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Recognised as Colour

#A3ABD9

  • #A3ABD9
  • Blue
  • Dark
  • Nearest: Light steelblue

#A3ABD9 is a blue with RGB values 163, 171, 217 and HSL 231°, 42%, 75%. It is a dark colour, so black text on it reaches 9.4:1 contrast (AAA for normal text). The nearest named colour is Light steelblue.

Colour values

#A3ABD9#A3ABD9
HEX#A3ABD9
RGBrgb(163, 171, 217)
RGB (0–1)0.6392, 0.6706, 0.851
RGB percentages63.9%, 67.1%, 85.1%
HSLhsl(231.1, 41.5%, 74.5%)
HSV / HSBhsv(231.1, 24.9%, 85.1%)
CMYK24.9%, 21.2%, 0%, 14.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer10,726,361
CSS custom property--colour: #A3ABD9;

Brightness & contrast

Relative luminance0.41922WCAG 2.x, 0 is black and 1 is white
Perceived brightness174.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 9.38:1
Contrast with white2.24:1WCAG normal text: Fail
Contrast with black9.38:1WCAG normal text: AAA
Greyscale equivalent#ADADAD
Inverted#5C5426

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#9EAFDBno red cones; affects about 1% of men; ΔE 3.3 from the original
Deuteranopia#9BABD8no green cones; the most common form, about 1% of men; ΔE 2.7 from the original
Tritanopia#96B3BBno blue cones; rare, and affects men and women equally; ΔE 22.7 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.24:1WCAG large text: Fail
Contrast with black, large text9.38:1WCAG large text: AAA

Named colours

Light steelblue · ΔE 14.5Thistle · ΔE 18.6Light skyblue · ΔE 20.6Light slate grey · ΔE 21.9Steel blue · ΔE 23Sky blue · ΔE 23.8
Nearest named CSS colourLight steelblue (#B0C4DE)ΔE 14.5, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#D9D1A3
Analogous#A3C6D9, #B6A3D9
Triadic#D9A3AB, #ABD9A3
Split complementary#D9B6A3, #C6D9A3
Tetradic#D9A3C6, #D9D1A3, #A3D9B6

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#FFFFFF
Lighter +20%#EBEDF7
Lighter +10%#C7CCE8
Darker −10%#7F8ACA
Darker −20%#5B69BB
Darker −30%#4250A1
Darker −40%#333E7D
More saturated +25%#93A0E9
Less saturated −25%#B3B6C9

Channel breakdown

R163
G171
B217
Red163 (63.9%)
Green171 (67.1%)
Blue217 (85.1%)
Hue231.11°
Saturation (HSL)41.54%
Lightness74.51%
Dominant channelBlue
Hex per channelR A3 · G AB · B D9

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Every value on this page was computed from “a3abd9” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.