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Recognised as Colour

#817DE6

  • #817DE6
  • Blue
  • Dark
  • Nearest: Medium purple

#817DE6 is a blue with RGB values 129, 125, 230 and HSL 242°, 68%, 70%. It is a dark colour, so black text on it reaches 6:1 contrast (AA for normal text). The nearest named colour is Medium purple.

Colour values

#817DE6#817DE6
HEX#817DE6
RGBrgb(129, 125, 230)
RGB (0–1)0.5059, 0.4902, 0.902
RGB percentages50.6%, 49%, 90.2%
HSLhsl(242.3, 67.7%, 69.6%)
HSV / HSBhsv(242.3, 45.7%, 90.2%)
CMYK43.9%, 45.7%, 0%, 9.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer8,486,374
CSS custom property--colour: #817DE6;

Brightness & contrast

Relative luminance0.25048WCAG 2.x, 0 is black and 1 is white
Perceived brightness142 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.01:1
Contrast with white3.49:1WCAG normal text: Fail
Contrast with black6.01:1WCAG normal text: AA
Greyscale equivalent#858585
Inverted#7E8219

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#538DEAno red cones; affects about 1% of men; ΔE 17.9 from the original
Deuteranopia#4E86E4no green cones; the most common form, about 1% of men; ΔE 16.5 from the original
Tritanopia#6193A6no 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 text3.49:1WCAG large text: AA
Contrast with black, large text6.01:1WCAG large text: AAA

Named colours

Medium purple · ΔE 9.7Slate blue · ΔE 15.2Royal blue · ΔE 15.5Medium slateblue · ΔE 18.9Cornflower blue · ΔE 19.4Dodgerblue · ΔE 20.8
Nearest named CSS colourMedium purple (#9370DB)ΔE 9.72, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#E2E67D
Analogous#7DAEE6, #B57DE6
Triadic#E6817D, #7DE681
Split complementary#E6B57D, #AEE67D
Tetradic#E67DAE, #E2E67D, #7DE6B5

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#FDFDFF
Lighter +20%#D4D3F6
Lighter +10%#AAA8EE
Darker −10%#5852DE
Darker −20%#2F29D4
Darker −30%#2621A9
Darker −40%#1C187F
More saturated +25%#6F6AF9
Less saturated −25%#9390D3

Channel breakdown

R129
G125
B230
Red129 (50.6%)
Green125 (49%)
Blue230 (90.2%)
Hue242.29°
Saturation (HSL)67.74%
Lightness69.61%
Dominant channelBlue
Hex per channelR 81 · G 7D · B E6

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Every value on this page was computed from “817de6” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.