Colour

#5161B2

#5161B2
Blue
Dark
Nearest: Dark slateblue

#5161B2 is a blue with RGB values 81, 97, 178 and HSL 230°, 39%, 51%. It is a dark colour, so white text on it reaches 5.7:1 contrast (AA for normal text). The nearest named colour is Dark slateblue.

Colour values

#5161B2#5161B2

HEX#5161B2

RGBrgb(81, 97, 178)

RGB (0–1)0.3176, 0.3804, 0.698

RGB percentages31.8%, 38%, 69.8%

HSLhsl(230.1, 38.6%, 50.8%)

HSV / HSBhsv(230.1, 54.5%, 69.8%)

CMYK54.5%, 45.5%, 0%, 30.2%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer5,333,426

CSS custom property--colour: #5161B2;

Brightness & contrast

Relative luminance0.13513WCAG 2.x, 0 is black and 1 is white

Perceived brightness105.3 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.67:1

Contrast with white5.67:1WCAG normal text: AA

Contrast with black3.7:1WCAG normal text: Fail

Greyscale equivalent#636363

Inverted#AE9E4D

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#3D6BB5no red cones; affects about 1% of men; ΔE 9.5 from the original

Deuteranopia#3263B0no green cones; the most common form, about 1% of men; ΔE 7.9 from the original

Tritanopia#207381no blue cones; rare, and affects men and women equally; ΔE 47.9 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text5.67:1WCAG large text: AAA

Contrast with black, large text3.7:1WCAG large text: AA

Named colours

Dark slateblue · ΔE 15.5 Cornflower blue · ΔE 20.7 Royal blue · ΔE 22.3 Slate blue · ΔE 22.3 Medium purple · ΔE 22.8 Dodgerblue · ΔE 25.4

Nearest named CSS colourDark slateblue (#483D8B)ΔE 15.45, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#B2A251

Analogous#5191B2, #7251B2

Triadic#B25161, #61B251

Split complementary#B27251, #91B251

Tetradic#B25191, #B2A251, #51B272

Tints, shades & saturation

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

Lighter +40%#DEE1F1

Lighter +30%#BBC1E1

Lighter +20%#98A1D1

Lighter +10%#7481C2

Darker −10%#404D90

Darker −20%#303A6D

Darker −30%#212749

Darker −40%#111426

More saturated +25%#324CD1

Less saturated −25%#707693

Channel breakdown

R81

G97

B178

Red81 (31.8%)

Green97 (38%)

Blue178 (69.8%)

Hue230.1°

Saturation (HSL)38.65%

Lightness50.78%

Dominant channelBlue

Hex per channelR 51 · G 61 · B B2

Keep nerding

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

#5161B2

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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