Colour

#0043B7

#0043B7
Blue
Dark
Nearest: Royal blue

#0043B7 is a blue with RGB values 0, 67, 183 and HSL 218°, 100%, 36%. It is a dark colour, so white text on it reaches 8.4:1 contrast (AAA for normal text). The nearest named colour is Royal blue.

Colour values

#0043B7#0043B7

HEX#0043B7

RGBrgb(0, 67, 183)

RGB (0–1)0, 0.2627, 0.7176

RGB percentages0%, 26.3%, 71.8%

HSLhsl(218, 100%, 35.9%)

HSV / HSBhsv(218, 100%, 71.8%)

CMYK100%, 63.4%, 0%, 28.2%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer17,335

CSS custom property--colour: #0043B7;

Brightness & contrast

Relative luminance0.07433WCAG 2.x, 0 is black and 1 is white

Perceived brightness80.3 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 8.45:1

Contrast with white8.45:1WCAG normal text: AAA

Contrast with black2.49:1WCAG normal text: Fail

Greyscale equivalent#3D3D3D

Inverted#FFBC48

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#0055BBno red cones; affects about 1% of men; ΔE 13.2 from the original

Deuteranopia#0045B5no green cones; the most common form, about 1% of men; ΔE 2.8 from the original

Tritanopia#006276no blue cones; rare, and affects men and women equally; ΔE 66.8 from the original

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

Contrast with white, large text8.45:1WCAG large text: AAA

Contrast with black, large text2.49:1WCAG large text: Fail

Named colours

Royal blue · ΔE 15.5 Slate blue · ΔE 16 Medium slateblue · ΔE 22.3 Rebecca purple · ΔE 22.5 Midnight blue · ΔE 23.4 Dark slateblue · ΔE 24

Nearest named CSS colourRoyal blue (#4169E1)ΔE 15.54, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#B77400

Analogous#009FB7, #1800B7

Triadic#B70043, #43B700

Split complementary#B71800, #9FB700

Tetradic#B7009F, #B77400, #00B718

Tints, shades & saturation

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

Lighter +40%#84B1FF

Lighter +30%#5191FF

Lighter +20%#1E70FF

Lighter +10%#0056EA

Darker −10%#003084

Darker −20%#001E51

Darker −30%#000B1E

Darker −40%#000000

More saturated +25%#0043B7

Less saturated −25%#1749A0

Channel breakdown

G67

B183

Red0 (0%)

Green67 (26.3%)

Blue183 (71.8%)

Hue218.03°

Saturation (HSL)100%

Lightness35.88%

Dominant channelBlue

Hex per channelR 00 · G 43 · B B7

Keep nerding

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#0043B7

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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