Recognised as Colour

#356ACB

#356ACB
Blue
Dark
Nearest: Royal blue

#356ACB is a blue with RGB values 53, 106, 203 and HSL 219°, 59%, 50%. It is a dark colour, so white text on it reaches 5.2:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#356ACB#356ACB

HEX#356ACB

RGBrgb(53, 106, 203)

RGB (0–1)0.2078, 0.4157, 0.7961

RGB percentages20.8%, 41.6%, 79.6%

HSLhsl(218.8, 59.1%, 50.2%)

HSV / HSBhsv(218.8, 73.9%, 79.6%)

CMYK73.9%, 47.8%, 0%, 20.4%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer3,500,747

CSS custom property--colour: #356ACB;

Brightness & contrast

Relative luminance0.15377WCAG 2.x, 0 is black and 1 is white

Perceived brightness110.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.15:1

Contrast with white5.15:1WCAG normal text: AA

Contrast with black4.08:1WCAG normal text: Fail

Greyscale equivalent#666666

Inverted#CA9534

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#3475CFno red cones; affects about 1% of men; ΔE 7.1 from the original

Deuteranopia#0367C9no green cones; the most common form, about 1% of men; ΔE 3.9 from the original

Tritanopia#008191no blue cones; rare, and affects men and women equally; ΔE 55.3 from the original

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

Contrast with white, large text5.15:1WCAG large text: AAA

Contrast with black, large text4.08:1WCAG large text: AA

Named colours

Royal blue · ΔE 14.3 Dodgerblue · ΔE 16.6 Cornflower blue · ΔE 18.2 Slate blue · ΔE 20.2 Dark slateblue · ΔE 22.7 Medium purple · ΔE 23.2

Nearest named CSS colourRoyal blue (#4169E1)ΔE 14.25, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#CB9635

Analogous#35B5CB, #4B35CB

Triadic#CB356A, #6ACB35

Split complementary#CB4B35, #B5CB35

Tetradic#CB35B5, #CB9635, #35CB4B

Tints, shades & saturation

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

Lighter +40%#D7E2F5

Lighter +30%#AFC4EA

Lighter +20%#86A6E0

Lighter +10%#5E88D5

Darker −10%#2A55A3

Darker −20%#20407A

Darker −30%#152B52

Darker −40%#0B1529

More saturated +25%#1561EB

Less saturated −25%#5573AB

Channel breakdown

R53

G106

B203

Red53 (20.8%)

Green106 (41.6%)

Blue203 (79.6%)

Hue218.8°

Saturation (HSL)59.06%

Lightness50.2%

Dominant channelBlue

Hex per channelR 35 · G 6A · B CB

Keep nerding

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

#356ACB

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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