Colour

#40FFDF

#40FFDF
Cyan
Light
Nearest: Aquamarine

#40FFDF is a cyan with RGB values 64, 255, 223 and HSL 170°, 100%, 63%. It is a light colour, so black text on it reaches 16.6:1 contrast (AAA for normal text). The nearest named colour is Aquamarine.

Colour values

#40FFDF#40FFDF

HEX#40FFDF

RGBrgb(64, 255, 223)

RGB (0–1)0.251, 1, 0.8745

RGB percentages25.1%, 100%, 87.5%

HSLhsl(169.9, 100%, 62.5%)

HSV / HSBhsv(169.9, 74.9%, 100%)

CMYK74.9%, 0%, 12.5%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer4,259,807

CSS custom property--colour: #40FFDF;

Brightness & contrast

Relative luminance0.77938WCAG 2.x, 0 is black and 1 is white

Perceived brightness212.3 of 255ITU-R BT.601 weighting

Light or darkLight

Best text colour on this backgroundBlackcontrast 16.59:1

Contrast with white1.27:1WCAG normal text: Fail

Contrast with black16.59:1WCAG normal text: AAA

Greyscale equivalent#D4D4D4

Inverted#BF0020

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#F5EFDEno red cones; affects about 1% of men; ΔE 53.1 from the original

Deuteranopia#DBDDE2no green cones; the most common form, about 1% of men; ΔE 53.8 from the original

Tritanopia#00FFF5no blue cones; rare, and affects men and women equally; ΔE 11.6 from the original

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

Contrast with white, large text1.27:1WCAG large text: Fail

Contrast with black, large text16.59:1WCAG large text: AAA

Named colours

Aquamarine · ΔE 11.1 Turquoise · ΔE 14.5 Aqua · ΔE 16.9 Cyan · ΔE 16.9 Medium aquamarine · ΔE 22.2 Medium turquoise · ΔE 23.5

Nearest named CSS colourAquamarine (#7FFFD4)ΔE 11.06, a distinctly different colour

Hue familycyan

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#FF4060

Analogous#40FF80, #40BFFF

Triadic#DF40FF, #FFDF40

Split complementary#FF40C0, #FF8040

Tetradic#7F40FF, #FF4060, #BFFF40

Tints, shades & saturation

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

Lighter +40%#FFFFFF

Lighter +30%#D9FFF9

Lighter +20%#A6FFF0

Lighter +10%#73FFE8

Darker −10%#0DFFD6

Darker −20%#00D9B5

Darker −30%#00A68A

Darker −40%#007360

More saturated +25%#40FFDF

Less saturated −25%#58E7CF

Channel breakdown

R64

G255

B223

Red64 (25.1%)

Green255 (100%)

Blue223 (87.5%)

Hue169.95°

Saturation (HSL)100%

Lightness62.55%

Dominant channelGreen

Hex per channelR 40 · G FF · B DF

Keep nerding

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#40FFDF

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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