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Colour

#A3A3A3

  • #A3A3A3
  • Grey
  • Dark
  • Nearest: Dark grey

#A3A3A3 is a grey with RGB values 163, 163, 163 and HSL 0°, 0%, 64%. It is a dark colour, so black text on it reaches 8.3:1 contrast (AAA for normal text). The nearest named colour is Dark grey.

Colour values

#A3A3A3#A3A3A3
HEX#A3A3A3
RGBrgb(163, 163, 163)
RGB (0–1)0.6392, 0.6392, 0.6392
RGB percentages63.9%, 63.9%, 63.9%
HSLhsl(0, 0%, 63.9%)
HSV / HSBhsv(0, 0%, 63.9%)
CMYK0%, 0%, 0%, 36.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer10,724,259
CSS custom property--colour: #A3A3A3;

Brightness & contrast

Relative luminance0.36625WCAG 2.x, 0 is black and 1 is white
Perceived brightness163 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 8.33:1
Contrast with white2.52:1WCAG normal text: Fail
Contrast with black8.33:1WCAG normal text: AAA
Greyscale equivalent#A3A3A3
Inverted#5C5C5C

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#A3A3A3no red cones; affects about 1% of men; ΔE 0 from the original
Deuteranopia#A3A3A3no green cones; the most common form, about 1% of men; ΔE 0 from the original
Tritanopia#A3A3A3no blue cones; rare, and affects men and women equally; ΔE 0 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.52:1WCAG large text: Fail
Contrast with black, large text8.33:1WCAG large text: AAA

Named colours

Dark grey · ΔE 2.2Silver · ΔE 10.7Gray · ΔE 13.4Light slate grey · ΔE 15.8Light grey · ΔE 17.6Slate grey · ΔE 17.8
Nearest named CSS colourDark grey (#A9A9A9)ΔE 2.24, below the just-noticeable difference
Hue familygrey
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#A3A3A3
Analogous#A3A3A3, #A3A3A3
Triadic#A3A3A3, #A3A3A3
Split complementary#A3A3A3, #A3A3A3
Tetradic#A3A3A3, #A3A3A3, #A3A3A3

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#EFEFEF
Lighter +20%#D6D6D6
Lighter +10%#BCBCBC
Darker −10%#8A8A8A
Darker −20%#707070
Darker −30%#565656
Darker −40%#3D3D3D
More saturated +25%#BA8C8C
Less saturated −25%#A3A3A3

Channel breakdown

R163
G163
B163
Red163 (63.9%)
Green163 (63.9%)
Blue163 (63.9%)
Hue0°
Saturation (HSL)0%
Lightness63.92%
Dominant channelNone: the channels are equal (a neutral grey)
Hex per channelR A3 · G A3 · B A3

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Every value on this page was computed from “a3a3a3” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.