Colour

#0051AC

#0051AC
Blue
Dark
Nearest: Dark slateblue

#0051AC is a blue with RGB values 0, 81, 172 and HSL 212°, 100%, 34%. It is a dark colour, so white text on it reaches 7.6:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#0051AC#0051AC

HEX#0051AC

RGBrgb(0, 81, 172)

RGB (0–1)0, 0.3176, 0.6745

RGB percentages0%, 31.8%, 67.5%

HSLhsl(211.7, 100%, 33.7%)

HSV / HSBhsv(211.7, 100%, 67.5%)

CMYK100%, 52.9%, 0%, 32.5%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer20,908

CSS custom property--colour: #0051AC;

Brightness & contrast

Relative luminance0.08863WCAG 2.x, 0 is black and 1 is white

Perceived brightness85 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 7.57:1

Contrast with white7.57:1WCAG normal text: AAA

Contrast with black2.77:1WCAG normal text: Fail

Greyscale equivalent#464646

Inverted#FFAE53

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#075BAFno red cones; affects about 1% of men; ΔE 7 from the original

Deuteranopia#004DAAno green cones; the most common form, about 1% of men; ΔE 2.5 from the original

Tritanopia#006876no blue cones; rare, and affects men and women equally; ΔE 53.5 from the original

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

Contrast with white, large text7.57:1WCAG large text: AAA

Contrast with black, large text2.77:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 16.5 Royal blue · ΔE 19.2 Slate blue · ΔE 22.4 Midnight blue · ΔE 25.7 Dodgerblue · ΔE 26.1 Cornflower blue · ΔE 27.5

Nearest named CSS colourDark slateblue (#483D8B)ΔE 16.48, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#AC5B00

Analogous#00A7AC, #0500AC

Triadic#AC0051, #51AC00

Split complementary#AC0500, #A7AC00

Tetradic#AC00A7, #AC5B00, #00AC05

Tints, shades & saturation

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

Lighter +40%#79B8FF

Lighter +30%#469DFF

Lighter +20%#1382FF

Lighter +10%#0069DF

Darker −10%#003979

Darker −20%#002146

Darker −30%#000913

Darker −40%#000000

More saturated +25%#0051AC

Less saturated −25%#165297

Channel breakdown

G81

B172

Red0 (0%)

Green81 (31.8%)

Blue172 (67.5%)

Hue211.74°

Saturation (HSL)100%

Lightness33.73%

Dominant channelBlue

Hex per channelR 00 · G 51 · B AC

Keep nerding

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

#0051AC

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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