Nerdulator> put something in

Colour

#66FFCF

  • #66FFCF
  • Cyan
  • Light
  • Nearest: Aquamarine

#66FFCF is a cyan with RGB values 102, 255, 207 and HSL 161°, 100%, 70%. It is a light colour, so black text on it reaches 16.8:1 contrast (AAA for normal text). The nearest named colour is Aquamarine.

Colour values

#66FFCF#66FFCF
HEX#66FFCF
RGBrgb(102, 255, 207)
RGB (0–1)0.4, 1, 0.8118
RGB percentages40%, 100%, 81.2%
HSLhsl(161.2, 100%, 70%)
HSV / HSBhsv(161.2, 60%, 100%)
CMYK60%, 0%, 18.8%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,750,159
CSS custom property--colour: #66FFCF;

Brightness & contrast

Relative luminance0.7885WCAG 2.x, 0 is black and 1 is white
Perceived brightness214.9 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 16.77:1
Contrast with white1.25:1WCAG normal text: Fail
Contrast with black16.77:1WCAG normal text: AAA
Greyscale equivalent#DBDBDB
Inverted#990030

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#F9EFCDno red cones; affects about 1% of men; ΔE 50.2 from the original
Deuteranopia#E3DFD2no green cones; the most common form, about 1% of men; ΔE 51 from the original
Tritanopia#00FFF1no blue cones; rare, and affects men and women equally; ΔE 18.4 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 text16.77:1WCAG large text: AAA

Named colours

Aquamarine · ΔE 6.3Turquoise · ΔE 19.5Medium aquamarine · ΔE 20.6Aqua · ΔE 25.3Cyan · ΔE 25.3Light green · ΔE 26.9
Nearest named CSS colourAquamarine (#7FFFD4)ΔE 6.33, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FF6696
Analogous#66FF83, #66E2FF
Triadic#CF66FF, #FFCF66
Split complementary#FF66E2, #FF8366
Tetradic#8366FF, #FF6696, #E2FF66

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#FFFFFF
Lighter +20%#CCFFEF
Lighter +10%#99FFDF
Darker −10%#33FFBF
Darker −20%#00FFAF
Darker −30%#00CC8C
Darker −40%#009969
More saturated +25%#66FFCF
Less saturated −25%#79ECC8

Channel breakdown

R102
G255
B207
Red102 (40%)
Green255 (100%)
Blue207 (81.2%)
Hue161.18°
Saturation (HSL)100%
Lightness70%
Dominant channelGreen
Hex per channelR 66 · G FF · B CF

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

Nerdulate something else

Nothing in mind? Surprise me · today’s page

Every value on this page was computed from “66ffcf” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.