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Recognised as Colour

#55D7F3

  • #55D7F3
  • Cyan
  • Light
  • Nearest: Sky blue

#55D7F3 is a cyan with RGB values 85, 215, 243 and HSL 191°, 87%, 64%. It is a light colour, so black text on it reaches 12.4:1 contrast (AAA for normal text). The nearest named colour is Sky blue.

Colour values

#55D7F3#55D7F3
HEX#55D7F3
RGBrgb(85, 215, 243)
RGB (0–1)0.3333, 0.8431, 0.9529
RGB percentages33.3%, 84.3%, 95.3%
HSLhsl(190.6, 86.8%, 64.3%)
HSV / HSBhsv(190.6, 65%, 95.3%)
CMYK65%, 11.5%, 0%, 4.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,625,843
CSS custom property--colour: #55D7F3;

Brightness & contrast

Relative luminance0.57003WCAG 2.x, 0 is black and 1 is white
Perceived brightness189.8 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 12.4:1
Contrast with white1.69:1WCAG normal text: Fail
Contrast with black12.4:1WCAG normal text: AAA
Greyscale equivalent#BDBDBD
Inverted#AA280C

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#C3D0F5no red cones; affects about 1% of men; ΔE 30.9 from the original
Deuteranopia#ACC0F3no green cones; the most common form, about 1% of men; ΔE 31.9 from the original
Tritanopia#00E2E0no blue cones; rare, and affects men and women equally; ΔE 21.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text1.69:1WCAG large text: Fail
Contrast with black, large text12.4:1WCAG large text: AAA

Named colours

Sky blue · ΔE 12.7Light skyblue · ΔE 16.9Dark turquoise · ΔE 17.5Medium turquoise · ΔE 19.2Light blue · ΔE 21Powder blue · ΔE 21.7
Nearest named CSS colourSky blue (#87CEEB)ΔE 12.69, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#F37155
Analogous#55F3C0, #5588F3
Triadic#F355D7, #D7F355
Split complementary#F35588, #F3C055
Tetradic#C055F3, #F37155, #88F355

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#E4F9FD
Lighter +20%#B4EDFA
Lighter +10%#85E2F6
Darker −10%#25CCF0
Darker −20%#0FB0D3
Darker −30%#0C89A3
Darker −40%#086174
More saturated +25%#49DFFF
Less saturated −25%#6CC8DC

Channel breakdown

R85
G215
B243
Red85 (33.3%)
Green215 (84.3%)
Blue243 (95.3%)
Hue190.63°
Saturation (HSL)86.81%
Lightness64.31%
Dominant channelBlue
Hex per channelR 55 · G D7 · B F3

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Every value on this page was computed from “55d7f3” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.