Colour

#18F9FF

#18F9FF
Cyan
Light
Nearest: Aqua

#18F9FF is a cyan with RGB values 24, 249, 255 and HSL 182°, 100%, 55%. It is a light colour, so black text on it reaches 16:1 contrast (AAA for normal text). The nearest named colour is Aqua.

Colour values

#18F9FF#18F9FF

HEX#18F9FF

RGBrgb(24, 249, 255)

RGB (0–1)0.0941, 0.9765, 1

RGB percentages9.4%, 97.6%, 100%

HSLhsl(181.6, 100%, 54.7%)

HSV / HSBhsv(181.6, 90.6%, 100%)

CMYK90.6%, 2.4%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer1,636,863

CSS custom property--colour: #18F9FF;

Brightness & contrast

Relative luminance0.75166WCAG 2.x, 0 is black and 1 is white

Perceived brightness209.7 of 255ITU-R BT.601 weighting

Light or darkLight

Best text colour on this backgroundBlackcontrast 16.03:1

Contrast with white1.31:1WCAG normal text: Fail

Contrast with black16.03:1WCAG normal text: AAA

Greyscale equivalent#CACACA

Inverted#E70600

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#E6EDFFno red cones; affects about 1% of men; ΔE 46.7 from the original

Deuteranopia#CAD8FFno green cones; the most common form, about 1% of men; ΔE 48.5 from the original

Tritanopia#00FFFAno blue cones; rare, and affects men and women equally; ΔE 6.9 from the original

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

Contrast with white, large text1.31:1WCAG large text: Fail

Contrast with black, large text16.03:1WCAG large text: AAA

Named colours

Aqua · ΔE 4.4 Cyan · ΔE 4.4 Turquoise · ΔE 15 Dark turquoise · ΔE 15.3 Medium turquoise · ΔE 16.8 Aquamarine · ΔE 26.4

Nearest named CSS colourAqua (#00FFFF)ΔE 4.35, a close match

Hue familycyan

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#FF1E18

Analogous#18FF92, #1885FF

Triadic#FF18F9, #F9FF18

Split complementary#FF1885, #FF9218

Tetradic#9218FF, #FF1E18, #85FF18

Tints, shades & saturation

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

Lighter +40%#E4FEFF

Lighter +30%#B1FDFF

Lighter +20%#7EFCFF

Lighter +10%#4BFAFF

Darker −10%#00DEE4

Darker −20%#00ACB1

Darker −30%#007B7E

Darker −40%#00494B

More saturated +25%#18F9FF

Less saturated −25%#35DEE2

Channel breakdown

R24

G249

B255

Red24 (9.4%)

Green249 (97.6%)

Blue255 (100%)

Hue181.56°

Saturation (HSL)100%

Lightness54.71%

Dominant channelBlue

Hex per channelR 18 · G F9 · B FF

Keep nerding

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

#18F9FF

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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