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Colour

#09AAFF

  • #09AAFF
  • Blue
  • Dark
  • Nearest: Deep skyblue

#09AAFF is a blue with RGB values 9, 170, 255 and HSL 201°, 100%, 52%. It is a dark colour, so black text on it reaches 8.2:1 contrast (AAA for normal text). The nearest named colour is Deep skyblue.

Colour values

#09AAFF#09AAFF
HEX#09AAFF
RGBrgb(9, 170, 255)
RGB (0–1)0.0353, 0.6667, 1
RGB percentages3.5%, 66.7%, 100%
HSLhsl(200.7, 100%, 51.8%)
HSV / HSBhsv(200.7, 96.5%, 100%)
CMYK96.5%, 33.3%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer633,599
CSS custom property--colour: #09AAFF;

Brightness & contrast

Relative luminance0.36028WCAG 2.x, 0 is black and 1 is white
Perceived brightness156.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 8.21:1
Contrast with white2.56:1WCAG normal text: Fail
Contrast with black8.21:1WCAG normal text: AAA
Greyscale equivalent#8E8E8E
Inverted#F65500

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#81ADFFno red cones; affects about 1% of men; ΔE 15.4 from the original
Deuteranopia#6199FDno green cones; the most common form, about 1% of men; ΔE 18.2 from the original
Tritanopia#00BFC9no blue cones; rare, and affects men and women equally; ΔE 46.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.56:1WCAG large text: Fail
Contrast with black, large text8.21:1WCAG large text: AAA

Named colours

Deep skyblue · ΔE 16.1Cornflower blue · ΔE 16.3Dodgerblue · ΔE 20.9Steel blue · ΔE 24.4Light skyblue · ΔE 27.4Sky blue · ΔE 34.4
Nearest named CSS colourDeep skyblue (#00BFFF)ΔE 16.15, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FF5E09
Analogous#09FFD9, #092FFF
Triadic#FF09AA, #AAFF09
Split complementary#FF092F, #FFD909
Tetradic#D909FF, #FF5E09, #2FFF09

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D5F0FF
Lighter +30%#A2DFFF
Lighter +20%#6FCDFF
Lighter +10%#3CBCFF
Darker −10%#008BD5
Darker −20%#006AA2
Darker −30%#00496F
Darker −40%#00273C
More saturated +25%#09AAFF
Less saturated −25%#28A1E0

Channel breakdown

R9
G170
B255
Red9 (3.5%)
Green170 (66.7%)
Blue255 (100%)
Hue200.73°
Saturation (HSL)100%
Lightness51.76%
Dominant channelBlue
Hex per channelR 09 · G AA · B FF

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Every value on this page was computed from “09aaff” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.