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Recognised as Colour

#40C4CD

  • #40C4CD
  • Cyan
  • Dark
  • Nearest: Dark turquoise

#40C4CD is a cyan with RGB values 64, 196, 205 and HSL 184°, 59%, 53%. It is a dark colour, so black text on it reaches 10:1 contrast (AAA for normal text). The nearest named colour is Dark turquoise.

Colour values

#40C4CD#40C4CD
HEX#40C4CD
RGBrgb(64, 196, 205)
RGB (0–1)0.251, 0.7686, 0.8039
RGB percentages25.1%, 76.9%, 80.4%
HSLhsl(183.8, 58.5%, 52.7%)
HSV / HSBhsv(183.8, 68.8%, 80.4%)
CMYK68.8%, 4.4%, 0%, 19.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,244,685
CSS custom property--colour: #40C4CD;

Brightness & contrast

Relative luminance0.44978WCAG 2.x, 0 is black and 1 is white
Perceived brightness169 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 10:1
Contrast with white2.1:1WCAG normal text: Fail
Contrast with black10:1WCAG normal text: AAA
Greyscale equivalent#A9A9A9
Inverted#BF3B32

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#B5BCCEno red cones; affects about 1% of men; ΔE 33.8 from the original
Deuteranopia#A1ACCEno green cones; the most common form, about 1% of men; ΔE 35.8 from the original
Tritanopia#00CBC6no blue cones; rare, and affects men and women equally; ΔE 11.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.1:1WCAG large text: Fail
Contrast with black, large text10:1WCAG large text: AAA

Named colours

Dark turquoise · ΔE 8.4Medium turquoise · ΔE 9.3Light seagreen · ΔE 12.4Turquoise · ΔE 18.2Cadetblue · ΔE 18.7Sky blue · ΔE 19.5
Nearest named CSS colourDark turquoise (#00CED1)ΔE 8.39, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#CD4940
Analogous#40CD90, #407ECD
Triadic#CD40C4, #C4CD40
Split complementary#CD407E, #CD9040
Tetradic#9040CD, #CD4940, #7ECD40

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#E2F6F7
Lighter +30%#B9E9ED
Lighter +20%#91DDE2
Lighter +10%#68D0D8
Darker −10%#2DA5AD
Darker −20%#237E84
Darker −30%#18585C
Darker −40%#0D3134
More saturated +25%#22DEEB
Less saturated −25%#5EAAAF

Channel breakdown

R64
G196
B205
Red64 (25.1%)
Green196 (76.9%)
Blue205 (80.4%)
Hue183.83°
Saturation (HSL)58.51%
Lightness52.75%
Dominant channelBlue
Hex per channelR 40 · G C4 · B CD

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Every value on this page was computed from “40c4cd” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.