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Recognised as Colour

#64CDFF

  • #64CDFF
  • Cyan
  • Light
  • Nearest: Light skyblue

#64CDFF is a cyan with RGB values 100, 205, 255 and HSL 199°, 100%, 70%. It is a light colour, so black text on it reaches 11.7:1 contrast (AAA for normal text). The nearest named colour is Light skyblue.

Colour values

#64CDFF#64CDFF
HEX#64CDFF
RGBrgb(100, 205, 255)
RGB (0–1)0.3922, 0.8039, 1
RGB percentages39.2%, 80.4%, 100%
HSLhsl(199.4, 100%, 69.6%)
HSV / HSBhsv(199.4, 60.8%, 100%)
CMYK60.8%, 19.6%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,606,335
CSS custom property--colour: #64CDFF;

Brightness & contrast

Relative luminance0.53592WCAG 2.x, 0 is black and 1 is white
Perceived brightness187.3 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 11.72:1
Contrast with white1.79:1WCAG normal text: Fail
Contrast with black11.72:1WCAG normal text: AAA
Greyscale equivalent#BABABA
Inverted#9B3200

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#B4CAFFno red cones; affects about 1% of men; ΔE 21.3 from the original
Deuteranopia#9EBAFEno green cones; the most common form, about 1% of men; ΔE 23.1 from the original
Tritanopia#00DBDDno blue cones; rare, and affects men and women equally; ΔE 33 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text1.79:1WCAG large text: Fail
Contrast with black, large text11.72:1WCAG large text: AAA

Named colours

Light skyblue · ΔE 7.4Deep skyblue · ΔE 10.7Sky blue · ΔE 12.4Light blue · ΔE 23.4Light steelblue · ΔE 23.6Powder blue · ΔE 26.9
Nearest named CSS colourLight skyblue (#87CEFA)ΔE 7.45, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FF9664
Analogous#64FFE4, #647FFF
Triadic#FF64CD, #CDFF64
Split complementary#FF647F, #FFE464
Tetradic#E464FF, #FF9664, #7FFF64

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#FDFEFF
Lighter +20%#CAEEFF
Lighter +10%#97DDFF
Darker −10%#31BDFF
Darker −20%#00ABFD
Darker −30%#0089CA
Darker −40%#006697
More saturated +25%#64CDFF
Less saturated −25%#77C6EC

Channel breakdown

R100
G205
B255
Red100 (39.2%)
Green205 (80.4%)
Blue255 (100%)
Hue199.35°
Saturation (HSL)100%
Lightness69.61%
Dominant channelBlue
Hex per channelR 64 · G CD · B FF

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Every value on this page was computed from “64cdff” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.