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Colour

#17C5DC

  • #17C5DC
  • Cyan
  • Dark
  • Nearest: Dark turquoise

#17C5DC is a cyan with RGB values 23, 197, 220 and HSL 187°, 81%, 48%. It is a dark colour, so black text on it reaches 10.1:1 contrast (AAA for normal text). The nearest named colour is Dark turquoise.

Colour values

#17C5DC#17C5DC
HEX#17C5DC
RGBrgb(23, 197, 220)
RGB (0–1)0.0902, 0.7725, 0.8627
RGB percentages9%, 77.3%, 86.3%
HSLhsl(187, 81.1%, 47.6%)
HSV / HSBhsv(187, 89.5%, 86.3%)
CMYK89.5%, 10.5%, 0%, 13.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,557,980
CSS custom property--colour: #17C5DC;

Brightness & contrast

Relative luminance0.45282WCAG 2.x, 0 is black and 1 is white
Perceived brightness168.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 10.06:1
Contrast with white2.09:1WCAG normal text: Fail
Contrast with black10.06:1WCAG normal text: AAA
Greyscale equivalent#A2A2A2
Inverted#E83A23

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#B1BDDDno red cones; affects about 1% of men; ΔE 34.9 from the original
Deuteranopia#99ACDCno green cones; the most common form, about 1% of men; ΔE 36.4 from the original
Tritanopia#00CFCCno blue cones; rare, and affects men and women equally; ΔE 16.1 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.09:1WCAG large text: Fail
Contrast with black, large text10.06:1WCAG large text: AAA

Named colours

Dark turquoise · ΔE 12.7Medium turquoise · ΔE 16Sky blue · ΔE 18Light seagreen · ΔE 18.9Light skyblue · ΔE 22.6Cadetblue · ΔE 22.9
Nearest named CSS colourDark turquoise (#00CED1)ΔE 12.68, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#DC2E17
Analogous#17DC91, #1762DC
Triadic#DC17C5, #C5DC17
Split complementary#DC1762, #DC9117
Tetradic#9117DC, #DC2E17, #62DC17

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C6F3F9
Lighter +30%#98E9F4
Lighter +20%#6AE0EF
Lighter +10%#3BD6EB
Darker −10%#129CAE
Darker −20%#0D7280
Darker −30%#094951
Darker −40%#042023
More saturated +25%#00D7F3
Less saturated −25%#35AEBE

Channel breakdown

R23
G197
B220
Red23 (9%)
Green197 (77.3%)
Blue220 (86.3%)
Hue187.01°
Saturation (HSL)81.07%
Lightness47.65%
Dominant channelBlue
Hex per channelR 17 · G C5 · B DC

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Every value on this page was computed from “17c5dc” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.