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Colour

#55BFFF

  • #55BFFF
  • Blue
  • Dark
  • Nearest: Deep skyblue

#55BFFF is a blue with RGB values 85, 191, 255 and HSL 203°, 100%, 67%. It is a dark colour, so black text on it reaches 10.3:1 contrast (AAA for normal text). The nearest named colour is Deep skyblue.

Colour values

#55BFFF#55BFFF
HEX#55BFFF
RGBrgb(85, 191, 255)
RGB (0–1)0.3333, 0.749, 1
RGB percentages33.3%, 74.9%, 100%
HSLhsl(202.6, 100%, 66.7%)
HSV / HSBhsv(202.6, 66.7%, 100%)
CMYK66.7%, 25.1%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,619,711
CSS custom property--colour: #55BFFF;

Brightness & contrast

Relative luminance0.46413WCAG 2.x, 0 is black and 1 is white
Perceived brightness176 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 10.28:1
Contrast with white2.04:1WCAG normal text: Fail
Contrast with black10.28:1WCAG normal text: AAA
Greyscale equivalent#ADADAD
Inverted#AA4000

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#A1BFFFno red cones; affects about 1% of men; ΔE 17.5 from the original
Deuteranopia#8AAEFEno green cones; the most common form, about 1% of men; ΔE 19.9 from the original
Tritanopia#00CFD5no blue cones; rare, and affects men and women equally; ΔE 38 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.04:1WCAG large text: Fail
Contrast with black, large text10.28:1WCAG large text: AAA

Named colours

Deep skyblue · ΔE 7Light skyblue · ΔE 13.4Sky blue · ΔE 20.3Steel blue · ΔE 24Cornflower blue · ΔE 25.2Light steelblue · ΔE 27.5
Nearest named CSS colourDeep skyblue (#00BFFF)ΔE 6.98, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FF9555
Analogous#55FFEA, #556AFF
Triadic#FF55BF, #BFFF55
Split complementary#FF556A, #FFEA55
Tetradic#EA55FF, #FF9555, #6AFF55

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#EEF9FF
Lighter +20%#BBE5FF
Lighter +10%#88D2FF
Darker −10%#22ACFF
Darker −20%#0094EE
Darker −30%#0075BB
Darker −40%#005588
More saturated +25%#55BFFF
Less saturated −25%#6ABAEA

Channel breakdown

R85
G191
B255
Red85 (33.3%)
Green191 (74.9%)
Blue255 (100%)
Hue202.59°
Saturation (HSL)100%
Lightness66.67%
Dominant channelBlue
Hex per channelR 55 · G BF · B FF

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