Colour

#555ECF

#555ECF
Blue
Dark
Nearest: Slate blue

#555ECF is a blue with RGB values 85, 94, 207 and HSL 236°, 56%, 57%. It is a dark colour, so white text on it reaches 5.4:1 contrast (AA for normal text). The nearest named colour is Slate blue.

Colour values

#555ECF#555ECF

HEX#555ECF

RGBrgb(85, 94, 207)

RGB (0–1)0.3333, 0.3686, 0.8118

RGB percentages33.3%, 36.9%, 81.2%

HSLhsl(235.6, 56%, 57.3%)

HSV / HSBhsv(235.6, 58.9%, 81.2%)

CMYK58.9%, 54.6%, 0%, 18.8%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer5,594,831

CSS custom property--colour: #555ECF;

Brightness & contrast

Relative luminance0.14442WCAG 2.x, 0 is black and 1 is white

Perceived brightness110.6 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.4:1

Contrast with white5.4:1WCAG normal text: AA

Contrast with black3.89:1WCAG normal text: Fail

Greyscale equivalent#646464

Inverted#AAA130

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#0C6FD3no red cones; affects about 1% of men; ΔE 17.6 from the original

Deuteranopia#0065CDno green cones; the most common form, about 1% of men; ΔE 13.8 from the original

Tritanopia#00788Dno blue cones; rare, and affects men and women equally; ΔE 64.6 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text5.4:1WCAG large text: AAA

Contrast with black, large text3.89:1WCAG large text: AA

Named colours

Slate blue · ΔE 6.3 Royal blue · ΔE 7.3 Medium slateblue · ΔE 14.3 Medium purple · ΔE 15.5 Rebecca purple · ΔE 21.6 Dark slateblue · ΔE 22.9

Nearest named CSS colourSlate blue (#6A5ACD)ΔE 6.31, clearly different but related

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#CFC655

Analogous#559BCF, #8955CF

Triadic#CF555E, #5ECF55

Split complementary#CF8955, #9BCF55

Tetradic#CF559B, #CFC655, #55CF89

Tints, shades & saturation

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

Lighter +40%#F4F5FC

Lighter +30%#CCCFF1

Lighter +20%#A5A9E5

Lighter +10%#7D84DA

Darker −10%#353FBC

Darker −20%#2A3294

Darker −30%#1F246C

Darker −40%#131745

More saturated +25%#3A47EA

Less saturated −25%#7075B4

Channel breakdown

R85

G94

B207

Red85 (33.3%)

Green94 (36.9%)

Blue207 (81.2%)

Hue235.57°

Saturation (HSL)55.96%

Lightness57.25%

Dominant channelBlue

Hex per channelR 55 · G 5E · B CF

Keep nerding

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

#555ECF

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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