Colour

#579ADC

#579ADC
Blue
Dark
Nearest: Steel blue

#579ADC is a blue with RGB values 87, 154, 220 and HSL 210°, 66%, 60%. It is a dark colour, so black text on it reaches 7.1:1 contrast (AAA for normal text). The nearest named colour is Steel blue.

Colour values

#579ADC#579ADC

HEX#579ADC

RGBrgb(87, 154, 220)

RGB (0–1)0.3412, 0.6039, 0.8627

RGB percentages34.1%, 60.4%, 86.3%

HSLhsl(209.8, 65.5%, 60.2%)

HSV / HSBhsv(209.8, 60.5%, 86.3%)

CMYK60.5%, 30%, 0%, 13.7%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer5,741,276

CSS custom property--colour: #579ADC;

Brightness & contrast

Relative luminance0.30305WCAG 2.x, 0 is black and 1 is white

Perceived brightness147.3 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 7.06:1

Contrast with white2.97:1WCAG normal text: Fail

Contrast with black7.06:1WCAG normal text: AAA

Greyscale equivalent#919191

Inverted#A86523

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#7E9DDFno red cones; affects about 1% of men; ΔE 9 from the original

Deuteranopia#6C90DBno green cones; the most common form, about 1% of men; ΔE 10.3 from the original

Tritanopia#00A9B1no blue cones; rare, and affects men and women equally; ΔE 40.3 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text2.97:1WCAG large text: Fail

Contrast with black, large text7.06:1WCAG large text: AAA

Named colours

Steel blue · ΔE 12.5 Cornflower blue · ΔE 14.4 Deep skyblue · ΔE 19.5 Light skyblue · ΔE 23.1 Dodgerblue · ΔE 26.2 Sky blue · ΔE 28.7

Nearest named CSS colourSteel blue (#4682B4)ΔE 12.48, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#DC9957

Analogous#57DCDB, #5758DC

Triadic#DC579A, #9ADC57

Split complementary#DC5758, #DCDC57

Tetradic#DB57DC, #DC9957, #58DC57

Tints, shades & saturation

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

Lighter +40%#FFFFFF

Lighter +30%#D6E6F6

Lighter +20%#ABCDEE

Lighter +10%#81B3E5

Darker −10%#2D81D3

Darker −20%#2367AA

Darker −30%#1B4D7F

Darker −40%#123455

More saturated +25%#3E9AF5

Less saturated −25%#709AC3

Channel breakdown

R87

G154

B220

Red87 (34.1%)

Green154 (60.4%)

Blue220 (86.3%)

Hue209.77°

Saturation (HSL)65.52%

Lightness60.2%

Dominant channelBlue

Hex per channelR 57 · G 9A · B DC

Keep nerding

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#579ADC

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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