, #6D51FF
Triadic#FF518C, #8CFF51
Split complementary#FF6D51, #E3FF51
Tetradic#FF51E3, #FFC451, #51FF6D

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#EAF1FF
Lighter +20%#B7CFFF
Lighter +10%#84AEFF
Darker −10%#1E6AFF
Darker −20%#004FEA
Darker −30%#003EB7
Darker −40%#002D84
More saturated +25%#518CFF
Less saturated −25%#6793E9

Channel breakdown

R81
G140
B255
Red81 (31.8%)
Green140 (54.9%)
Blue255 (100%)
Hue219.66°
Saturation (HSL)100%
Lightness65.88%
Dominant channelBlue
Hex per channelR 51 · G 8C · B FF

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Every value on this page was computed from “518cff” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.