Recognised as Colour

#18FDFF

#18FDFF
Cyan
Light
Nearest: Aqua

#18FDFF is a cyan with RGB values 24, 253, 255 and HSL 181°, 100%, 55%. It is a light colour, so black text on it reaches 16.5:1 contrast (AAA for normal text). The nearest named colour is Aqua.

Colour values

#18FDFF#18FDFF

HEX#18FDFF

RGBrgb(24, 253, 255)

RGB (0–1)0.0941, 0.9922, 1

RGB percentages9.4%, 99.2%, 100%

HSLhsl(180.5, 100%, 54.7%)

HSV / HSBhsv(180.5, 90.6%, 100%)

CMYK90.6%, 0.8%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer1,637,887

CSS custom property--colour: #18FDFF;

Brightness & contrast

Relative luminance0.77665WCAG 2.x, 0 is black and 1 is white

Perceived brightness212.5 of 255ITU-R BT.601 weighting

Light or darkLight

Best text colour on this backgroundBlackcontrast 16.53:1

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

Contrast with black16.53:1WCAG normal text: AAA

Greyscale equivalent#CCCCCC

Inverted#E70200

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#EBF0FFno red cones; affects about 1% of men; ΔE 48.5 from the original

Deuteranopia#CFDBFFno green cones; the most common form, about 1% of men; ΔE 50.1 from the original

Tritanopia#00FFFDno blue cones; rare, and affects men and women equally; ΔE 2.7 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 text16.53:1WCAG large text: AAA

Named colours

Aqua · ΔE 1.7 Cyan · ΔE 1.7 Turquoise · ΔE 14.5 Dark turquoise · ΔE 16.7 Medium turquoise · ΔE 17.8 Aquamarine · ΔE 24.6

Nearest named CSS colourAqua (#00FFFF)ΔE 1.69, below the just-noticeable difference

Hue familycyan

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#FF1A18

Analogous#18FF8E, #1889FF

Triadic#FF18FD, #FDFF18

Split complementary#FF1889, #FF8D18

Tetradic#8E18FF, #FF1A18, #8AFF18

Tints, shades & saturation

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

Lighter +40%#E4FFFF

Lighter +30%#B1FEFF

Lighter +20%#7EFEFF

Lighter +10%#4BFDFF

Darker −10%#00E2E4

Darker −20%#00AFB1

Darker −30%#007D7E

Darker −40%#004A4B

More saturated +25%#18FDFF

Less saturated −25%#35E1E2

Channel breakdown

R24

G253

B255

Red24 (9.4%)

Green253 (99.2%)

Blue255 (100%)

Hue180.52°

Saturation (HSL)100%

Lightness54.71%

Dominant channelBlue

Hex per channelR 18 · G FD · B FF

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

#18FDFF

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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