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Recognised as Colour

#42CFDC

  • #42CFDC
  • Cyan
  • Light
  • Nearest: Dark turquoise

#42CFDC is a cyan with RGB values 66, 207, 220 and HSL 185°, 69%, 56%. It is a light colour, so black text on it reaches 11.2:1 contrast (AAA for normal text). The nearest named colour is Dark turquoise.

Colour values

#42CFDC#42CFDC
HEX#42CFDC
RGBrgb(66, 207, 220)
RGB (0–1)0.2588, 0.8118, 0.8627
RGB percentages25.9%, 81.2%, 86.3%
HSLhsl(185.1, 68.8%, 56.1%)
HSV / HSBhsv(185.1, 70%, 86.3%)
CMYK70%, 5.9%, 0%, 13.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,378,588
CSS custom property--colour: #42CFDC;

Brightness & contrast

Relative luminance0.50951WCAG 2.x, 0 is black and 1 is white
Perceived brightness178.8 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 11.19:1
Contrast with white1.88:1WCAG normal text: Fail
Contrast with black11.19:1WCAG normal text: AAA
Greyscale equivalent#B2B2B2
Inverted#BD3023

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#BFC6DDno red cones; affects about 1% of men; ΔE 35.4 from the original
Deuteranopia#A8B6DDno green cones; the most common form, about 1% of men; ΔE 36.6 from the original
Tritanopia#00D7D3no blue cones; rare, and affects men and women equally; ΔE 12.8 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text1.88:1WCAG large text: Fail
Contrast with black, large text11.19:1WCAG large text: AAA

Named colours

Dark turquoise · ΔE 8.4Medium turquoise · ΔE 10.1Light seagreen · ΔE 16.2Turquoise · ΔE 18.1Sky blue · ΔE 18.5Aqua · ΔE 21.4
Nearest named CSS colourDark turquoise (#00CED1)ΔE 8.38, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#DC4F42
Analogous#42DC9C, #4282DC
Triadic#DC42CF, #CFDC42
Split complementary#DC4282, #DC9C42
Tetradic#9C42DC, #DC4F42, #82DC42

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#EEFBFC
Lighter +30%#C3F0F4
Lighter +20%#98E5EC
Lighter +10%#6DDAE4
Darker −10%#25B9C6
Darker −20%#1D919B
Darker −30%#156870
Darker −40%#0D4045
More saturated +25%#26E6F8
Less saturated −25%#5EB8C0

Channel breakdown

R66
G207
B220
Red66 (25.9%)
Green207 (81.2%)
Blue220 (86.3%)
Hue185.06°
Saturation (HSL)68.75%
Lightness56.08%
Dominant channelBlue
Hex per channelR 42 · G CF · B DC

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