Colour

#0663BD

#0663BD
Blue
Dark
Nearest: Royal blue

#0663BD is a blue with RGB values 6, 99, 189 and HSL 210°, 94%, 38%. It is a dark colour, so white text on it reaches 6:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#0663BD#0663BD

HEX#0663BD

RGBrgb(6, 99, 189)

RGB (0–1)0.0235, 0.3882, 0.7412

RGB percentages2.4%, 38.8%, 74.1%

HSLhsl(209.5, 93.8%, 38.2%)

HSV / HSBhsv(209.5, 96.8%, 74.1%)

CMYK96.8%, 47.6%, 0%, 25.9%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer418,749

CSS custom property--colour: #0663BD;

Brightness & contrast

Relative luminance0.12637WCAG 2.x, 0 is black and 1 is white

Perceived brightness99.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.95:1

Contrast with white5.95:1WCAG normal text: AA

Contrast with black3.53:1WCAG normal text: Fail

Greyscale equivalent#565656

Inverted#F99C42

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#2E6CC0no red cones; affects about 1% of men; ΔE 5.6 from the original

Deuteranopia#005DBBno green cones; the most common form, about 1% of men; ΔE 4 from the original

Tritanopia#007987no blue cones; rare, and affects men and women equally; ΔE 51.4 from the original

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

Contrast with white, large text5.95:1WCAG large text: AAA

Contrast with black, large text3.53:1WCAG large text: AA

Named colours

Royal blue · ΔE 19.6 Dodgerblue · ΔE 19.7 Cornflower blue · ΔE 20.3 Dark slateblue · ΔE 21.9 Slate blue · ΔE 25.2 Steel blue · ΔE 28.5

Nearest named CSS colourRoyal blue (#4169E1)ΔE 19.61, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#BD6006

Analogous#06BDBC, #0607BD

Triadic#BD0663, #63BD06

Split complementary#BD0607, #BDBC06

Tetradic#BC06BD, #BD6006, #07BD06

Tints, shades & saturation

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

Lighter +40%#93C8FC

Lighter +30%#62AFFA

Lighter +20%#3196F8

Lighter +10%#087DEE

Darker −10%#04498C

Darker −20%#032F5A

Darker −30%#011529

Darker −40%#000000

More saturated +25%#0063C3

Less saturated −25%#1E63A5

Channel breakdown

G99

B189

Red6 (2.4%)

Green99 (38.8%)

Blue189 (74.1%)

Hue209.51°

Saturation (HSL)93.85%

Lightness38.24%

Dominant channelBlue

Hex per channelR 06 · G 63 · B BD

Keep nerding

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

#0663BD

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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