Colour

#133F87

#133F87
Blue
Dark
Nearest: Dark slateblue

#133F87 is a blue with RGB values 19, 63, 135 and HSL 217°, 75%, 30%. It is a dark colour, so white text on it reaches 10.1:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#133F87#133F87

HEX#133F87

RGBrgb(19, 63, 135)

RGB (0–1)0.0745, 0.2471, 0.5294

RGB percentages7.5%, 24.7%, 52.9%

HSLhsl(217.2, 75.3%, 30.2%)

HSV / HSBhsv(217.2, 85.9%, 52.9%)

CMYK85.9%, 53.3%, 0%, 47.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer1,261,447

CSS custom property--colour: #133F87;

Brightness & contrast

Relative luminance0.05443WCAG 2.x, 0 is black and 1 is white

Perceived brightness67.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 10.05:1

Contrast with white10.05:1WCAG normal text: AAA

Contrast with black2.09:1WCAG normal text: Fail

Greyscale equivalent#3B3B3B

Inverted#ECC078

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#0C478Ano red cones; affects about 1% of men; ΔE 5.8 from the original

Deuteranopia#003D86no green cones; the most common form, about 1% of men; ΔE 1.6 from the original

Tritanopia#00515Cno blue cones; rare, and affects men and women equally; ΔE 44.6 from the original

Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning

Contrast with white, large text10.05:1WCAG large text: AAA

Contrast with black, large text2.09:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 12.5 Midnight blue · ΔE 22 Rebecca purple · ΔE 29.3 Slate blue · ΔE 31 Royal blue · ΔE 31.3 Steel blue · ΔE 32.9

Nearest named CSS colourDark slateblue (#483D8B)ΔE 12.48, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#875B13

Analogous#137987, #211387

Triadic#87133F, #3F8713

Split complementary#872113, #798713

Tetradic#871379, #875B13, #138721

Tints, shades & saturation

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

Lighter +40%#7AA5EC

Lighter +30%#4D87E6

Lighter +20%#2069E0

Lighter +10%#1954B4

Darker −10%#0D2A5A

Darker −20%#06152E

Darker −30%#000001

Darker −40%#000000

More saturated +25%#003A9A

Less saturated −25%#264474

Channel breakdown

R19

G63

B135

Red19 (7.5%)

Green63 (24.7%)

Blue135 (52.9%)

Hue217.24°

Saturation (HSL)75.32%

Lightness30.2%

Dominant channelBlue

Hex per channelR 13 · G 3F · B 87

Keep nerding

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

#133F87

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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