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Recognised as Colour

#64C5F0

  • #64C5F0
  • Cyan
  • Dark
  • Nearest: Light skyblue

#64C5F0 is a cyan with RGB values 100, 197, 240 and HSL 198°, 82%, 67%. It is a dark colour, so black text on it reaches 10.8:1 contrast (AAA for normal text). The nearest named colour is Light skyblue.

Colour values

#64C5F0#64C5F0
HEX#64C5F0
RGBrgb(100, 197, 240)
RGB (0–1)0.3922, 0.7725, 0.9412
RGB percentages39.2%, 77.3%, 94.1%
HSLhsl(198.4, 82.4%, 66.7%)
HSV / HSBhsv(198.4, 58.3%, 94.1%)
CMYK58.3%, 17.9%, 0%, 5.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,604,272
CSS custom property--colour: #64C5F0;

Brightness & contrast

Relative luminance0.48933WCAG 2.x, 0 is black and 1 is white
Perceived brightness179.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 10.79:1
Contrast with white1.95:1WCAG normal text: Fail
Contrast with black10.79:1WCAG normal text: AAA
Greyscale equivalent#B3B3B3
Inverted#9B3A0F

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#AFC2F2no red cones; affects about 1% of men; ΔE 21.1 from the original
Deuteranopia#9BB3EFno green cones; the most common form, about 1% of men; ΔE 22.6 from the original
Tritanopia#00D1D3no blue cones; rare, and affects men and women equally; ΔE 29.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text1.95:1WCAG large text: Fail
Contrast with black, large text10.79:1WCAG large text: AAA

Named colours

Light skyblue · ΔE 7.2Sky blue · ΔE 9.5Deep skyblue · ΔE 13Light blue · ΔE 21Light steelblue · ΔE 21.3Powder blue · ΔE 24.5
Nearest named CSS colourLight skyblue (#87CEFA)ΔE 7.16, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#F08F64
Analogous#64F0D5, #647FF0
Triadic#F064C5, #C5F064
Split complementary#F0647F, #F0D564
Tetradic#D564F0, #F08F64, #7FF064

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#EFF9FD
Lighter +20%#C1E8F9
Lighter +10%#93D6F5
Darker −10%#35B4EB
Darker −20%#159DD9
Darker −30%#107BAA
Darker −40%#0C5A7C
More saturated +25%#55CBFF
Less saturated −25%#79BDDB

Channel breakdown

R100
G197
B240
Red100 (39.2%)
Green197 (77.3%)
Blue240 (94.1%)
Hue198.43°
Saturation (HSL)82.35%
Lightness66.67%
Dominant channelBlue
Hex per channelR 64 · G C5 · B F0

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Every value on this page was computed from “64c5f0” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.