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Recognised as Colour

#66EDE7

  • #66EDE7
  • Cyan
  • Light
  • Nearest: Turquoise

#66EDE7 is a cyan with RGB values 102, 237, 231 and HSL 177°, 79%, 66%. It is a light colour, so black text on it reaches 14.8:1 contrast (AAA for normal text). The nearest named colour is Turquoise.

Colour values

#66EDE7#66EDE7
HEX#66EDE7
RGBrgb(102, 237, 231)
RGB (0–1)0.4, 0.9294, 0.9059
RGB percentages40%, 92.9%, 90.6%
HSLhsl(177.3, 78.9%, 66.5%)
HSV / HSBhsv(177.3, 57%, 92.9%)
CMYK57%, 0%, 2.5%, 7.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,745,575
CSS custom property--colour: #66EDE7;

Brightness & contrast

Relative luminance0.69163WCAG 2.x, 0 is black and 1 is white
Perceived brightness205.3 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 14.83:1
Contrast with white1.42:1WCAG normal text: Fail
Contrast with black14.83:1WCAG normal text: AAA
Greyscale equivalent#D0D0D0
Inverted#991218

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#E0E2E7no red cones; affects about 1% of men; ΔE 38.8 from the original
Deuteranopia#CBD2E8no green cones; the most common form, about 1% of men; ΔE 40.2 from the original
Tritanopia#00F3EBno blue cones; rare, and affects men and women equally; ΔE 10.7 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text1.42:1WCAG large text: Fail
Contrast with black, large text14.83:1WCAG large text: AAA

Named colours

Turquoise · ΔE 9.1Medium turquoise · ΔE 9.7Aqua · ΔE 12.5Cyan · ΔE 12.5Dark turquoise · ΔE 12.6Pale turquoise · ΔE 18.8
Nearest named CSS colourTurquoise (#40E0D0)ΔE 9.07, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#ED666C
Analogous#66EDA4, #66AFED
Triadic#E766ED, #EDE766
Split complementary#ED66AF, #EDA466
Tetradic#A466ED, #ED666C, #AFED66

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#EFFDFC
Lighter +20%#C1F8F5
Lighter +10%#94F2EE
Darker −10%#38E8E0
Darker −20%#19D4CC
Darker −30%#14A6A0
Darker −40%#0E7974
More saturated +25%#54FFF7
Less saturated −25%#7BD8D4

Channel breakdown

R102
G237
B231
Red102 (40%)
Green237 (92.9%)
Blue231 (90.6%)
Hue177.33°
Saturation (HSL)78.95%
Lightness66.47%
Dominant channelGreen
Hex per channelR 66 · G ED · B E7

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Every value on this page was computed from “66ede7” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.