Colour

#66FFC8

#66FFC8
Cyan
Light
Nearest: Aquamarine

#66FFC8 is a cyan with RGB values 102, 255, 200 and HSL 158°, 100%, 70%. It is a light colour, so black text on it reaches 16.7:1 contrast (AAA for normal text). The nearest named colour is Aquamarine.

Colour values

#66FFC8#66FFC8

HEX#66FFC8

RGBrgb(102, 255, 200)

RGB (0–1)0.4, 1, 0.7843

RGB percentages40%, 100%, 78.4%

HSLhsl(158.4, 100%, 70%)

HSV / HSBhsv(158.4, 60%, 100%)

CMYK60%, 0%, 21.6%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer6,750,152

CSS custom property--colour: #66FFC8;

Brightness & contrast

Relative luminance0.78515WCAG 2.x, 0 is black and 1 is white

Perceived brightness214.1 of 255ITU-R BT.601 weighting

Light or darkLight

Best text colour on this backgroundBlackcontrast 16.7:1

Contrast with white1.26:1WCAG normal text: Fail

Contrast with black16.7:1WCAG normal text: AAA

Greyscale equivalent#DBDBDB

Inverted#990037

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#FAEEC5no red cones; affects about 1% of men; ΔE 51.5 from the original

Deuteranopia#E4DFCCno green cones; the most common form, about 1% of men; ΔE 51.9 from the original

Tritanopia#00FFF0no blue cones; rare, and affects men and women equally; ΔE 21.3 from the original

Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning

Contrast with white, large text1.26:1WCAG large text: Fail

Contrast with black, large text16.7:1WCAG large text: AAA

Named colours

Aquamarine · ΔE 9 Medium aquamarine · ΔE 22.2 Turquoise · ΔE 22.7 Light green · ΔE 24.1 Pale green · ΔE 24.7 Medium spring green · ΔE 25.4

Nearest named CSS colourAquamarine (#7FFFD4)ΔE 9.03, clearly different but related

Hue familycyan

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#FF669D

Analogous#66FF7B, #66E9FF

Triadic#C866FF, #FFC866

Split complementary#FF66E9, #FF7C66

Tetradic#7C66FF, #FF669D, #E9FF66

Tints, shades & saturation

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

Lighter +40%#FFFFFF

Lighter +30%#FFFFFF

Lighter +20%#CCFFED

Lighter +10%#99FFDA

Darker −10%#33FFB6

Darker −20%#00FFA3

Darker −30%#00CC83

Darker −40%#009962

More saturated +25%#66FFC8

Less saturated −25%#79ECC3

Channel breakdown

R102

G255

B200

Red102 (40%)

Green255 (100%)

Blue200 (78.4%)

Hue158.43°

Saturation (HSL)100%

Lightness70%

Dominant channelGreen

Hex per channelR 66 · G FF · B C8

Keep nerding

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#66FFC8

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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