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Recognised as Colour

#817CE5

  • #817CE5
  • Blue
  • Dark
  • Nearest: Medium purple

#817CE5 is a blue with RGB values 129, 124, 229 and HSL 243°, 67%, 69%. It is a dark colour, so black text on it reaches 5.9:1 contrast (AA for normal text). The nearest named colour is Medium purple.

Colour values

#817CE5#817CE5
HEX#817CE5
RGBrgb(129, 124, 229)
RGB (0–1)0.5059, 0.4863, 0.898
RGB percentages50.6%, 48.6%, 89.8%
HSLhsl(242.9, 66.9%, 69.2%)
HSV / HSBhsv(242.9, 45.9%, 89.8%)
CMYK43.7%, 45.9%, 0%, 10.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer8,486,117
CSS custom property--colour: #817CE5;

Brightness & contrast

Relative luminance0.2474WCAG 2.x, 0 is black and 1 is white
Perceived brightness141.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.95:1
Contrast with white3.53:1WCAG normal text: Fail
Contrast with black5.95:1WCAG normal text: AA
Greyscale equivalent#858585
Inverted#7E831A

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#528CE9no red cones; affects about 1% of men; ΔE 18.1 from the original
Deuteranopia#4E85E3no green cones; the most common form, about 1% of men; ΔE 16.5 from the original
Tritanopia#6192A5no blue cones; rare, and affects men and women equally; ΔE 54.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.53:1WCAG large text: AA
Contrast with black, large text5.95:1WCAG large text: AAA

Named colours

Medium purple · ΔE 9.3Slate blue · ΔE 14.8Royal blue · ΔE 15.4Medium slateblue · ΔE 18.7Cornflower blue · ΔE 19.7Dodgerblue · ΔE 21.1
Nearest named CSS colourMedium purple (#9370DB)ΔE 9.35, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#E0E57C
Analogous#7CABE5, #B67CE5
Triadic#E5817C, #7CE581
Split complementary#E5B57C, #ACE57C
Tetradic#E57CAB, #E0E57C, #7CE5B6

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#FCFCFE
Lighter +20%#D3D1F6
Lighter +10%#AAA7ED
Darker −10%#5851DD
Darker −20%#322AD1
Darker −30%#2721A7
Darker −40%#1D197C
More saturated +25%#6F68F9
Less saturated −25%#9390D1

Channel breakdown

R129
G124
B229
Red129 (50.6%)
Green124 (48.6%)
Blue229 (89.8%)
Hue242.86°
Saturation (HSL)66.88%
Lightness69.22%
Dominant channelBlue
Hex per channelR 81 · G 7C · B E5

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Every value on this page was computed from “817ce5” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.