Colour

#1864DB

#1864DB
Blue
Dark
Nearest: Royal blue

#1864DB is a blue with RGB values 24, 100, 219 and HSL 217°, 80%, 48%. It is a dark colour, so white text on it reaches 5.4:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#1864DB#1864DB

HEX#1864DB

RGBrgb(24, 100, 219)

RGB (0–1)0.0941, 0.3922, 0.8588

RGB percentages9.4%, 39.2%, 85.9%

HSLhsl(216.6, 80.2%, 47.6%)

HSV / HSBhsv(216.6, 89%, 85.9%)

CMYK89%, 54.3%, 0%, 14.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer1,598,683

CSS custom property--colour: #1864DB;

Brightness & contrast

Relative luminance0.14423WCAG 2.x, 0 is black and 1 is white

Perceived brightness107.3 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.41:1

Contrast with white5.41:1WCAG normal text: AA

Contrast with black3.88:1WCAG normal text: Fail

Greyscale equivalent#5C5C5C

Inverted#E79B24

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#0073DFno red cones; affects about 1% of men; ΔE 10.8 from the original

Deuteranopia#0062D9no green cones; the most common form, about 1% of men; ΔE 1.1 from the original

Tritanopia#008296no blue cones; rare, and affects men and women equally; ΔE 66.2 from the original

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

Contrast with white, large text5.41:1WCAG large text: AAA

Contrast with black, large text3.88:1WCAG large text: AA

Named colours

Royal blue · ΔE 4.4 Slate blue · ΔE 15.5 Medium slateblue · ΔE 19.2 Dodgerblue · ΔE 20.1 Medium purple · ΔE 23.7 Cornflower blue · ΔE 28.2

Nearest named CSS colourRoyal blue (#4169E1)ΔE 4.41, a close match

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#DB8F18

Analogous#18C5DB, #2E18DB

Triadic#DB1864, #64DB18

Split complementary#DB2E18, #C5DB18

Tetradic#DB18C5, #DB8F18, #18DB2E

Tints, shades & saturation

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

Lighter +40%#C6DAF9

Lighter +30%#98BCF4

Lighter +20%#6A9EEF

Lighter +10%#3C80EA

Darker −10%#134FAD

Darker −20%#0E3A7F

Darker −30%#092551

Darker −40%#041023

More saturated +25%#005FF3

Less saturated −25%#366BBD

Channel breakdown

R24

G100

B219

Red24 (9.4%)

Green100 (39.2%)

Blue219 (85.9%)

Hue216.62°

Saturation (HSL)80.25%

Lightness47.65%

Dominant channelBlue

Hex per channelR 18 · G 64 · B DB

Keep nerding

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

#1864DB

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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