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Recognised as Colour

#19D9EF

  • #19D9EF
  • Cyan
  • Light
  • Nearest: Dark turquoise

#19D9EF is a cyan with RGB values 25, 217, 239 and HSL 186°, 87%, 52%. It is a light colour, so black text on it reaches 12.2:1 contrast (AAA for normal text). The nearest named colour is Dark turquoise.

Colour values

#19D9EF#19D9EF
HEX#19D9EF
RGBrgb(25, 217, 239)
RGB (0–1)0.098, 0.851, 0.9373
RGB percentages9.8%, 85.1%, 93.7%
HSLhsl(186.2, 87%, 51.8%)
HSV / HSBhsv(186.2, 89.5%, 93.7%)
CMYK89.5%, 9.2%, 0%, 6.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,694,191
CSS custom property--colour: #19D9EF;

Brightness & contrast

Relative luminance0.56064WCAG 2.x, 0 is black and 1 is white
Perceived brightness185.3 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 12.21:1
Contrast with white1.72:1WCAG normal text: Fail
Contrast with black12.21:1WCAG normal text: AAA
Greyscale equivalent#B2B2B2
Inverted#E62610

Colour vision & accessibility

Protanopia#C4D0F0no red cones; affects about 1% of men; ΔE 38.2 from the original
Deuteranopia#AABDEFno green cones; the most common form, about 1% of men; ΔE 40.1 from the original
Tritanopia#00E4E0no blue cones; rare, and affects men and women equally; ΔE 16 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text1.72:1WCAG large text: Fail
Contrast with black, large text12.21:1WCAG large text: AAA

Named colours

Nearest named CSS colourDark turquoise (#00CED1)ΔE 11.54, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#EF2F19
Analogous#19EF9A, #196EEF
Triadic#EF19D9, #D9EF19
Split complementary#EF196E, #EF9A19
Tetradic#9A19EF, #EF2F19, #6EEF19

Tints, shades & saturation

Lighter +40%#D8F9FC
Lighter +30%#A8F1F9
Lighter +20%#78E9F6
Lighter +10%#49E1F2
Darker −10%#0EB4C7
Darker −20%#0B8997
Darker −30%#075E68
Darker −40%#043338
More saturated +25%#09E6FF
Less saturated −25%#38C1D0

Channel breakdown

R25
G217
B239
Red25 (9.8%)
Green217 (85.1%)
Blue239 (93.7%)
Hue186.17°
Saturation (HSL)86.99%
Lightness51.76%
Dominant channelBlue
Hex per channelR 19 · G D9 · B EF

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Every value on this page was computed from “19d9ef” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.