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Recognised as Colour

#91DBFF

  • #91DBFF
  • Cyan
  • Light
  • Nearest: Sky blue

#91DBFF is a cyan with RGB values 145, 219, 255 and HSL 200°, 100%, 78%. It is a light colour, so black text on it reaches 13.8:1 contrast (AAA for normal text). The nearest named colour is Sky blue.

Colour values

#91DBFF#91DBFF
HEX#91DBFF
RGBrgb(145, 219, 255)
RGB (0–1)0.5686, 0.8588, 1
RGB percentages56.9%, 85.9%, 100%
HSLhsl(199.6, 100%, 78.4%)
HSV / HSBhsv(199.6, 43.1%, 100%)
CMYK43.1%, 14.1%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer9,559,039
CSS custom property--colour: #91DBFF;

Brightness & contrast

Relative luminance0.63903WCAG 2.x, 0 is black and 1 is white
Perceived brightness204.6 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 13.78:1
Contrast with white1.52:1WCAG normal text: Fail
Contrast with black13.78:1WCAG normal text: AAA
Greyscale equivalent#CECECE
Inverted#6E2400

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#C9D8FFno red cones; affects about 1% of men; ΔE 17.5 from the original
Deuteranopia#B9CCFFno green cones; the most common form, about 1% of men; ΔE 18.8 from the original
Tritanopia#62E5E6no blue cones; rare, and affects men and women equally; ΔE 25.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text1.52:1WCAG large text: Fail
Contrast with black, large text13.78:1WCAG large text: AAA

Named colours

Sky blue · ΔE 5.9Light skyblue · ΔE 6.4Light blue · ΔE 13.6Light steelblue · ΔE 16.7Powder blue · ΔE 16.9Pale turquoise · ΔE 20.2
Nearest named CSS colourSky blue (#87CEEB)ΔE 5.91, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FFB591
Analogous#91FFEC, #91A4FF
Triadic#FF91DB, #DBFF91
Split complementary#FF91A4, #FFEC91
Tetradic#EC91FF, #FFB591, #A4FF91

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#FFFFFF
Lighter +20%#F7FCFF
Lighter +10%#C4ECFF
Darker −10%#5ECAFF
Darker −20%#2BBAFF
Darker −30%#00A6F7
Darker −40%#0084C4
More saturated +25%#91DBFF
Less saturated −25%#9FD6F1

Channel breakdown

R145
G219
B255
Red145 (56.9%)
Green219 (85.9%)
Blue255 (100%)
Hue199.64°
Saturation (HSL)100%
Lightness78.43%
Dominant channelBlue
Hex per channelR 91 · G DB · B FF

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Every value on this page was computed from “91dbff” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.