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Recognised as Colour

#17B6DA

  • #17B6DA
  • Cyan
  • Dark
  • Nearest: Deep skyblue

#17B6DA is a cyan with RGB values 23, 182, 218 and HSL 191°, 81%, 47%. It is a dark colour, so black text on it reaches 8.7:1 contrast (AAA for normal text). The nearest named colour is Deep skyblue.

Colour values

#17B6DA#17B6DA
HEX#17B6DA
RGBrgb(23, 182, 218)
RGB (0–1)0.0902, 0.7137, 0.8549
RGB percentages9%, 71.4%, 85.5%
HSLhsl(191.1, 80.9%, 47.3%)
HSV / HSBhsv(191.1, 89.4%, 85.5%)
CMYK89.4%, 16.5%, 0%, 14.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,554,138
CSS custom property--colour: #17B6DA;

Brightness & contrast

Relative luminance0.387WCAG 2.x, 0 is black and 1 is white
Perceived brightness158.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 8.74:1
Contrast with white2.4:1WCAG normal text: Fail
Contrast with black8.74:1WCAG normal text: AAA
Greyscale equivalent#979797
Inverted#E84925

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#A0B1DCno red cones; affects about 1% of men; ΔE 29.3 from the original
Deuteranopia#88A0DAno green cones; the most common form, about 1% of men; ΔE 31.1 from the original
Tritanopia#00C2C2no blue cones; rare, and affects men and women equally; ΔE 22.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.4:1WCAG large text: Fail
Contrast with black, large text8.74:1WCAG large text: AAA

Named colours

Deep skyblue · ΔE 16.2Sky blue · ΔE 16.5Light skyblue · ΔE 18Dark turquoise · ΔE 22.4Cadetblue · ΔE 23.1Medium turquoise · ΔE 25.2
Nearest named CSS colourDeep skyblue (#00BFFF)ΔE 16.17, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#DA3B17
Analogous#17DA9D, #1754DA
Triadic#DA17B6, #B6DA17
Split complementary#DA1754, #DA9D17
Tetradic#9D17DA, #DA3B17, #54DA17

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C4EFF9
Lighter +30%#96E3F4
Lighter +20%#68D6EF
Lighter +10%#3ACAEA
Darker −10%#128FAC
Darker −20%#0D697E
Darker −30%#084250
Darker −40%#041C21
More saturated +25%#00C5F1
Less saturated −25%#35A3BC

Channel breakdown

R23
G182
B218
Red23 (9%)
Green182 (71.4%)
Blue218 (85.5%)
Hue191.08°
Saturation (HSL)80.91%
Lightness47.25%
Dominant channelBlue
Hex per channelR 17 · G B6 · B DA

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Every value on this page was computed from “17b6da” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.