Recognised as Colour

#19517B

#19517B
Blue
Dark
Nearest: Steel blue

#19517B is a blue with RGB values 25, 81, 123 and HSL 206°, 66%, 29%. It is a dark colour, so white text on it reaches 8.4:1 contrast (AAA for normal text). The nearest named colour is Steel blue.

Colour values

#19517B#19517B

HEX#19517B

RGBrgb(25, 81, 123)

RGB (0–1)0.098, 0.3176, 0.4824

RGB percentages9.8%, 31.8%, 48.2%

HSLhsl(205.7, 66.2%, 29%)

HSV / HSBhsv(205.7, 79.7%, 48.2%)

CMYK79.7%, 34.1%, 0%, 51.8%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer1,659,259

CSS custom property--colour: #19517B;

Brightness & contrast

Relative luminance0.07522WCAG 2.x, 0 is black and 1 is white

Perceived brightness75.9 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 8.39:1

Contrast with white8.39:1WCAG normal text: AAA

Contrast with black2.5:1WCAG normal text: Fail

Greyscale equivalent#484848

Inverted#E6AE84

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#3E537Dno red cones; affects about 1% of men; ΔE 7.7 from the original

Deuteranopia#30497Ano green cones; the most common form, about 1% of men; ΔE 9.3 from the original

Tritanopia#005B60no blue cones; rare, and affects men and women equally; ΔE 26.9 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text8.39:1WCAG large text: AAA

Contrast with black, large text2.5:1WCAG large text: Fail

Named colours

Steel blue · ΔE 19.9 Dark slate grey · ΔE 27 Slate grey · ΔE 27.1 Light slate grey · ΔE 29.1 Dim grey · ΔE 31.2 Dark slateblue · ΔE 31.3

Nearest named CSS colourSteel blue (#4682B4)ΔE 19.85, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#7B4319

Analogous#197B74, #19207B

Triadic#7B1951, #517B19

Split complementary#7B1920, #7B7419

Tetradic#74197B, #7B4319, #207B19

Tints, shades & saturation

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

Lighter +40%#7CB7E4

Lighter +30%#51A0DC

Lighter +20%#2A89D0

Lighter +10%#226DA5

Darker −10%#103551

Darker −20%#081926

Darker −30%#000000

Darker −40%#000000

More saturated +25%#07548E

Less saturated −25%#2C4E69

Channel breakdown

R25

G81

B123

Red25 (9.8%)

Green81 (31.8%)

Blue123 (48.2%)

Hue205.71°

Saturation (HSL)66.22%

Lightness29.02%

Dominant channelBlue

Hex per channelR 19 · G 51 · B 7B

Keep nerding

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

#19517B

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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