Recognised as Colour

#556ACD

#556ACD
Blue
Dark
Nearest: Royal blue

#556ACD is a blue with RGB values 85, 106, 205 and HSL 229°, 55%, 57%. It is a dark colour, so white text on it reaches 4.9:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#556ACD#556ACD

HEX#556ACD

RGBrgb(85, 106, 205)

RGB (0–1)0.3333, 0.4157, 0.8039

RGB percentages33.3%, 41.6%, 80.4%

HSLhsl(229.5, 54.5%, 56.9%)

HSV / HSBhsv(229.5, 58.5%, 80.4%)

CMYK58.5%, 48.3%, 0%, 19.6%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer5,597,901

CSS custom property--colour: #556ACD;

Brightness & contrast

Relative luminance0.16647WCAG 2.x, 0 is black and 1 is white

Perceived brightness116.4 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 4.85:1

Contrast with white4.85:1WCAG normal text: AA

Contrast with black4.33:1WCAG normal text: Fail

Greyscale equivalent#6D6D6D

Inverted#AA9532

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#3977D1no red cones; affects about 1% of men; ΔE 11.7 from the original

Deuteranopia#256CCBno green cones; the most common form, about 1% of men; ΔE 9.2 from the original

Tritanopia#008092no blue cones; rare, and affects men and women equally; ΔE 57.3 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text4.85:1WCAG large text: AAA

Contrast with black, large text4.33:1WCAG large text: AA

Named colours

Royal blue · ΔE 12.2 Slate blue · ΔE 14.8 Medium purple · ΔE 16.9 Dodgerblue · ΔE 19.2 Cornflower blue · ΔE 19.5 Dark slateblue · ΔE 21.1

Nearest named CSS colourRoyal blue (#4169E1)ΔE 12.19, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#CDB855

Analogous#55A6CD, #7C55CD

Triadic#CD556A, #6ACD55

Split complementary#CD7C55, #A6CD55

Tetradic#CD55A6, #CDB855, #55CD7C

Tints, shades & saturation

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

Lighter +40%#F3F4FB

Lighter +30%#CBD2F0

Lighter +20%#A4AFE4

Lighter +10%#7C8DD9

Darker −10%#364DB9

Darker −20%#2B3D91

Darker −30%#1F2C6A

Darker −40%#141C42

More saturated +25%#3958E9

Less saturated −25%#707CB2

Channel breakdown

R85

G106

B205

Red85 (33.3%)

Green106 (41.6%)

Blue205 (80.4%)

Hue229.5°

Saturation (HSL)54.55%

Lightness56.86%

Dominant channelBlue

Hex per channelR 55 · G 6A · B CD

Keep nerding

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

#556ACD

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

Nerdulate something else