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Recognised as Colour

#66E6EA

  • #66E6EA
  • Cyan
  • Light
  • Nearest: Medium turquoise

#66E6EA is a cyan with RGB values 102, 230, 234 and HSL 182°, 76%, 66%. It is a light colour, so black text on it reaches 14.1:1 contrast (AAA for normal text). The nearest named colour is Medium turquoise.

Colour values

#66E6EA#66E6EA
HEX#66E6EA
RGBrgb(102, 230, 234)
RGB (0–1)0.4, 0.902, 0.9176
RGB percentages40%, 90.2%, 91.8%
HSLhsl(181.8, 75.9%, 65.9%)
HSV / HSBhsv(181.8, 56.4%, 91.8%)
CMYK56.4%, 1.7%, 0%, 8.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,743,786
CSS custom property--colour: #66E6EA;

Brightness & contrast

Relative luminance0.65359WCAG 2.x, 0 is black and 1 is white
Perceived brightness201 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 14.07:1
Contrast with white1.49:1WCAG normal text: Fail
Contrast with black14.07:1WCAG normal text: AAA
Greyscale equivalent#CBCBCB
Inverted#991915

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#D8DCEBno red cones; affects about 1% of men; ΔE 36 from the original
Deuteranopia#C2CDEBno green cones; the most common form, about 1% of men; ΔE 36.6 from the original
Tritanopia#00EDE7no blue cones; rare, and affects men and women equally; ΔE 13.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text1.49:1WCAG large text: Fail
Contrast with black, large text14.07:1WCAG large text: AAA

Named colours

Medium turquoise · ΔE 9.5Dark turquoise · ΔE 11.2Turquoise · ΔE 13.7Aqua · ΔE 15.5Cyan · ΔE 15.5Pale turquoise · ΔE 16.6
Nearest named CSS colourMedium turquoise (#48D1CC)ΔE 9.5, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#EA6A66
Analogous#66EAAC, #66A4EA
Triadic#EA66E6, #E6EA66
Split complementary#EA66A4, #EAAC66
Tetradic#AC66EA, #EA6A66, #A4EA66

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#EDFCFC
Lighter +20%#C0F5F6
Lighter +10%#93EDF0
Darker −10%#39DFE4
Darker −20%#1CC8CE
Darker −30%#169DA1
Darker −40%#107174
More saturated +25%#51FAFF
Less saturated −25%#7CD2D4

Channel breakdown

R102
G230
B234
Red102 (40%)
Green230 (90.2%)
Blue234 (91.8%)
Hue181.82°
Saturation (HSL)75.86%
Lightness65.88%
Dominant channelBlue
Hex per channelR 66 · G E6 · B EA

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Every value on this page was computed from “66e6ea” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.