Colour

#0045C9

#0045C9
Blue
Dark
Nearest: Royal blue

#0045C9 is a blue with RGB values 0, 69, 201 and HSL 219°, 100%, 39%. It is a dark colour, so white text on it reaches 7.8:1 contrast (AAA for normal text). The nearest named colour is Royal blue.

Colour values

#0045C9#0045C9

HEX#0045C9

RGBrgb(0, 69, 201)

RGB (0–1)0, 0.2706, 0.7882

RGB percentages0%, 27.1%, 78.8%

HSLhsl(219.4, 100%, 39.4%)

HSV / HSBhsv(219.4, 100%, 78.8%)

CMYK100%, 65.7%, 0%, 21.2%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer17,865

CSS custom property--colour: #0045C9;

Brightness & contrast

Relative luminance0.08473WCAG 2.x, 0 is black and 1 is white

Perceived brightness86 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 7.79:1

Contrast with white7.79:1WCAG normal text: AAA

Contrast with black2.69:1WCAG normal text: Fail

Greyscale equivalent#404040

Inverted#FFBA36

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#005BCDno red cones; affects about 1% of men; ΔE 16.2 from the original

Deuteranopia#004AC7no green cones; the most common form, about 1% of men; ΔE 5.1 from the original

Tritanopia#006981no blue cones; rare, and affects men and women equally; ΔE 74 from the original

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

Contrast with white, large text7.79:1WCAG large text: AAA

Contrast with black, large text2.69:1WCAG large text: Fail

Named colours

Royal blue · ΔE 17.6 Slate blue · ΔE 18.1 Medium slateblue · ΔE 19.4 Dark blue · ΔE 25.2 Navy · ΔE 26.1 Rebecca purple · ΔE 26.5

Nearest named CSS colourRoyal blue (#4169E1)ΔE 17.63, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#C98400

Analogous#00A9C9, #2000C9

Triadic#C90045, #45C900

Split complementary#C92000, #A9C900

Tetradic#C900A9, #C98400, #00C920

Tints, shades & saturation

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

Lighter +40%#96BAFF

Lighter +30%#6399FF

Lighter +20%#3077FF

Lighter +10%#0057FC

Darker −10%#003396

Darker −20%#002263

Darker −30%#001030

Darker −40%#000000

More saturated +25%#0045C9

Less saturated −25%#194DB0

Channel breakdown

G69

B201

Red0 (0%)

Green69 (27.1%)

Blue201 (78.8%)

Hue219.4°

Saturation (HSL)100%

Lightness39.41%

Dominant channelBlue

Hex per channelR 00 · G 45 · B C9

Keep nerding

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

#0045C9

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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