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Recognised as Colour

#81B8BA

  • #81B8BA
  • Cyan
  • Dark
  • Nearest: Cadetblue

#81B8BA is a cyan with RGB values 129, 184, 186 and HSL 182°, 29%, 62%. It is a dark colour, so black text on it reaches 9.5:1 contrast (AAA for normal text). The nearest named colour is Cadetblue.

Colour values

#81B8BA#81B8BA
HEX#81B8BA
RGBrgb(129, 184, 186)
RGB (0–1)0.5059, 0.7216, 0.7294
RGB percentages50.6%, 72.2%, 72.9%
HSLhsl(182.1, 29.2%, 61.8%)
HSV / HSBhsv(182.1, 30.6%, 72.9%)
CMYK30.6%, 1.1%, 0%, 27.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer8,501,434
CSS custom property--colour: #81B8BA;

Brightness & contrast

Relative luminance0.42493WCAG 2.x, 0 is black and 1 is white
Perceived brightness169.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 9.5:1
Contrast with white2.21:1WCAG normal text: Fail
Contrast with black9.5:1WCAG normal text: AAA
Greyscale equivalent#ACACAC
Inverted#7E4745

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#B1B3BAno red cones; affects about 1% of men; ΔE 18.3 from the original
Deuteranopia#A6ABBAno green cones; the most common form, about 1% of men; ΔE 18.7 from the original
Tritanopia#6CBCB8no blue cones; rare, and affects men and women equally; ΔE 8.2 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.21:1WCAG large text: Fail
Contrast with black, large text9.5:1WCAG large text: AAA

Named colours

Cadetblue · ΔE 10.3Light blue · ΔE 14.9Powder blue · ΔE 15.3Sky blue · ΔE 16.8Dark grey · ΔE 18.7Pale turquoise · ΔE 19
Nearest named CSS colourCadetblue (#5F9EA0)ΔE 10.35, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#BA8381
Analogous#81BAA0, #819BBA
Triadic#BA81B8, #B8BA81
Split complementary#BA819B, #BAA081
Tetradic#A081BA, #BA8381, #9BBA81

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#E4F0F0
Lighter +20%#C3DDDE
Lighter +10%#A2CBCC
Darker −10%#60A5A8
Darker −20%#4B878A
Darker −30%#396769
Darker −40%#274748
More saturated +25%#69CFD2
Less saturated −25%#99A1A2

Channel breakdown

R129
G184
B186
Red129 (50.6%)
Green184 (72.2%)
Blue186 (72.9%)
Hue182.11°
Saturation (HSL)29.23%
Lightness61.76%
Dominant channelBlue
Hex per channelR 81 · G B8 · B BA

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Every value on this page was computed from “81b8ba” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.