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Recognised as Colour

#27D3EF

  • #27D3EF
  • Cyan
  • Light
  • Nearest: Dark turquoise

#27D3EF is a cyan with RGB values 39, 211, 239 and HSL 188°, 86%, 55%. It is a light colour, so black text on it reaches 11.7:1 contrast (AAA for normal text). The nearest named colour is Dark turquoise.

Colour values

#27D3EF#27D3EF
HEX#27D3EF
RGBrgb(39, 211, 239)
RGB (0–1)0.1529, 0.8275, 0.9373
RGB percentages15.3%, 82.7%, 93.7%
HSLhsl(188.4, 86.2%, 54.5%)
HSV / HSBhsv(188.4, 83.7%, 93.7%)
CMYK83.7%, 11.7%, 0%, 6.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,610,159
CSS custom property--colour: #27D3EF;

Brightness & contrast

Relative luminance0.53252WCAG 2.x, 0 is black and 1 is white
Perceived brightness181.9 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 11.65:1
Contrast with white1.8:1WCAG normal text: Fail
Contrast with black11.65:1WCAG normal text: AAA
Greyscale equivalent#B0B0B0
Inverted#D82C10

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#BECBF1no red cones; affects about 1% of men; ΔE 35.6 from the original
Deuteranopia#A4B9EFno green cones; the most common form, about 1% of men; ΔE 36.9 from the original
Tritanopia#00DEDCno blue cones; rare, and affects men and women equally; ΔE 18.7 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text1.8:1WCAG large text: Fail
Contrast with black, large text11.65:1WCAG large text: AAA

Named colours

Dark turquoise · ΔE 15Sky blue · ΔE 17.2Medium turquoise · ΔE 18.1Light skyblue · ΔE 21Deep skyblue · ΔE 22.6Light seagreen · ΔE 23.5
Nearest named CSS colourDark turquoise (#00CED1)ΔE 14.95, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#EF4327
Analogous#27EFA7, #276FEF
Triadic#EF27D3, #D3EF27
Split complementary#EF276F, #EFA727
Tetradic#A727EF, #EF4327, #6FEF27

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#E5FAFD
Lighter +30%#B5F0FA
Lighter +20%#86E6F6
Lighter +10%#56DDF3
Darker −10%#10B8D3
Darker −20%#0C8FA4
Darker −30%#096574
Darker −40%#053C45
More saturated +25%#17DFFF
Less saturated −25%#44BED2

Channel breakdown

R39
G211
B239
Red39 (15.3%)
Green211 (82.7%)
Blue239 (93.7%)
Hue188.4°
Saturation (HSL)86.21%
Lightness54.51%
Dominant channelBlue
Hex per channelR 27 · G D3 · B EF

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Every value on this page was computed from “27d3ef” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.