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Colour

#42BFCF

  • #42BFCF
  • Cyan
  • Dark
  • Nearest: Dark turquoise

#42BFCF is a cyan with RGB values 66, 191, 207 and HSL 187°, 59%, 54%. It is a dark colour, so black text on it reaches 9.6:1 contrast (AAA for normal text). The nearest named colour is Dark turquoise.

Colour values

#42BFCF#42BFCF
HEX#42BFCF
RGBrgb(66, 191, 207)
RGB (0–1)0.2588, 0.749, 0.8118
RGB percentages25.9%, 74.9%, 81.2%
HSLhsl(186.8, 59.5%, 53.5%)
HSV / HSBhsv(186.8, 68.1%, 81.2%)
CMYK68.1%, 7.7%, 0%, 18.8%naive device-independent conversion; real print needs an ICC profile
24-bit integer4,374,479
CSS custom property--colour: #42BFCF;

Brightness & contrast

Relative luminance0.42925WCAG 2.x, 0 is black and 1 is white
Perceived brightness166.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 9.58:1
Contrast with white2.19:1WCAG normal text: Fail
Contrast with black9.58:1WCAG normal text: AAA
Greyscale equivalent#A6A6A6
Inverted#BD4030

Colour vision & accessibility

Protanopia#AFB8D0no red cones; affects about 1% of men; ΔE 31.2 from the original
Deuteranopia#9BA9CFno green cones; the most common form, about 1% of men; ΔE 32.5 from the original
Tritanopia#00C7C4no blue cones; rare, and affects men and women equally; ΔE 14.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.19:1WCAG large text: Fail
Contrast with black, large text9.58:1WCAG large text: AAA

Named colours

Nearest named CSS colourDark turquoise (#00CED1)ΔE 12.67, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#CF5242
Analogous#42CF99, #4278CF
Triadic#CF42BF, #BFCF42
Split complementary#CF4278, #CF9942
Tetradic#9942CF, #CF5242, #78CF42

Tints, shades & saturation

Lighter +40%#E5F6F8
Lighter +30%#BCE8EE
Lighter +20%#93DBE4
Lighter +10%#6BCDD9
Darker −10%#2DA2B1
Darker −20%#237D88
Darker −30%#185860
Darker −40%#0E3237
More saturated +25%#24D6ED
Less saturated −25%#60A8B1

Channel breakdown

R66
G191
B207
Red66 (25.9%)
Green191 (74.9%)
Blue207 (81.2%)
Hue186.81°
Saturation (HSL)59.49%
Lightness53.53%
Dominant channelBlue
Hex per channelR 42 · G BF · B CF

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