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Recognised as Colour

#99FFDD

  • #99FFDD
  • Cyan
  • Light
  • Nearest: Aquamarine

#99FFDD is a cyan with RGB values 153, 255, 221 and HSL 160°, 100%, 80%. It is a light colour, so black text on it reaches 17.7:1 contrast (AAA for normal text). The nearest named colour is Aquamarine.

Colour values

#99FFDD#99FFDD
HEX#99FFDD
HEX (short)#9FD
RGBrgb(153, 255, 221)
RGB (0–1)0.6, 1, 0.8667
RGB percentages60%, 100%, 86.7%
HSLhsl(160, 100%, 80%)
HSV / HSBhsv(160, 40%, 100%)
CMYK40%, 0%, 13.3%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer10,092,509
CSS custom property--colour: #99FFDD;

Brightness & contrast

Relative luminance0.83513WCAG 2.x, 0 is black and 1 is white
Perceived brightness225.2 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 17.7:1
Contrast with white1.19:1WCAG normal text: Fail
Contrast with black17.7:1WCAG normal text: AAA
Greyscale equivalent#E7E7E7
Inverted#660022

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#FAF3DBno red cones; affects about 1% of men; ΔE 36.3 from the original
Deuteranopia#E9E7DFno green cones; the most common form, about 1% of men; ΔE 36.8 from the original
Tritanopia#7AFFF5no blue cones; rare, and affects men and women equally; ΔE 13.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text1.19:1WCAG large text: Fail
Contrast with black, large text17.7:1WCAG large text: AAA

Named colours

Aquamarine · ΔE 8.7Turquoise · ΔE 17.6Medium aquamarine · ΔE 17.6Medium turquoise · ΔE 22.4Pale turquoise · ΔE 22.4Aqua · ΔE 23.7
Nearest named CSS colourAquamarine (#7FFFD4)ΔE 8.72, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FF99BB
Analogous#99FFAA, #99EEFF
Triadic#DD99FF, #FFDD99
Split complementary#FF99EE, #FFAA99
Tetradic#AA99FF, #FF99BB, #EEFF99

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#FFFFFF
Lighter +20%#FFFFFF
Lighter +10%#CCFFEE
Darker −10%#66FFCC
Darker −20%#33FFBB
Darker −30%#00FFAA
Darker −40%#00CC88
More saturated +25%#99FFDD
Less saturated −25%#A6F2D9

Channel breakdown

R153
G255
B221
Red153 (60%)
Green255 (100%)
Blue221 (86.7%)
Hue160°
Saturation (HSL)100%
Lightness80%
Dominant channelGreen
Hex per channelR 99 · G FF · B DD

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Every value on this page was computed from “99ffdd” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.