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Recognised as Colour

#A1D8DD

  • #A1D8DD
  • Cyan
  • Light
  • Nearest: Powder blue

#A1D8DD is a cyan with RGB values 161, 216, 221 and HSL 185°, 47%, 75%. It is a light colour, so black text on it reaches 13.4:1 contrast (AAA for normal text). The nearest named colour is Powder blue.

Colour values

#A1D8DD#A1D8DD
HEX#A1D8DD
RGBrgb(161, 216, 221)
RGB (0–1)0.6314, 0.8471, 0.8667
RGB percentages63.1%, 84.7%, 86.7%
HSLhsl(185, 46.9%, 74.9%)
HSV / HSBhsv(185, 27.1%, 86.7%)
CMYK27.1%, 2.3%, 0%, 13.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer10,606,813
CSS custom property--colour: #A1D8DD;

Brightness & contrast

Relative luminance0.61909WCAG 2.x, 0 is black and 1 is white
Perceived brightness201.8 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 13.38:1
Contrast with white1.57:1WCAG normal text: Fail
Contrast with black13.38:1WCAG normal text: AAA
Greyscale equivalent#CDCDCD
Inverted#5E2722

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#D0D3DDno red cones; affects about 1% of men; ΔE 17.6 from the original
Deuteranopia#C5CBDDno green cones; the most common form, about 1% of men; ΔE 18 from the original
Tritanopia#8DDCD9no blue cones; rare, and affects men and women equally; ΔE 8.7 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text1.57:1WCAG large text: Fail
Contrast with black, large text13.38:1WCAG large text: AAA

Named colours

Powder blue · ΔE 4Light blue · ΔE 6.5Pale turquoise · ΔE 8.1Sky blue · ΔE 13.7Light cyan · ΔE 17Light steelblue · ΔE 17.3
Nearest named CSS colourPowder blue (#B0E0E6)ΔE 4.01, a close match
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#DDA6A1
Analogous#A1DDC4, #A1BADD
Triadic#DDA1D8, #D8DDA1
Split complementary#DDA1BA, #DDC4A1
Tetradic#C4A1DD, #DDA6A1, #BADDA1

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#FFFFFF
Lighter +20%#ECF7F8
Lighter +10%#C6E8EB
Darker −10%#7CC8CF
Darker −20%#56B9C2
Darker −30%#3D9FA8
Darker −40%#2F7C83
More saturated +25%#91E5ED
Less saturated −25%#B1CBCD

Channel breakdown

R161
G216
B221
Red161 (63.1%)
Green216 (84.7%)
Blue221 (86.7%)
Hue185°
Saturation (HSL)46.88%
Lightness74.9%
Dominant channelBlue
Hex per channelR A1 · G D8 · B DD

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Every value on this page was computed from “a1d8dd” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.