Colour

#131D53

#131D53
Blue
Dark
Nearest: Dark slateblue

#131D53 is a blue with RGB values 19, 29, 83 and HSL 231°, 63%, 20%. It is a dark colour, so white text on it reaches 15.8:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#131D53#131D53

HEX#131D53

RGBrgb(19, 29, 83)

RGB (0–1)0.0745, 0.1137, 0.3255

RGB percentages7.5%, 11.4%, 32.5%

HSLhsl(230.6, 62.7%, 20%)

HSV / HSBhsv(230.6, 77.1%, 32.5%)

CMYK77.1%, 65.1%, 0%, 67.5%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer1,252,691

CSS custom property--colour: #131D53;

Brightness & contrast

Relative luminance0.01642WCAG 2.x, 0 is black and 1 is white

Perceived brightness37.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 15.81:1

Contrast with white15.81:1WCAG normal text: AAA

Contrast with black1.33:1WCAG normal text: Fail

Greyscale equivalent#1F1F1F

Inverted#ECE2AC

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#002655no red cones; affects about 1% of men; ΔE 8.8 from the original

Deuteranopia#002052no green cones; the most common form, about 1% of men; ΔE 5.1 from the original

Tritanopia#002B34no blue cones; rare, and affects men and women equally; ΔE 36.5 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text15.81:1WCAG large text: AAA

Contrast with black, large text1.33:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 21.1 Midnight blue · ΔE 21.5 Rebecca purple · ΔE 34.9 Indigo · ΔE 40.3 Black · ΔE 40.5 Navy · ΔE 43.2

Nearest named CSS colourDark slateblue (#483D8B)ΔE 21.13, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#534913

Analogous#133D53, #291353

Triadic#53131D, #1D5313

Split complementary#532913, #3D5313

Tetradic#53133D, #534913, #135329

Tints, shades & saturation

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

Lighter +40%#596DD9

Lighter +30%#3049D0

Lighter +20%#263AA6

Lighter +10%#1C2C7D

Darker −10%#0A0F29

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#061460

Less saturated −25%#202646

Channel breakdown

R19

G29

B83

Red19 (7.5%)

Green29 (11.4%)

Blue83 (32.5%)

Hue230.63°

Saturation (HSL)62.75%

Lightness20%

Dominant channelBlue

Hex per channelR 13 · G 1D · B 53

Keep nerding

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#131D53

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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