Colour

#40738C

#40738C
Cyan
Dark
Nearest: Slate grey

#40738C is a cyan with RGB values 64, 115, 140 and HSL 200°, 37%, 40%. It is a dark colour, so white text on it reaches 5.2:1 contrast (AA for normal text). The nearest named colour is Slate grey.

Colour values

#40738C#40738C

HEX#40738C

RGBrgb(64, 115, 140)

RGB (0–1)0.251, 0.451, 0.549

RGB percentages25.1%, 45.1%, 54.9%

HSLhsl(199.7, 37.3%, 40%)

HSV / HSBhsv(199.7, 54.3%, 54.9%)

CMYK54.3%, 17.9%, 0%, 45.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer4,223,884

CSS custom property--colour: #40738C;

Brightness & contrast

Relative luminance0.15245WCAG 2.x, 0 is black and 1 is white

Perceived brightness105.9 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.19:1

Contrast with white5.19:1WCAG normal text: AA

Contrast with black4.05:1WCAG normal text: Fail

Greyscale equivalent#6A6A6A

Inverted#BF8C73

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#67718Dno red cones; affects about 1% of men; ΔE 12.9 from the original

Deuteranopia#5C698Cno green cones; the most common form, about 1% of men; ΔE 13.8 from the original

Tritanopia#0E7A7Bno blue cones; rare, and affects men and women equally; ΔE 20 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text5.19:1WCAG large text: AAA

Contrast with black, large text4.05:1WCAG large text: AA

Named colours

Slate grey · ΔE 13.1 Light slate grey · ΔE 14.6 Steel blue · ΔE 15.8 Dark slate grey · ΔE 21.2 Dim grey · ΔE 21.3 Cadetblue · ΔE 21.5

Nearest named CSS colourSlate grey (#708090)ΔE 13.15, a distinctly different colour

Hue familycyan

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#8C5940

Analogous#408C7F, #404D8C

Triadic#8C4073, #738C40

Split complementary#8C404D, #8C7F40

Tetradic#7F408C, #8C5940, #4D8C40

Tints, shades & saturation

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

Lighter +40%#B9D3DF

Lighter +30%#96BCCF

Lighter +20%#73A6BF

Lighter +10%#5090AF

Darker −10%#305669

Darker −20%#203A46

Darker −30%#101D23

Darker −40%#000000

More saturated +25%#267CA6

Less saturated −25%#5A6A73

Channel breakdown

R64

G115

B140

Red64 (25.1%)

Green115 (45.1%)

Blue140 (54.9%)

Hue199.74°

Saturation (HSL)37.25%

Lightness40%

Dominant channelBlue

Hex per channelR 40 · G 73 · B 8C

Keep nerding

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

#40738C

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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