Colour

#15529B

#15529B
Blue
Dark
Nearest: Dark slateblue

#15529B is a blue with RGB values 21, 82, 155 and HSL 213°, 76%, 35%. It is a dark colour, so white text on it reaches 7.7:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#15529B#15529B

HEX#15529B

RGBrgb(21, 82, 155)

RGB (0–1)0.0824, 0.3216, 0.6078

RGB percentages8.2%, 32.2%, 60.8%

HSLhsl(212.7, 76.1%, 34.5%)

HSV / HSBhsv(212.7, 86.5%, 60.8%)

CMYK86.5%, 47.1%, 0%, 39.2%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer1,397,403

CSS custom property--colour: #15529B;

Brightness & contrast

Relative luminance0.08561WCAG 2.x, 0 is black and 1 is white

Perceived brightness82.6 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 7.74:1

Contrast with white7.74:1WCAG normal text: AAA

Contrast with black2.71:1WCAG normal text: Fail

Greyscale equivalent#4A4A4A

Inverted#EAAD64

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#2A599Eno red cones; affects about 1% of men; ΔE 4.2 from the original

Deuteranopia#024D9Ano green cones; the most common form, about 1% of men; ΔE 3.6 from the original

Tritanopia#00646Fno blue cones; rare, and affects men and women equally; ΔE 43.8 from the original

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

Contrast with white, large text7.74:1WCAG large text: AAA

Contrast with black, large text2.71:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 17.3 Steel blue · ΔE 25.5 Cornflower blue · ΔE 27.1 Royal blue · ΔE 29.1 Midnight blue · ΔE 29.7 Dodgerblue · ΔE 30.4

Nearest named CSS colourDark slateblue (#483D8B)ΔE 17.3, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#9B5E15

Analogous#15959B, #1B159B

Triadic#9B1552, #529B15

Split complementary#9B1B15, #959B15

Tetradic#9B1595, #9B5E15, #159B1B

Tints, shades & saturation

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

Lighter +40%#8DBAEF

Lighter +30%#609EE9

Lighter +20%#3383E3

Lighter +10%#1B6AC8

Darker −10%#0F3A6E

Darker −20%#092241

Darker −30%#030B14

Darker −40%#000000

More saturated +25%#0050B0

Less saturated −25%#2B5485

Channel breakdown

R21

G82

B155

Red21 (8.2%)

Green82 (32.2%)

Blue155 (60.8%)

Hue212.69°

Saturation (HSL)76.14%

Lightness34.51%

Dominant channelBlue

Hex per channelR 15 · G 52 · B 9B

Keep nerding

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

#15529B

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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