Colour

#66EECC

#66EECC
Cyan
Light
Nearest: Aquamarine

#66EECC is a cyan with RGB values 102, 238, 204 and HSL 165°, 80%, 67%. It is a light colour, so black text on it reaches 14.7:1 contrast (AAA for normal text). The nearest named colour is Aquamarine.

Colour values

#66EECC#66EECC

HEX#66EECC

HEX (short)#6EC

RGBrgb(102, 238, 204)

RGB (0–1)0.4, 0.9333, 0.8

RGB percentages40%, 93.3%, 80%

HSLhsl(165, 80%, 66.7%)

HSV / HSBhsv(165, 57.1%, 93.3%)

CMYK57.1%, 0%, 14.3%, 6.7%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer6,745,804

CSS custom property--colour: #66EECC;

Brightness & contrast

Relative luminance0.68333WCAG 2.x, 0 is black and 1 is white

Perceived brightness202.7 of 255ITU-R BT.601 weighting

Light or darkLight

Best text colour on this backgroundBlackcontrast 14.67:1

Contrast with white1.43:1WCAG normal text: Fail

Contrast with black14.67:1WCAG normal text: AAA

Greyscale equivalent#CFCFCF

Inverted#991133

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#E7E0CAno red cones; affects about 1% of men; ΔE 44.4 from the original

Deuteranopia#D2D1CEno green cones; the most common form, about 1% of men; ΔE 45.2 from the original

Tritanopia#00F0E4no blue cones; rare, and affects men and women equally; ΔE 13.7 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text1.43:1WCAG large text: Fail

Contrast with black, large text14.67:1WCAG large text: AAA

Named colours

Aquamarine · ΔE 7.3 Turquoise · ΔE 10.6 Medium aquamarine · ΔE 12.8 Medium turquoise · ΔE 18.3 Aqua · ΔE 20.3 Cyan · ΔE 20.3

Nearest named CSS colourAquamarine (#7FFFD4)ΔE 7.32, clearly different but related

Hue familycyan

CSS keyword usableNo exact keyword

Colour harmonies

base +30°+90°+120°+180°+210°+240°+270°+330°

Complementary#EE6688

Analogous#66EE88, #66CCEE

Triadic#CC66EE, #EECC66

Split complementary#EE66CC, #EE8866

Tetradic#8866EE, #EE6688, #CCEE66

Tints, shades & saturation

+40%+30%+20%+10%base -10%-20%-30%-40%

Lighter +40%#FFFFFF

Lighter +30%#F0FDFA

Lighter +20%#C2F8EB

Lighter +10%#94F3DB

Darker −10%#38E9BD

Darker −20%#18D6A7

Darker −30%#13A883

Darker −40%#0E7A5F

More saturated +25%#55FFD5

Less saturated −25%#7BD9C1

Channel breakdown

R102

G238

B204

Red102 (40%)

Green238 (93.3%)

Blue204 (80%)

Hue165°

Saturation (HSL)80%

Lightness66.67%

Dominant channelGreen

Hex per channelR 66 · G EE · B CC

Keep nerding

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#66EECC

Colour values

Brightness & contrast

Colour vision & accessibility

Named colours

Colour harmonies

Tints, shades & saturation

Channel breakdown

Keep nerding

Harmonies

Lighter and darker

Similar named colours

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