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Recognised as Colour

#ACD9EB

  • #ACD9EB
  • Cyan
  • Light
  • Nearest: Light blue

#ACD9EB is a cyan with RGB values 172, 217, 235 and HSL 197°, 61%, 80%. It is a light colour, so black text on it reaches 13.9:1 contrast (AAA for normal text). The nearest named colour is Light blue.

Colour values

#ACD9EB#ACD9EB
HEX#ACD9EB
RGBrgb(172, 217, 235)
RGB (0–1)0.6745, 0.851, 0.9216
RGB percentages67.5%, 85.1%, 92.2%
HSLhsl(197.1, 61.2%, 79.8%)
HSV / HSBhsv(197.1, 26.8%, 92.2%)
CMYK26.8%, 7.7%, 0%, 7.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer11,327,979
CSS custom property--colour: #ACD9EB;

Brightness & contrast

Relative luminance0.64395WCAG 2.x, 0 is black and 1 is white
Perceived brightness206.8 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 13.88:1
Contrast with white1.51:1WCAG normal text: Fail
Contrast with black13.88:1WCAG normal text: AAA
Greyscale equivalent#D1D1D1
Inverted#532614

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#CFD6ECno red cones; affects about 1% of men; ΔE 12.7 from the original
Deuteranopia#C5CFEBno green cones; the most common form, about 1% of men; ΔE 12.9 from the original
Tritanopia#98DFDEno blue cones; rare, and affects men and women equally; ΔE 13.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text1.51:1WCAG large text: Fail
Contrast with black, large text13.88:1WCAG large text: AAA

Named colours

Light blue · ΔE 2.2Powder blue · ΔE 6.9Sky blue · ΔE 10.1Light steelblue · ΔE 11Pale turquoise · ΔE 13Light skyblue · ΔE 15.6
Nearest named CSS colourLight blue (#ADD8E6)ΔE 2.18, below the just-noticeable difference
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#EBBEAC
Analogous#ACEBDD, #ACBAEB
Triadic#EBACD9, #D9EBAC
Split complementary#EBACBA, #EBDDAC
Tetradic#DEACEB, #EBBEAC, #BAEBAC

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#FFFFFF
Lighter +20%#FEFFFF
Lighter +10%#D5ECF5
Darker −10%#83C6E1
Darker −20%#5AB3D7
Darker −30%#31A0CD
Darker −40%#2780A4
More saturated +25%#9FDFF8
Less saturated −25%#B9D3DE

Channel breakdown

R172
G217
B235
Red172 (67.5%)
Green217 (85.1%)
Blue235 (92.2%)
Hue197.14°
Saturation (HSL)61.17%
Lightness79.8%
Dominant channelBlue
Hex per channelR AC · G D9 · B EB

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Every value on this page was computed from “acd9eb” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.