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Recognised as Colour

#81AFC6

  • #81AFC6
  • Blue
  • Dark
  • Nearest: Sky blue

#81AFC6 is a blue with RGB values 129, 175, 198 and HSL 200°, 38%, 64%. It is a dark colour, so black text on it reaches 8.9:1 contrast (AAA for normal text). The nearest named colour is Sky blue.

Colour values

#81AFC6#81AFC6
HEX#81AFC6
RGBrgb(129, 175, 198)
RGB (0–1)0.5059, 0.6863, 0.7765
RGB percentages50.6%, 68.6%, 77.6%
HSLhsl(200, 37.7%, 64.1%)
HSV / HSBhsv(200, 34.8%, 77.6%)
CMYK34.8%, 11.6%, 0%, 22.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer8,499,142
CSS custom property--colour: #81AFC6;

Brightness & contrast

Relative luminance0.39404WCAG 2.x, 0 is black and 1 is white
Perceived brightness165.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 8.88:1
Contrast with white2.36:1WCAG normal text: Fail
Contrast with black8.88:1WCAG normal text: AAA
Greyscale equivalent#A7A7A7
Inverted#7E5039

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#A4ADC7no red cones; affects about 1% of men; ΔE 12.3 from the original
Deuteranopia#9AA5C6no green cones; the most common form, about 1% of men; ΔE 13.1 from the original
Tritanopia#69B6B6no blue cones; rare, and affects men and women equally; ΔE 16.8 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.36:1WCAG large text: Fail
Contrast with black, large text8.88:1WCAG large text: AAA

Named colours

Sky blue · ΔE 12.3Light steelblue · ΔE 12.7Light blue · ΔE 15.7Cadetblue · ΔE 15.7Light skyblue · ΔE 16Light slate grey · ΔE 16
Nearest named CSS colourSky blue (#87CEEB)ΔE 12.33, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#C69881
Analogous#81C6BB, #818CC6
Triadic#C681AF, #AFC681
Split complementary#C6818D, #C6BB81
Tetradic#BB81C6, #C69881, #8DC681

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#EAF2F6
Lighter +20%#C7DCE6
Lighter +10%#A4C5D6
Darker −10%#5E99B6
Darker −20%#467F9B
Darker −30%#366278
Darker −40%#264555
More saturated +25%#6AB7DD
Less saturated −25%#98A7AF

Channel breakdown

R129
G175
B198
Red129 (50.6%)
Green175 (68.6%)
Blue198 (77.6%)
Hue200°
Saturation (HSL)37.7%
Lightness64.12%
Dominant channelBlue
Hex per channelR 81 · G AF · B C6

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Every value on this page was computed from “81afc6” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.