Recognised as Colour

#17FFFF

#17FFFF
Cyan
Light
Nearest: Aqua

#17FFFF is a cyan with RGB values 23, 255, 255 and HSL 180°, 100%, 55%. It is a light colour, so black text on it reaches 16.8:1 contrast (AAA for normal text). The nearest named colour is Aqua.

Colour values

#17FFFF#17FFFF

HEX#17FFFF

RGBrgb(23, 255, 255)

RGB (0–1)0.0902, 1, 1

RGB percentages9%, 100%, 100%

HSLhsl(180, 100%, 54.5%)

HSV / HSBhsv(180, 91%, 100%)

CMYK91%, 0%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer1,572,863

CSS custom property--colour: #17FFFF;

Brightness & contrast

Relative luminance0.78922WCAG 2.x, 0 is black and 1 is white

Perceived brightness213.9 of 255ITU-R BT.601 weighting

Light or darkLight

Best text colour on this backgroundBlackcontrast 16.78:1

Contrast with white1.25:1WCAG normal text: Fail

Contrast with black16.78:1WCAG normal text: AAA

Greyscale equivalent#CECECE

Inverted#E80000

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#EDF2FFno red cones; affects about 1% of men; ΔE 49 from the original

Deuteranopia#D1DDFFno green cones; the most common form, about 1% of men; ΔE 50.6 from the original

Tritanopia#00FFFEno blue cones; rare, and affects men and women equally; ΔE 0.9 from the original

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

Contrast with white, large text1.25:1WCAG large text: Fail

Contrast with black, large text16.78:1WCAG large text: AAA

Named colours

Aqua · ΔE 0.6 Cyan · ΔE 0.6 Turquoise · ΔE 14.5 Dark turquoise · ΔE 17.6 Medium turquoise · ΔE 18.4 Aquamarine · ΔE 23.8

Nearest named CSS colourAqua (#00FFFF)ΔE 0.57, indistinguishable to the eye

Hue familycyan

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#FF1717

Analogous#17FF8B, #178BFF

Triadic#FF17FF, #FFFF17

Split complementary#FF178B, #FF8B17

Tetradic#8B17FF, #FF1717, #8BFF17

Tints, shades & saturation

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

Lighter +40%#E3FFFF

Lighter +30%#B0FFFF

Lighter +20%#7DFFFF

Lighter +10%#4AFFFF

Darker −10%#00E3E3

Darker −20%#00B0B0

Darker −30%#007D7D

Darker −40%#004A4A

More saturated +25%#17FFFF

Less saturated −25%#34E2E2

Channel breakdown

R23

G255

B255

Red23 (9%)

Green255 (100%)

Blue255 (100%)

Hue180°

Saturation (HSL)100%

Lightness54.51%

Dominant channelGreen and Blue

Hex per channelR 17 · G FF · B FF

Keep nerding

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

#17FFFF

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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