Colour

#63789B

#63789B
Blue
Dark
Nearest: Slate grey

#63789B is a blue with RGB values 99, 120, 155 and HSL 218°, 22%, 50%. It is a dark colour, so black text on it reaches 4.7:1 contrast (AA for normal text). The nearest named colour is Slate grey.

Colour values

#63789B#63789B

HEX#63789B

RGBrgb(99, 120, 155)

RGB (0–1)0.3882, 0.4706, 0.6078

RGB percentages38.8%, 47.1%, 60.8%

HSLhsl(217.5, 22%, 49.8%)

HSV / HSBhsv(217.5, 36.1%, 60.8%)

CMYK36.1%, 22.6%, 0%, 39.2%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer6,518,939

CSS custom property--colour: #63789B;

Brightness & contrast

Relative luminance0.18452WCAG 2.x, 0 is black and 1 is white

Perceived brightness118.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 4.69:1

Contrast with white4.48:1WCAG normal text: Fail

Contrast with black4.69:1WCAG normal text: AA

Greyscale equivalent#767676

Inverted#9C8764

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#6C7A9Dno red cones; affects about 1% of men; ΔE 2.6 from the original

Deuteranopia#66759Ano green cones; the most common form, about 1% of men; ΔE 2.5 from the original

Tritanopia#527F84no blue cones; rare, and affects men and women equally; ΔE 20.6 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text4.48:1WCAG large text: AA

Contrast with black, large text4.69:1WCAG large text: AAA

Named colours

Slate grey · ΔE 11.6 Light slate grey · ΔE 12.3 Steel blue · ΔE 12.4 Gray · ΔE 21.7 Dim grey · ΔE 22.1 Cadetblue · ΔE 27.5

Nearest named CSS colourSlate grey (#708090)ΔE 11.63, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#9B8663

Analogous#63949B, #6A639B

Triadic#9B6378, #789B63

Split complementary#9B6A63, #949B63

Tetradic#9B6394, #9B8663, #639B6A

Tints, shades & saturation

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

Lighter +40%#DFE4EB

Lighter +30%#C0C9D7

Lighter +20%#A1AEC3

Lighter +10%#8293AF

Darker −10%#4F607C

Darker −20%#3B485D

Darker −30%#27303E

Darker −40%#13181F

More saturated +25%#4370BB

Less saturated −25%#7F7F7F

Channel breakdown

R99

G120

B155

Red99 (38.8%)

Green120 (47.1%)

Blue155 (60.8%)

Hue217.5°

Saturation (HSL)22.05%

Lightness49.8%

Dominant channelBlue

Hex per channelR 63 · G 78 · B 9B

Keep nerding

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

#63789B

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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