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Recognised as Colour

#A3A3DD

  • #A3A3DD
  • Blue
  • Dark
  • Nearest: Cornflower blue

#A3A3DD is a blue with RGB values 163, 163, 221 and HSL 240°, 46%, 75%. It is a dark colour, so black text on it reaches 8.8:1 contrast (AAA for normal text). The nearest named colour is Cornflower blue.

Colour values

#A3A3DD#A3A3DD
HEX#A3A3DD
RGBrgb(163, 163, 221)
RGB (0–1)0.6392, 0.6392, 0.8667
RGB percentages63.9%, 63.9%, 86.7%
HSLhsl(240, 46%, 75.3%)
HSV / HSBhsv(240, 26.2%, 86.7%)
CMYK26.2%, 26.2%, 0%, 13.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer10,724,317
CSS custom property--colour: #A3A3DD;

Brightness & contrast

Relative luminance0.39201WCAG 2.x, 0 is black and 1 is white
Perceived brightness170.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 8.84:1
Contrast with white2.38:1WCAG normal text: Fail
Contrast with black8.84:1WCAG normal text: AAA
Greyscale equivalent#A7A7A7
Inverted#5C5C22

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#93AADFno red cones; affects about 1% of men; ΔE 8.1 from the original
Deuteranopia#91A6DBno green cones; the most common form, about 1% of men; ΔE 7.4 from the original
Tritanopia#95ADB7no blue cones; rare, and affects men and women equally; ΔE 28.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.38:1WCAG large text: Fail
Contrast with black, large text8.84:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 21.4Plum · ΔE 21.7Light steelblue · ΔE 22Thistle · ΔE 23Steel blue · ΔE 23.6Light skyblue · ΔE 25.8
Nearest named CSS colourCornflower blue (#6495ED)ΔE 21.43, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#DDDDA3
Analogous#A3C0DD, #C0A3DD
Triadic#DDA3A3, #A3DDA3
Split complementary#DDC0A3, #C0DDA3
Tetradic#DDA3C0, #DDDDA3, #A3DDC0

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#FFFFFF
Lighter +20%#EDEDF9
Lighter +10%#C8C8EB
Darker −10%#7E7ECF
Darker −20%#5959C1
Darker −30%#3E3EA9
Darker −40%#313183
More saturated +25%#9393ED
Less saturated −25%#B3B3CD

Channel breakdown

R163
G163
B221
Red163 (63.9%)
Green163 (63.9%)
Blue221 (86.7%)
Hue240°
Saturation (HSL)46.03%
Lightness75.29%
Dominant channelBlue
Hex per channelR A3 · G A3 · B DD

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Every value on this page was computed from “a3a3dd” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.