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Recognised as Colour

#55ADE5

  • #55ADE5
  • Blue
  • Dark
  • Nearest: Deep skyblue

#55ADE5 is a blue with RGB values 85, 173, 229 and HSL 203°, 73%, 62%. It is a dark colour, so black text on it reaches 8.5:1 contrast (AAA for normal text). The nearest named colour is Deep skyblue.

Colour values

#55ADE5#55ADE5
HEX#55ADE5
RGBrgb(85, 173, 229)
RGB (0–1)0.3333, 0.6784, 0.898
RGB percentages33.3%, 67.8%, 89.8%
HSLhsl(203.3, 73.5%, 61.6%)
HSV / HSBhsv(203.3, 62.9%, 89.8%)
CMYK62.9%, 24.5%, 0%, 10.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,615,077
CSS custom property--colour: #55ADE5;

Brightness & contrast

Relative luminance0.37476WCAG 2.x, 0 is black and 1 is white
Perceived brightness160.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 8.5:1
Contrast with white2.47:1WCAG normal text: Fail
Contrast with black8.5:1WCAG normal text: AAA
Greyscale equivalent#9E9E9E
Inverted#AA521A

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#93ADE8no red cones; affects about 1% of men; ΔE 15.7 from the original
Deuteranopia#809EE4no green cones; the most common form, about 1% of men; ΔE 17.7 from the original
Tritanopia#00BBC0no blue cones; rare, and affects men and women equally; ΔE 35 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.47:1WCAG large text: Fail
Contrast with black, large text8.5:1WCAG large text: AAA

Named colours

Deep skyblue · ΔE 11.4Light skyblue · ΔE 14.3Steel blue · ΔE 16.6Sky blue · ΔE 19.4Cornflower blue · ΔE 23.9Light steelblue · ΔE 24.9
Nearest named CSS colourDeep skyblue (#00BFFF)ΔE 11.44, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#E58D55
Analogous#55E5D5, #5565E5
Triadic#E555AD, #ADE555
Split complementary#E55565, #E5D555
Tetradic#D555E5, #E58D55, #65E555

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#DAEDF9
Lighter +20%#ADD8F3
Lighter +10%#81C2EC
Darker −10%#2998DE
Darker −20%#1C7BB8
Darker −30%#155E8C
Darker −40%#0F405F
More saturated +25%#3DB2FE
Less saturated −25%#6EA8CD

Channel breakdown

R85
G173
B229
Red85 (33.3%)
Green173 (67.8%)
Blue229 (89.8%)
Hue203.33°
Saturation (HSL)73.47%
Lightness61.57%
Dominant channelBlue
Hex per channelR 55 · G AD · B E5

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Every value on this page was computed from “55ade5” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.