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Recognised as Colour

#81FFF4

  • #81FFF4
  • Cyan
  • Light
  • Nearest: Turquoise

#81FFF4 is a cyan with RGB values 129, 255, 244 and HSL 175°, 100%, 75%. It is a light colour, so black text on it reaches 17.5:1 contrast (AAA for normal text). The nearest named colour is Turquoise.

Colour values

#81FFF4#81FFF4
HEX#81FFF4
RGBrgb(129, 255, 244)
RGB (0–1)0.5059, 1, 0.9569
RGB percentages50.6%, 100%, 95.7%
HSLhsl(174.8, 100%, 75.3%)
HSV / HSBhsv(174.8, 49.4%, 100%)
CMYK49.4%, 0%, 4.3%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer8,519,668
CSS custom property--colour: #81FFF4;

Brightness & contrast

Relative luminance0.82719WCAG 2.x, 0 is black and 1 is white
Perceived brightness223.5 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 17.54:1
Contrast with white1.2:1WCAG normal text: Fail
Contrast with black17.54:1WCAG normal text: AAA
Greyscale equivalent#E3E3E3
Inverted#7E000B

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#F4F4F4no red cones; affects about 1% of men; ΔE 38.3 from the original
Deuteranopia#DFE4F5no green cones; the most common form, about 1% of men; ΔE 39.5 from the original
Tritanopia#36FFFBno blue cones; rare, and affects men and women equally; ΔE 11.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text1.2:1WCAG large text: Fail
Contrast with black, large text17.54:1WCAG large text: AAA

Named colours

Turquoise · ΔE 13.3Aqua · ΔE 13.5Cyan · ΔE 13.5Medium turquoise · ΔE 16.3Aquamarine · ΔE 17.2Pale turquoise · ΔE 18.3
Nearest named CSS colourTurquoise (#40E0D0)ΔE 13.33, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FF818C
Analogous#81FFB5, #81CBFF
Triadic#F481FF, #FFF481
Split complementary#FF81CB, #FFB581
Tetradic#B581FF, #FF818C, #CBFF81

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#FFFFFF
Lighter +20%#E7FFFD
Lighter +10%#B4FFF8
Darker −10%#4EFFF0
Darker −20%#1BFFEB
Darker −30%#00E7D3
Darker −40%#00B4A4
More saturated +25%#81FFF4
Less saturated −25%#91EFE7

Channel breakdown

R129
G255
B244
Red129 (50.6%)
Green255 (100%)
Blue244 (95.7%)
Hue174.76°
Saturation (HSL)100%
Lightness75.29%
Dominant channelGreen
Hex per channelR 81 · G FF · B F4

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Every value on this page was computed from “81fff4” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.