Colour

#0057C3

#0057C3
Blue
Dark
Nearest: Royal blue

#0057C3 is a blue with RGB values 0, 87, 195 and HSL 213°, 100%, 38%. It is a dark colour, so white text on it reaches 6.7:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#0057C3#0057C3

HEX#0057C3

RGBrgb(0, 87, 195)

RGB (0–1)0, 0.3412, 0.7647

RGB percentages0%, 34.1%, 76.5%

HSLhsl(213.2, 100%, 38.2%)

HSV / HSBhsv(213.2, 100%, 76.5%)

CMYK100%, 55.4%, 0%, 23.5%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer22,467

CSS custom property--colour: #0057C3;

Brightness & contrast

Relative luminance0.10757WCAG 2.x, 0 is black and 1 is white

Perceived brightness93.7 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 6.66:1

Contrast with white6.66:1WCAG normal text: AA

Contrast with black3.15:1WCAG normal text: Fail

Greyscale equivalent#4C4C4C

Inverted#FFA83C

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#0065C7no red cones; affects about 1% of men; ΔE 9.8 from the original

Deuteranopia#0055C1no green cones; the most common form, about 1% of men; ΔE 0.9 from the original

Tritanopia#007284no blue cones; rare, and affects men and women equally; ΔE 61.3 from the original

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

Contrast with white, large text6.66:1WCAG large text: AAA

Contrast with black, large text3.15:1WCAG large text: AA

Named colours

Royal blue · ΔE 10.3 Slate blue · ΔE 16.4 Dark slateblue · ΔE 22.3 Dodgerblue · ΔE 23.3 Medium slateblue · ΔE 23.7 Medium purple · ΔE 25.1

Nearest named CSS colourRoyal blue (#4169E1)ΔE 10.34, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#C36C00

Analogous#00B8C3, #0B00C3

Triadic#C30057, #57C300

Split complementary#C30A00, #B8C300

Tetradic#C300B8, #C36C00, #00C30A

Tints, shades & saturation

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

Lighter +40%#90C2FF

Lighter +30%#5DA5FF

Lighter +20%#2A89FF

Lighter +10%#006EF6

Darker −10%#004090

Darker −20%#00295D

Darker −30%#00132A

Darker −40%#000000

More saturated +25%#0057C3

Less saturated −25%#185AAB

Channel breakdown

G87

B195

Red0 (0%)

Green87 (34.1%)

Blue195 (76.5%)

Hue213.23°

Saturation (HSL)100%

Lightness38.24%

Dominant channelBlue

Hex per channelR 00 · G 57 · B C3

Keep nerding

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

#0057C3

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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