Colour

#2A3F66

#2A3F66
Blue
Dark
Nearest: Dark slateblue

#2A3F66 is a blue with RGB values 42, 63, 102 and HSL 219°, 42%, 28%. It is a dark colour, so white text on it reaches 10.5:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#2A3F66#2A3F66

HEX#2A3F66

RGBrgb(42, 63, 102)

RGB (0–1)0.1647, 0.2471, 0.4

RGB percentages16.5%, 24.7%, 40%

HSLhsl(219, 41.7%, 28.2%)

HSV / HSBhsv(219, 58.8%, 40%)

CMYK58.8%, 38.2%, 0%, 60%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer2,768,742

CSS custom property--colour: #2A3F66;

Brightness & contrast

Relative luminance0.05007WCAG 2.x, 0 is black and 1 is white

Perceived brightness63.6 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 10.49:1

Contrast with white10.49:1WCAG normal text: AAA

Contrast with black2:1WCAG normal text: Fail

Greyscale equivalent#3D3D3D

Inverted#D5C099

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#2F4268no red cones; affects about 1% of men; ΔE 1.6 from the original

Deuteranopia#283D65no green cones; the most common form, about 1% of men; ΔE 1.2 from the original

Tritanopia#05484Dno blue cones; rare, and affects men and women equally; ΔE 27.4 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text10.49:1WCAG large text: AAA

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

Named colours

Dark slateblue · ΔE 27.4 Dark slate grey · ΔE 27.6 Steel blue · ΔE 28 Slate grey · ΔE 30.8 Dim grey · ΔE 31.3 Light slate grey · ΔE 33.2

Nearest named CSS colourDark slateblue (#483D8B)ΔE 27.4, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#66512A

Analogous#2A5D66, #332A66

Triadic#662A3F, #3F662A

Split complementary#66332A, #5D662A

Tetradic#662A5D, #66512A, #2A6633

Tints, shades & saturation

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

Lighter +40%#8CA4D0

Lighter +30%#6887C1

Lighter +20%#486CAE

Lighter +10%#39558A

Darker −10%#1B2942

Darker −20%#0C121E

Darker −30%#000000

Darker −40%#000000

More saturated +25%#183A78

Less saturated −25%#3C4454

Channel breakdown

R42

G63

B102

Red42 (16.5%)

Green63 (24.7%)

Blue102 (40%)

Hue219°

Saturation (HSL)41.67%

Lightness28.24%

Dominant channelBlue

Hex per channelR 2A · G 3F · B 66

Keep nerding

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

#2A3F66

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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