Colour

#133F79

#133F79
Blue
Dark
Nearest: Dark slateblue

#133F79 is a blue with RGB values 19, 63, 121 and HSL 214°, 73%, 27%. 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 slateblue.

Colour values

#133F79#133F79

HEX#133F79

RGBrgb(19, 63, 121)

RGB (0–1)0.0745, 0.2471, 0.4745

RGB percentages7.5%, 24.7%, 47.5%

HSLhsl(214.1, 72.9%, 27.5%)

HSV / HSBhsv(214.1, 84.3%, 47.5%)

CMYK84.3%, 47.9%, 0%, 52.5%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer1,261,433

CSS custom property--colour: #133F79;

Brightness & contrast

Relative luminance0.05074WCAG 2.x, 0 is black and 1 is white

Perceived brightness64.1 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 10.42:1

Contrast with white10.42:1WCAG normal text: AAA

Contrast with black2.01:1WCAG normal text: Fail

Greyscale equivalent#3A3A3A

Inverted#ECC086

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#20457Bno red cones; affects about 1% of men; ΔE 4 from the original

Deuteranopia#053B78no green cones; the most common form, about 1% of men; ΔE 2.9 from the original

Tritanopia#004D56no blue cones; rare, and affects men and women equally; ΔE 36.3 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text10.42:1WCAG large text: AAA

Contrast with black, large text2.01:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 18.8 Midnight blue · ΔE 28.7 Steel blue · ΔE 28.8 Rebecca purple · ΔE 36.5 Cornflower blue · ΔE 37 Slate grey · ΔE 38.6

Nearest named CSS colourDark slateblue (#483D8B)ΔE 18.84, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#794D13

Analogous#137279, #1A1379

Triadic#79133F, #3F7913

Split complementary#791A13, #727913

Tetradic#791372, #794D13, #13791A

Tints, shades & saturation

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

Lighter +40%#70A4E8

Lighter +30%#4388E2

Lighter +20%#216DD1

Lighter +10%#1A56A5

Darker −10%#0C284D

Darker −20%#051121

Darker −30%#000000

Darker −40%#000000

More saturated +25%#013D8B

Less saturated −25%#254167

Channel breakdown

R19

G63

B121

Red19 (7.5%)

Green63 (24.7%)

Blue121 (47.5%)

Hue214.12°

Saturation (HSL)72.86%

Lightness27.45%

Dominant channelBlue

Hex per channelR 13 · G 3F · B 79

Keep nerding

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

#133F79

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

Nerdulate something else