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Recognised as Colour

#37EFEC

  • #37EFEC
  • Cyan
  • Light
  • Nearest: Aqua

#37EFEC is a cyan with RGB values 55, 239, 236 and HSL 179°, 85%, 58%. It is a light colour, so black text on it reaches 14.7:1 contrast (AAA for normal text). The nearest named colour is Aqua.

Colour values

#37EFEC#37EFEC
HEX#37EFEC
RGBrgb(55, 239, 236)
RGB (0–1)0.2157, 0.9373, 0.9255
RGB percentages21.6%, 93.7%, 92.5%
HSLhsl(179, 85.2%, 57.6%)
HSV / HSBhsv(179, 77%, 93.7%)
CMYK77%, 0%, 1.3%, 6.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,665,900
CSS custom property--colour: #37EFEC;

Brightness & contrast

Relative luminance0.68601WCAG 2.x, 0 is black and 1 is white
Perceived brightness202 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 14.72:1
Contrast with white1.43:1WCAG normal text: Fail
Contrast with black14.72:1WCAG normal text: AAA
Greyscale equivalent#C8C8C8
Inverted#C81013

Colour vision & accessibility

Protanopia#E0E3ECno red cones; affects about 1% of men; ΔE 45.3 from the original
Deuteranopia#C6D0EDno green cones; the most common form, about 1% of men; ΔE 46.7 from the original
Tritanopia#00F6EEno blue cones; rare, and affects men and women equally; ΔE 5.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text1.43:1WCAG large text: Fail
Contrast with black, large text14.72:1WCAG large text: AAA

Named colours

Nearest named CSS colourAqua (#00FFFF)ΔE 6.91, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#EF373A
Analogous#37EF90, #3796EF
Triadic#EC37EF, #EFEC37
Split complementary#EF3796, #EF9037
Tetradic#9037EF, #EF373A, #96EF37

Tints, shades & saturation

Lighter +40%#F4FEFE
Lighter +30%#C5FAF9
Lighter +20%#95F7F5
Lighter +10%#66F3F0
Darker −10%#12E1DE
Darker −20%#0EB2AF
Darker −30%#0A8381
Darker −40%#075352
More saturated +25%#27FFFB
Less saturated −25%#52D4D2

Channel breakdown

R55
G239
B236
Red55 (21.6%)
Green239 (93.7%)
Blue236 (92.5%)
Hue179.02°
Saturation (HSL)85.19%
Lightness57.65%
Dominant channelGreen
Hex per channelR 37 · G EF · B EC

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Every value on this page was computed from “37efec” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.