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Colour

#42FFF4

  • #42FFF4
  • Cyan
  • Light
  • Nearest: Aqua

#42FFF4 is a cyan with RGB values 66, 255, 244 and HSL 177°, 100%, 63%. It is a light colour, so black text on it reaches 16.8:1 contrast (AAA for normal text). The nearest named colour is Aqua.

Colour values

#42FFF4#42FFF4
HEX#42FFF4
RGBrgb(66, 255, 244)
RGB (0–1)0.2588, 1, 0.9569
RGB percentages25.9%, 100%, 95.7%
HSLhsl(176.5, 100%, 62.9%)
HSV / HSBhsv(176.5, 74.1%, 100%)
CMYK74.1%, 0%, 4.3%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,390,900
CSS custom property--colour: #42FFF4;

Brightness & contrast

Relative luminance0.7921WCAG 2.x, 0 is black and 1 is white
Perceived brightness215.1 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 16.84:1
Contrast with white1.25:1WCAG normal text: Fail
Contrast with black16.84:1WCAG normal text: AAA
Greyscale equivalent#D6D6D6
Inverted#BD000B

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#F1F1F4no red cones; affects about 1% of men; ΔE 48.8 from the original
Deuteranopia#D6DEF6no green cones; the most common form, about 1% of men; ΔE 49.9 from the original
Tritanopia#00FFFBno blue cones; rare, and affects men and women equally; ΔE 4.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text1.25:1WCAG large text: Fail
Contrast with black, large text16.84:1WCAG large text: AAA

Named colours

Aqua · ΔE 6.1Cyan · ΔE 6.1Turquoise · ΔE 11.4Medium turquoise · ΔE 17.7Aquamarine · ΔE 17.9Dark turquoise · ΔE 18.6
Nearest named CSS colourAqua (#00FFFF)ΔE 6.1, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FF424D
Analogous#42FF96, #42ABFF
Triadic#F442FF, #FFF442
Split complementary#FF42AC, #FF9542
Tetradic#9542FF, #FF424D, #ABFF42

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#DBFFFD
Lighter +20%#A8FFFA
Lighter +10%#75FFF7
Darker −10%#0FFFF1
Darker −20%#00DBCE
Darker −30%#00A89E
Darker −40%#00756E
More saturated +25%#42FFF4
Less saturated −25%#5AE7DF

Channel breakdown

R66
G255
B244
Red66 (25.9%)
Green255 (100%)
Blue244 (95.7%)
Hue176.51°
Saturation (HSL)100%
Lightness62.94%
Dominant channelGreen
Hex per channelR 42 · G FF · B F4

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Every value on this page was computed from “42fff4” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.