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Recognised as Colour

#81FDE1

  • #81FDE1
  • Cyan
  • Light
  • Nearest: Aquamarine

#81FDE1 is a cyan with RGB values 129, 253, 225 and HSL 166°, 97%, 75%. It is a light colour, so black text on it reaches 17.1:1 contrast (AAA for normal text). The nearest named colour is Aquamarine.

Colour values

#81FDE1#81FDE1
HEX#81FDE1
RGBrgb(129, 253, 225)
RGB (0–1)0.5059, 0.9922, 0.8824
RGB percentages50.6%, 99.2%, 88.2%
HSLhsl(166.5, 96.9%, 74.9%)
HSV / HSBhsv(166.5, 49%, 99.2%)
CMYK49%, 0%, 11.1%, 0.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer8,519,137
CSS custom property--colour: #81FDE1;

Brightness & contrast

Relative luminance0.80354WCAG 2.x, 0 is black and 1 is white
Perceived brightness219.8 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 17.07:1
Contrast with white1.23:1WCAG normal text: Fail
Contrast with black17.07:1WCAG normal text: AAA
Greyscale equivalent#E1E1E1
Inverted#7E021E

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#F5F0E0no red cones; affects about 1% of men; ΔE 40.8 from the original
Deuteranopia#E1E2E3no green cones; the most common form, about 1% of men; ΔE 41.3 from the original
Tritanopia#48FFF5no blue cones; rare, and affects men and women equally; ΔE 12.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text1.23:1WCAG large text: Fail
Contrast with black, large text17.07:1WCAG large text: AAA

Named colours

Aquamarine · ΔE 8.2Turquoise · ΔE 12.9Medium aquamarine · ΔE 17.3Aqua · ΔE 18.2Cyan · ΔE 18.2Medium turquoise · ΔE 19
Nearest named CSS colourAquamarine (#7FFFD4)ΔE 8.16, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FD819D
Analogous#81FDA3, #81DBFD
Triadic#E181FD, #FDE181
Split complementary#FD81DB, #FDA381
Tetradic#A381FD, #FD819D, #DBFD81

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#FFFFFF
Lighter +20%#E5FFF9
Lighter +10%#B3FEED
Darker −10%#4FFCD5
Darker −20%#1DFBC9
Darker −30%#04E1AF
Darker −40%#03AF88
More saturated +25%#7FFFE2
Less saturated −25%#91EDD8

Channel breakdown

R129
G253
B225
Red129 (50.6%)
Green253 (99.2%)
Blue225 (88.2%)
Hue166.45°
Saturation (HSL)96.88%
Lightness74.9%
Dominant channelGreen
Hex per channelR 81 · G FD · B E1

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Every value on this page was computed from “81fde1” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.