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Colour

#99FEFF

  • #99FEFF
  • Cyan
  • Light
  • Nearest: Pale turquoise

#99FEFF is a cyan with RGB values 153, 254, 255 and HSL 181°, 100%, 80%. It is a light colour, so black text on it reaches 18:1 contrast (AAA for normal text). The nearest named colour is Pale turquoise.

Colour values

#99FEFF#99FEFF
HEX#99FEFF
RGBrgb(153, 254, 255)
RGB (0–1)0.6, 0.9961, 1
RGB percentages60%, 99.6%, 100%
HSLhsl(180.6, 100%, 80%)
HSV / HSBhsv(180.6, 40%, 100%)
CMYK40%, 0.4%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer10,092,287
CSS custom property--colour: #99FEFF;

Brightness & contrast

Relative luminance0.84876WCAG 2.x, 0 is black and 1 is white
Perceived brightness228.7 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 17.98:1
Contrast with white1.17:1WCAG normal text: Fail
Contrast with black17.98:1WCAG normal text: AAA
Greyscale equivalent#E9E9E9
Inverted#660100

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#F2F5FFno red cones; affects about 1% of men; ΔE 30.5 from the original
Deuteranopia#E0E8FFno green cones; the most common form, about 1% of men; ΔE 31.1 from the original
Tritanopia#6AFFFEno blue cones; rare, and affects men and women equally; ΔE 10.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text1.17:1WCAG large text: Fail
Contrast with black, large text17.98:1WCAG large text: AAA

Named colours

Pale turquoise · ΔE 10.9Powder blue · ΔE 17.1Medium turquoise · ΔE 18.8Aqua · ΔE 19.5Cyan · ΔE 19.5Turquoise · ΔE 20.3
Nearest named CSS colourPale turquoise (#AFEEEE)ΔE 10.85, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FF9A99
Analogous#99FFCD, #99CBFF
Triadic#FF99FE, #FEFF99
Split complementary#FF99CB, #FFCD99
Tetradic#CD99FF, #FF9A99, #CBFF99

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#FFFFFF
Lighter +20%#FFFFFF
Lighter +10%#CCFEFF
Darker −10%#66FDFF
Darker −20%#33FDFF
Darker −30%#00FCFF
Darker −40%#00CACC
More saturated +25%#99FEFF
Less saturated −25%#A6F2F2

Channel breakdown

R153
G254
B255
Red153 (60%)
Green254 (99.6%)
Blue255 (100%)
Hue180.59°
Saturation (HSL)100%
Lightness80%
Dominant channelBlue
Hex per channelR 99 · G FE · B FF

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