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Recognised as Colour

#42F2EF

  • #42F2EF
  • Cyan
  • Light
  • Nearest: Aqua

#42F2EF is a cyan with RGB values 66, 242, 239 and HSL 179°, 87%, 60%. It is a light colour, so black text on it reaches 15.2:1 contrast (AAA for normal text). The nearest named colour is Aqua.

Colour values

#42F2EF#42F2EF
HEX#42F2EF
RGBrgb(66, 242, 239)
RGB (0–1)0.2588, 0.949, 0.9373
RGB percentages25.9%, 94.9%, 93.7%
HSLhsl(179, 87.1%, 60.4%)
HSV / HSBhsv(179, 72.7%, 94.9%)
CMYK72.7%, 0%, 1.2%, 5.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,387,567
CSS custom property--colour: #42F2EF;

Brightness & contrast

Relative luminance0.70895WCAG 2.x, 0 is black and 1 is white
Perceived brightness205.4 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 15.18:1
Contrast with white1.38:1WCAG normal text: Fail
Contrast with black15.18:1WCAG normal text: AAA
Greyscale equivalent#CCCCCC
Inverted#BD0D10

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#E3E6EFno red cones; affects about 1% of men; ΔE 44.6 from the original
Deuteranopia#CAD3F0no green cones; the most common form, about 1% of men; ΔE 46.3 from the original
Tritanopia#00F9F1no blue cones; rare, and affects men and women equally; ΔE 6.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text1.38:1WCAG large text: Fail
Contrast with black, large text15.18:1WCAG large text: AAA

Named colours

Aqua · ΔE 6.7Cyan · ΔE 6.7Turquoise · ΔE 9.5Medium turquoise · ΔE 12.5Dark turquoise · ΔE 12.8Aquamarine · ΔE 21.6
Nearest named CSS colourAqua (#00FFFF)ΔE 6.66, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#F24245
Analogous#42F297, #429DF2
Triadic#EF42F2, #F2EF42
Split complementary#F2429D, #F29742
Tetradic#9742F2, #F24245, #9DF242

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#D1FCFB
Lighter +20%#A1F9F7
Lighter +10%#72F5F3
Darker −10%#12EFEB
Darker −20%#0DC1BE
Darker −30%#0A918F
Darker −40%#076160
More saturated +25%#35FFFC
Less saturated −25%#5BD9D7

Channel breakdown

R66
G242
B239
Red66 (25.9%)
Green242 (94.9%)
Blue239 (93.7%)
Hue178.98°
Saturation (HSL)87.13%
Lightness60.39%
Dominant channelGreen
Hex per channelR 42 · G F2 · B EF

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Every value on this page was computed from “42f2ef” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.