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Recognised as Colour

#3FDEEF

  • #3FDEEF
  • Cyan
  • Light
  • Nearest: Dark turquoise

#3FDEEF is a cyan with RGB values 63, 222, 239 and HSL 186°, 85%, 59%. It is a light colour, so black text on it reaches 12.9:1 contrast (AAA for normal text). The nearest named colour is Dark turquoise.

Colour values

#3FDEEF#3FDEEF
HEX#3FDEEF
RGBrgb(63, 222, 239)
RGB (0–1)0.2471, 0.8706, 0.9373
RGB percentages24.7%, 87.1%, 93.7%
HSLhsl(185.8, 84.6%, 59.2%)
HSV / HSBhsv(185.8, 73.6%, 93.7%)
CMYK73.6%, 7.1%, 0%, 6.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,185,839
CSS custom property--colour: #3FDEEF;

Brightness & contrast

Relative luminance0.59531WCAG 2.x, 0 is black and 1 is white
Perceived brightness191.4 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 12.91:1
Contrast with white1.63:1WCAG normal text: Fail
Contrast with black12.91:1WCAG normal text: AAA
Greyscale equivalent#BDBDBD
Inverted#C02110

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#CBD5F0no red cones; affects about 1% of men; ΔE 37.2 from the original
Deuteranopia#B3C3EFno green cones; the most common form, about 1% of men; ΔE 38.8 from the original
Tritanopia#00E8E3no blue cones; rare, and affects men and women equally; ΔE 15 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text1.63:1WCAG large text: Fail
Contrast with black, large text12.91:1WCAG large text: AAA

Named colours

Dark turquoise · ΔE 10.6Medium turquoise · ΔE 12.9Aqua · ΔE 17.6Cyan · ΔE 17.6Turquoise · ΔE 18.6Sky blue · ΔE 19.9
Nearest named CSS colourDark turquoise (#00CED1)ΔE 10.59, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#EF503F
Analogous#3FEFA8, #3F86EF
Triadic#EF3FDE, #DEEF3F
Split complementary#EF3F86, #EFA83F
Tetradic#A83FEF, #EF503F, #86EF3F

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FBFEFF
Lighter +30%#CCF6FB
Lighter +20%#9DEEF7
Lighter +10%#6EE6F3
Darker −10%#13D3E8
Darker −20%#0FA8B9
Darker −30%#0B7D8A
Darker −40%#08525A
More saturated +25%#2FEBFF
Less saturated −25%#59C9D5

Channel breakdown

R63
G222
B239
Red63 (24.7%)
Green222 (87.1%)
Blue239 (93.7%)
Hue185.8°
Saturation (HSL)84.62%
Lightness59.22%
Dominant channelBlue
Hex per channelR 3F · G DE · B EF

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Every value on this page was computed from “3fdeef” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.