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Recognised as Colour

#53B1DD

  • #53B1DD
  • Cyan
  • Dark
  • Nearest: Light skyblue

#53B1DD is a cyan with RGB values 83, 177, 221 and HSL 199°, 67%, 60%. It is a dark colour, so black text on it reaches 8.7:1 contrast (AAA for normal text). The nearest named colour is Light skyblue.

Colour values

#53B1DD#53B1DD
HEX#53B1DD
RGBrgb(83, 177, 221)
RGB (0–1)0.3255, 0.6941, 0.8667
RGB percentages32.5%, 69.4%, 86.7%
HSLhsl(199.1, 67%, 59.6%)
HSV / HSBhsv(199.1, 62.4%, 86.7%)
CMYK62.4%, 19.9%, 0%, 13.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,485,021
CSS custom property--colour: #53B1DD;

Brightness & contrast

Relative luminance0.38504WCAG 2.x, 0 is black and 1 is white
Perceived brightness161.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 8.7:1
Contrast with white2.41:1WCAG normal text: Fail
Contrast with black8.7:1WCAG normal text: AAA
Greyscale equivalent#A0A0A0
Inverted#AC4E22

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#9BAFDFno red cones; affects about 1% of men; ΔE 19.4 from the original
Deuteranopia#88A1DCno green cones; the most common form, about 1% of men; ΔE 20.7 from the original
Tritanopia#00BDC0no blue cones; rare, and affects men and women equally; ΔE 28.8 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.41:1WCAG large text: Fail
Contrast with black, large text8.7:1WCAG large text: AAA

Named colours

Light skyblue · ΔE 12.1Deep skyblue · ΔE 13.1Sky blue · ΔE 14.2Steel blue · ΔE 19.2Light steelblue · ΔE 22.7Cadetblue · ΔE 24.6
Nearest named CSS colourLight skyblue (#87CEFA)ΔE 12.13, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#DD7F53
Analogous#53DDC4, #536CDD
Triadic#DD53B1, #B1DD53
Split complementary#DD536C, #DDC453
Tetradic#C453DD, #DD7F53, #6CDD53

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FDFEFF
Lighter +30%#D3EBF6
Lighter +20%#A8D8EE
Lighter +10%#7EC4E5
Darker −10%#2A9DD3
Darker −20%#217EA9
Darker −30%#195E7E
Darker −40%#113E53
More saturated +25%#39BAF7
Less saturated −25%#6DA8C3

Channel breakdown

R83
G177
B221
Red83 (32.5%)
Green177 (69.4%)
Blue221 (86.7%)
Hue199.13°
Saturation (HSL)66.99%
Lightness59.61%
Dominant channelBlue
Hex per channelR 53 · G B1 · B DD

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Every value on this page was computed from “53b1dd” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.