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Recognised as Colour

#A3C6D9

  • #A3C6D9
  • Blue
  • Light
  • Nearest: Light steelblue

#A3C6D9 is a blue with RGB values 163, 198, 217 and HSL 201°, 42%, 75%. It is a light colour, so black text on it reaches 11.6:1 contrast (AAA for normal text). The nearest named colour is Light steelblue.

Colour values

#A3C6D9#A3C6D9
HEX#A3C6D9
RGBrgb(163, 198, 217)
RGB (0–1)0.6392, 0.7765, 0.851
RGB percentages63.9%, 77.6%, 85.1%
HSLhsl(201.1, 41.5%, 74.5%)
HSV / HSBhsv(201.1, 24.9%, 85.1%)
CMYK24.9%, 8.8%, 0%, 14.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer10,733,273
CSS custom property--colour: #A3C6D9;

Brightness & contrast

Relative luminance0.53184WCAG 2.x, 0 is black and 1 is white
Perceived brightness190.6 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 11.64:1
Contrast with white1.8:1WCAG normal text: Fail
Contrast with black11.64:1WCAG normal text: AAA
Greyscale equivalent#C0C0C0
Inverted#5C3926

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#BDC4DAno red cones; affects about 1% of men; ΔE 9.6 from the original
Deuteranopia#B5BED9no green cones; the most common form, about 1% of men; ΔE 10 from the original
Tritanopia#93CBCCno blue cones; rare, and affects men and women equally; ΔE 12.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text1.8:1WCAG large text: Fail
Contrast with black, large text11.64:1WCAG large text: AAA

Named colours

Light steelblue · ΔE 6.5Light blue · ΔE 7Sky blue · ΔE 11Powder blue · ΔE 11.8Silver · ΔE 15.2Light skyblue · ΔE 15.7
Nearest named CSS colourLight steelblue (#B0C4DE)ΔE 6.45, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#D9B6A3
Analogous#A3D9D1, #A3ABD9
Triadic#D9A3C6, #C6D9A3
Split complementary#D9A3AB, #D9D1A3
Tetradic#D1A3D9, #D9B6A3, #ABD9A3

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#FFFFFF
Lighter +20%#EBF3F7
Lighter +10%#C7DCE8
Darker −10%#7FB0CA
Darker −20%#5B99BB
Darker −30%#427FA1
Darker −40%#33637D
More saturated +25%#93CBE9
Less saturated −25%#B3C1C9

Channel breakdown

R163
G198
B217
Red163 (63.9%)
Green198 (77.6%)
Blue217 (85.1%)
Hue201.11°
Saturation (HSL)41.54%
Lightness74.51%
Dominant channelBlue
Hex per channelR A3 · G C6 · B D9

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Every value on this page was computed from “a3c6d9” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.