Colour

#403E4F

#403E4F
Blue
Dark
Nearest: Dark slate grey

#403E4F is a blue with RGB values 64, 62, 79 and HSL 247°, 12%, 28%. It is a dark colour, so white text on it reaches 10.4:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#403E4F#403E4F

HEX#403E4F

RGBrgb(64, 62, 79)

RGB (0–1)0.251, 0.2431, 0.3098

RGB percentages25.1%, 24.3%, 31%

HSLhsl(247.1, 12.1%, 27.6%)

HSV / HSBhsv(247.1, 21.5%, 31%)

CMYK19%, 21.5%, 0%, 69%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer4,210,255

CSS custom property--colour: #403E4F;

Brightness & contrast

Relative luminance0.051WCAG 2.x, 0 is black and 1 is white

Perceived brightness64.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 10.4:1

Contrast with white10.4:1WCAG normal text: AAA

Contrast with black2.02:1WCAG normal text: Fail

Greyscale equivalent#404040

Inverted#BFC1B0

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#3A4050no red cones; affects about 1% of men; ΔE 3.3 from the original

Deuteranopia#3A3F4Fno green cones; the most common form, about 1% of men; ΔE 2.9 from the original

Tritanopia#3D4144no blue cones; rare, and affects men and women equally; ΔE 9.6 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text10.4:1WCAG large text: AAA

Contrast with black, large text2.02:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 18.3 Dim grey · ΔE 20.7 Slate grey · ΔE 26.8 Gray · ΔE 28.8 Black · ΔE 29.2 Light slate grey · ΔE 29.8

Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 18.32, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#4D4F3E

Analogous#3E454F, #483E4F

Triadic#4F403E, #3E4F40

Split complementary#4F493E, #454F3E

Tetradic#4F3E45, #4D4F3E, #3E4F49

Tints, shades & saturation

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

Lighter +40%#A5A3B6

Lighter +30%#8986A0

Lighter +20%#6E6B88

Lighter +10%#57546C

Darker −10%#292832

Darker −20%#121116

Darker −30%#000000

Darker −40%#000000

More saturated +25%#332C61

Less saturated −25%#474747

Channel breakdown

R64

G62

B79

Red64 (25.1%)

Green62 (24.3%)

Blue79 (31%)

Hue247.06°

Saturation (HSL)12.06%

Lightness27.65%

Dominant channelBlue

Hex per channelR 40 · G 3E · B 4F

Keep nerding

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

#403E4F

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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