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Recognised as Colour

#64CEFF

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

#64CEFF is a cyan with RGB values 100, 206, 255 and HSL 199°, 100%, 70%. It is a light colour, so black text on it reaches 11.8:1 contrast (AAA for normal text). The nearest named colour is Light skyblue.

Colour values

#64CEFF#64CEFF
HEX#64CEFF
RGBrgb(100, 206, 255)
RGB (0–1)0.3922, 0.8078, 1
RGB percentages39.2%, 80.8%, 100%
HSLhsl(199, 100%, 69.6%)
HSV / HSBhsv(199, 60.8%, 100%)
CMYK60.8%, 19.2%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,606,591
CSS custom property--colour: #64CEFF;

Brightness & contrast

Relative luminance0.54072WCAG 2.x, 0 is black and 1 is white
Perceived brightness187.9 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 11.81:1
Contrast with white1.78:1WCAG normal text: Fail
Contrast with black11.81:1WCAG normal text: AAA
Greyscale equivalent#BBBBBB
Inverted#9B3100

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#B5CBFFno red cones; affects about 1% of men; ΔE 21.5 from the original
Deuteranopia#A0BBFEno green cones; the most common form, about 1% of men; ΔE 23.6 from the original
Tritanopia#00DCDEno blue cones; rare, and affects men and women equally; ΔE 32.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text1.78:1WCAG large text: Fail
Contrast with black, large text11.81:1WCAG large text: AAA

Named colours

Light skyblue · ΔE 7.5Deep skyblue · ΔE 11.2Sky blue · ΔE 12Light blue · ΔE 23Light steelblue · ΔE 23.6Powder blue · ΔE 26.4
Nearest named CSS colourLight skyblue (#87CEFA)ΔE 7.49, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FF9564
Analogous#64FFE3, #6480FF
Triadic#FF64CE, #CEFF64
Split complementary#FF6480, #FFE364
Tetradic#E364FF, #FF9564, #80FF64

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#FDFEFF
Lighter +20%#CAEEFF
Lighter +10%#97DEFF
Darker −10%#31BEFF
Darker −20%#00ADFD
Darker −30%#008ACA
Darker −40%#006797
More saturated +25%#64CEFF
Less saturated −25%#77C7EC

Channel breakdown

R100
G206
B255
Red100 (39.2%)
Green206 (80.8%)
Blue255 (100%)
Hue198.97°
Saturation (HSL)100%
Lightness69.61%
Dominant channelBlue
Hex per channelR 64 · G CE · B FF

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