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Recognised as Colour

#17E4FF

  • #17E4FF
  • Cyan
  • Light
  • Nearest: Dark turquoise

#17E4FF is a cyan with RGB values 23, 228, 255 and HSL 187°, 100%, 55%. It is a light colour, so black text on it reaches 13.6:1 contrast (AAA for normal text). The nearest named colour is Dark turquoise.

Colour values

#17E4FF#17E4FF
HEX#17E4FF
RGBrgb(23, 228, 255)
RGB (0–1)0.0902, 0.8941, 1
RGB percentages9%, 89.4%, 100%
HSLhsl(187, 100%, 54.5%)
HSV / HSBhsv(187, 91%, 100%)
CMYK91%, 10.6%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,565,951
CSS custom property--colour: #17E4FF;

Brightness & contrast

Relative luminance0.62889WCAG 2.x, 0 is black and 1 is white
Perceived brightness195.2 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 13.58:1
Contrast with white1.55:1WCAG normal text: Fail
Contrast with black13.58:1WCAG normal text: AAA
Greyscale equivalent#BABABA
Inverted#E81B00

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#CDDBFFno red cones; affects about 1% of men; ΔE 38.8 from the original
Deuteranopia#B2C7FFno green cones; the most common form, about 1% of men; ΔE 41.1 from the original
Tritanopia#00F0ECno blue cones; rare, and affects men and women equally; ΔE 18.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text1.55:1WCAG large text: Fail
Contrast with black, large text13.58:1WCAG large text: AAA

Named colours

Dark turquoise · ΔE 15.4Medium turquoise · ΔE 18.7Aqua · ΔE 18.9Cyan · ΔE 18.9Sky blue · ΔE 21.5Turquoise · ΔE 23.5
Nearest named CSS colourDark turquoise (#00CED1)ΔE 15.43, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FF3217
Analogous#17FFA6, #1770FF
Triadic#FF17E4, #E4FF17
Split complementary#FF1770, #FFA617
Tetradic#A617FF, #FF3217, #70FF17

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#E3FCFF
Lighter +30%#B0F6FF
Lighter +20%#7DF0FF
Lighter +10%#4AEAFF
Darker −10%#00C9E3
Darker −20%#009CB0
Darker −30%#006E7D
Darker −40%#00414A
More saturated +25%#17E4FF
Less saturated −25%#34CEE2

Channel breakdown

R23
G228
B255
Red23 (9%)
Green228 (89.4%)
Blue255 (100%)
Hue186.98°
Saturation (HSL)100%
Lightness54.51%
Dominant channelBlue
Hex per channelR 17 · G E4 · B FF

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Every value on this page was computed from “17e4ff” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.