Colour

#40495F

#40495F
Blue
Dark
Nearest: Dark slate grey

#40495F is a blue with RGB values 64, 73, 95 and HSL 223°, 19%, 31%. It is a dark colour, so white text on it reaches 9:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#40495F#40495F

HEX#40495F

RGBrgb(64, 73, 95)

RGB (0–1)0.251, 0.2863, 0.3725

RGB percentages25.1%, 28.6%, 37.3%

HSLhsl(222.6, 19.5%, 31.2%)

HSV / HSBhsv(222.6, 32.6%, 37.3%)

CMYK32.6%, 23.2%, 0%, 62.7%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer4,213,087

CSS custom property--colour: #40495F;

Brightness & contrast

Relative luminance0.06681WCAG 2.x, 0 is black and 1 is white

Perceived brightness73.4 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 8.99:1

Contrast with white8.99:1WCAG normal text: AAA

Contrast with black2.34:1WCAG normal text: Fail

Greyscale equivalent#494949

Inverted#BFB6A0

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#424B60no red cones; affects about 1% of men; ΔE 1.1 from the original

Deuteranopia#3F485Eno green cones; the most common form, about 1% of men; ΔE 0.4 from the original

Tritanopia#374D50no blue cones; rare, and affects men and women equally; ΔE 13.7 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text8.99:1WCAG large text: AAA

Contrast with black, large text2.34:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 17.4 Dim grey · ΔE 19.6 Slate grey · ΔE 22.5 Light slate grey · ΔE 25.4 Gray · ΔE 26.7 Steel blue · ΔE 28.7

Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 17.39, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#5F5640

Analogous#40585F, #47405F

Triadic#5F4049, #495F40

Split complementary#5F4740, #585F40

Tetradic#5F4059, #5F5640, #405F47

Tints, shades & saturation

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

Lighter +40%#A7AFC4

Lighter +30%#8994AF

Lighter +20%#6A789B

Lighter +10%#55607D

Darker −10%#2B3241

Darker −20%#171A22

Darker −30%#020304

Darker −40%#000000

More saturated +25%#2C4173

Less saturated −25%#505050

Channel breakdown

R64

G73

B95

Red64 (25.1%)

Green73 (28.6%)

Blue95 (37.3%)

Hue222.58°

Saturation (HSL)19.5%

Lightness31.18%

Dominant channelBlue

Hex per channelR 40 · G 49 · B 5F

Keep nerding

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

#40495F

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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