Colour

#42495D

#42495D
Blue
Dark
Nearest: Dark slate grey

#42495D is a blue with RGB values 66, 73, 93 and HSL 224°, 17%, 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

#42495D#42495D

HEX#42495D

RGBrgb(66, 73, 93)

RGB (0–1)0.2588, 0.2863, 0.3647

RGB percentages25.9%, 28.6%, 36.5%

HSLhsl(224.4, 17%, 31.2%)

HSV / HSBhsv(224.4, 29%, 36.5%)

CMYK29%, 21.5%, 0%, 63.5%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer4,344,157

CSS custom property--colour: #42495D;

Brightness & contrast

Relative luminance0.06714WCAG 2.x, 0 is black and 1 is white

Perceived brightness73.6 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 8.96:1

Contrast with white8.96:1WCAG normal text: AAA

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

Greyscale equivalent#494949

Inverted#BDB6A2

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#434B5Eno red cones; affects about 1% of men; ΔE 1.1 from the original

Deuteranopia#41485Dno green cones; the most common form, about 1% of men; ΔE 0.8 from the original

Tritanopia#3B4D50no blue cones; rare, and affects men and women equally; ΔE 12.2 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text8.96:1WCAG large text: AAA

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

Named colours

Dark slate grey · ΔE 16.7 Dim grey · ΔE 18.5 Slate grey · ΔE 22.3 Light slate grey · ΔE 25.2 Gray · ΔE 25.9 Steel blue · ΔE 29.6

Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 16.69, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#5D5642

Analogous#42565D, #49425D

Triadic#5D4249, #495D42

Split complementary#5D4942, #565D42

Tetradic#5D4256, #5D5642, #425D49

Tints, shades & saturation

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

Lighter +40%#A9AFC2

Lighter +30%#8B94AD

Lighter +20%#6D7898

Lighter +10%#57607B

Darker −10%#2D323F

Darker −20%#181A21

Darker −30%#020304

Darker −40%#000000

More saturated +25%#2E3F71

Less saturated −25%#505050

Channel breakdown

R66

G73

B93

Red66 (25.9%)

Green73 (28.6%)

Blue93 (36.5%)

Hue224.44°

Saturation (HSL)16.98%

Lightness31.18%

Dominant channelBlue

Hex per channelR 42 · G 49 · B 5D

Keep nerding

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

#42495D

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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