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Colour

#55CDFF

  • #55CDFF
  • Cyan
  • Light
  • Nearest: Deep skyblue

#55CDFF is a cyan with RGB values 85, 205, 255 and HSL 198°, 100%, 67%. It is a light colour, so black text on it reaches 11.6:1 contrast (AAA for normal text). The nearest named colour is Deep skyblue.

Colour values

#55CDFF#55CDFF
HEX#55CDFF
RGBrgb(85, 205, 255)
RGB (0–1)0.3333, 0.8039, 1
RGB percentages33.3%, 80.4%, 100%
HSLhsl(197.6, 100%, 66.7%)
HSV / HSBhsv(197.6, 66.7%, 100%)
CMYK66.7%, 19.6%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,623,295
CSS custom property--colour: #55CDFF;

Brightness & contrast

Relative luminance0.52814WCAG 2.x, 0 is black and 1 is white
Perceived brightness185 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 11.56:1
Contrast with white1.82:1WCAG normal text: Fail
Contrast with black11.56:1WCAG normal text: AAA
Greyscale equivalent#B7B7B7
Inverted#AA3200

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#B3CAFFno red cones; affects about 1% of men; ΔE 23.5 from the original
Deuteranopia#9CB9FEno green cones; the most common form, about 1% of men; ΔE 25.5 from the original
Tritanopia#00DBDDno blue cones; rare, and affects men and women equally; ΔE 31.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text1.82:1WCAG large text: Fail
Contrast with black, large text11.56:1WCAG large text: AAA

Named colours

Deep skyblue · ΔE 9.8Light skyblue · ΔE 9.8Sky blue · ΔE 13.6Light blue · ΔE 24.8Light steelblue · ΔE 25.7Powder blue · ΔE 28
Nearest named CSS colourDeep skyblue (#00BFFF)ΔE 9.75, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FF8755
Analogous#55FFDC, #5578FF
Triadic#FF55CD, #CDFF55
Split complementary#FF5578, #FFDC55
Tetradic#DC55FF, #FF8755, #78FF55

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#EEFAFF
Lighter +20%#BBEBFF
Lighter +10%#88DCFF
Darker −10%#22BEFF
Darker −20%#00A8EE
Darker −30%#0084BB
Darker −40%#006088
More saturated +25%#55CDFF
Less saturated −25%#6AC4EA

Channel breakdown

R85
G205
B255
Red85 (33.3%)
Green205 (80.4%)
Blue255 (100%)
Hue197.65°
Saturation (HSL)100%
Lightness66.67%
Dominant channelBlue
Hex per channelR 55 · G CD · B FF

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Every value on this page was computed from “55cdff” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.