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Recognised as Colour

#12EFFF

  • #12EFFF
  • Cyan
  • Light
  • Nearest: Aqua

#12EFFF is a cyan with RGB values 18, 239, 255 and HSL 184°, 100%, 54%. It is a light colour, so black text on it reaches 14.8:1 contrast (AAA for normal text). The nearest named colour is Aqua.

Colour values

#12EFFF#12EFFF
HEX#12EFFF
RGBrgb(18, 239, 255)
RGB (0–1)0.0706, 0.9373, 1
RGB percentages7.1%, 93.7%, 100%
HSLhsl(184.1, 100%, 53.5%)
HSV / HSBhsv(184.1, 92.9%, 100%)
CMYK92.9%, 6.3%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,241,087
CSS custom property--colour: #12EFFF;

Brightness & contrast

Relative luminance0.69082WCAG 2.x, 0 is black and 1 is white
Perceived brightness202.6 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 14.82:1
Contrast with white1.42:1WCAG normal text: Fail
Contrast with black14.82:1WCAG normal text: AAA
Greyscale equivalent#C1C1C1
Inverted#ED1000

Colour vision & accessibility

Protanopia#DAE4FFno red cones; affects about 1% of men; ΔE 43.3 from the original
Deuteranopia#BED0FFno green cones; the most common form, about 1% of men; ΔE 44.9 from the original
Tritanopia#00F9F4no blue cones; rare, and affects men and women equally; ΔE 12.7 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text1.42:1WCAG large text: Fail
Contrast with black, large text14.82:1WCAG large text: AAA

Named colours

Nearest named CSS colourAqua (#00FFFF)ΔE 11.12, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#FF2212
Analogous#12FF99, #1278FF
Triadic#FF12EF, #EFFF12
Split complementary#FF1278, #FF9912
Tetradic#9912FF, #FF2212, #78FF12

Tints, shades & saturation

Lighter +40%#DEFDFF
Lighter +30%#ABF9FF
Lighter +20%#78F6FF
Lighter +10%#45F2FF
Darker −10%#00CFDE
Darker −20%#009FAB
Darker −30%#007078
Darker −40%#004045
More saturated +25%#12EFFF
Less saturated −25%#30D5E1

Channel breakdown

R18
G239
B255
Red18 (7.1%)
Green239 (93.7%)
Blue255 (100%)
Hue184.05°
Saturation (HSL)100%
Lightness53.53%
Dominant channelBlue
Hex per channelR 12 · G EF · B FF

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Every value on this page was computed from “12efff” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.