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Recognised as Colour

#A9B9D3

  • #A9B9D3
  • Blue
  • Dark
  • Nearest: Light steelblue

#A9B9D3 is a blue with RGB values 169, 185, 211 and HSL 217°, 32%, 75%. It is a dark colour, so black text on it reaches 10.6:1 contrast (AAA for normal text). The nearest named colour is Light steelblue.

Colour values

#A9B9D3#A9B9D3
HEX#A9B9D3
RGBrgb(169, 185, 211)
RGB (0–1)0.6627, 0.7255, 0.8275
RGB percentages66.3%, 72.5%, 82.7%
HSLhsl(217.1, 32.3%, 74.5%)
HSV / HSBhsv(217.1, 19.9%, 82.7%)
CMYK19.9%, 12.3%, 0%, 17.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer11,123,155
CSS custom property--colour: #A9B9D3;

Brightness & contrast

Relative luminance0.47836WCAG 2.x, 0 is black and 1 is white
Perceived brightness183.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 10.57:1
Contrast with white1.99:1WCAG normal text: Fail
Contrast with black10.57:1WCAG normal text: AAA
Greyscale equivalent#B7B7B7
Inverted#56462C

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#B1BAD4no red cones; affects about 1% of men; ΔE 2.5 from the original
Deuteranopia#ACB6D2no green cones; the most common form, about 1% of men; ΔE 2.5 from the original
Tritanopia#9FBEC1no blue cones; rare, and affects men and women equally; ΔE 13.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text1.99:1WCAG large text: Fail
Contrast with black, large text10.57:1WCAG large text: AAA

Named colours

Light steelblue · ΔE 4Light blue · ΔE 14.6Silver · ΔE 15.2Thistle · ΔE 15.4Dark grey · ΔE 15.9Sky blue · ΔE 16.8
Nearest named CSS colourLight steelblue (#B0C4DE)ΔE 3.96, a close match
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#D3C3A9
Analogous#A9CED3, #AEA9D3
Triadic#D3A9B9, #B9D3A9
Split complementary#D3AEA9, #CED3A9
Tetradic#D3A9CE, #D3C3A9, #A9D3AE

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#FFFFFF
Lighter +20%#ECF0F6
Lighter +10%#CBD4E4
Darker −10%#879EC2
Darker −20%#6682B0
Darker −30%#4D6996
Darker −40%#3C5174
More saturated +25%#99B5E3
Less saturated −25%#B9BDC3

Channel breakdown

R169
G185
B211
Red169 (66.3%)
Green185 (72.5%)
Blue211 (82.7%)
Hue217.14°
Saturation (HSL)32.31%
Lightness74.51%
Dominant channelBlue
Hex per channelR A9 · G B9 · B D3

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Every value on this page was computed from “a9b9d3” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.