Colour

#40C590

#40C590
Cyan
Dark
Nearest: Medium seagreen

#40C590 is a cyan with RGB values 64, 197, 144 and HSL 156°, 53%, 51%. It is a dark colour, so black text on it reaches 9.6:1 contrast (AAA for normal text). The nearest named colour is Medium seagreen.

Colour values

#40C590#40C590

HEX#40C590

RGBrgb(64, 197, 144)

RGB (0–1)0.251, 0.7725, 0.5647

RGB percentages25.1%, 77.3%, 56.5%

HSLhsl(156.1, 53.4%, 51.2%)

HSV / HSBhsv(156.1, 67.5%, 77.3%)

CMYK67.5%, 0%, 26.9%, 22.7%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer4,244,880

CSS custom property--colour: #40C590;

Brightness & contrast

Relative luminance0.43036WCAG 2.x, 0 is black and 1 is white

Perceived brightness162.4 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 9.61:1

Contrast with white2.19:1WCAG normal text: Fail

Contrast with black9.61:1WCAG normal text: AAA

Greyscale equivalent#A5A5A5

Inverted#BF3A6F

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#C2B78Dno red cones; affects about 1% of men; ΔE 46.2 from the original

Deuteranopia#B0AA93no green cones; the most common form, about 1% of men; ΔE 46.7 from the original

Tritanopia#00C5B7no blue cones; rare, and affects men and women equally; ΔE 21.4 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 text9.61:1WCAG large text: AAA

Named colours

Medium seagreen · ΔE 10.2 Medium aquamarine · ΔE 13.5 Aquamarine · ΔE 21.7 Sea green · ΔE 22.1 Turquoise · ΔE 22.9 Dark seagreen · ΔE 24.6

Nearest named CSS colourMedium seagreen (#3CB371)ΔE 10.18, a distinctly different colour

Hue familycyan

CSS keyword usableNo exact keyword

Colour harmonies

base +30°+90°+120°+180°+210°+240°+270°+330°

Complementary#C54075

Analogous#40C54D, #40B7C5

Triadic#9040C5, #C59040

Split complementary#C540B7, #C54D40

Tetradic#4E40C5, #C54075, #B8C540

Tints, shades & saturation

+40%+30%+20%+10%base -10%-20%-30%-40%

Lighter +40%#DCF5EB

Lighter +30%#B5E9D4

Lighter +20%#8EDDBD

Lighter +10%#67D1A7

Darker −10%#31A174

Darker −20%#257A58

Darker −30%#19533C

Darker −40%#0D2C20

More saturated +25%#21E496

Less saturated −25%#5FA68A

Channel breakdown

R64

G197

B144

Red64 (25.1%)

Green197 (77.3%)

Blue144 (56.5%)

Hue156.09°

Saturation (HSL)53.41%

Lightness51.18%

Dominant channelGreen

Hex per channelR 40 · G C5 · B 90

Keep nerding

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#40C590

Colour values

Brightness & contrast

Colour vision & accessibility

Named colours

Colour harmonies

Tints, shades & saturation

Channel breakdown

Keep nerding

Harmonies

Lighter and darker

Similar named colours

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