Recognised as Colour

#166FDC

#166FDC
Blue
Dark
Nearest: Royal blue

#166FDC is a blue with RGB values 22, 111, 220 and HSL 213°, 82%, 47%. It is a dark colour, so white text on it reaches 4.8:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#166FDC#166FDC

HEX#166FDC

RGBrgb(22, 111, 220)

RGB (0–1)0.0863, 0.4353, 0.8627

RGB percentages8.6%, 43.5%, 86.3%

HSLhsl(213, 81.8%, 47.5%)

HSV / HSBhsv(213, 90%, 86.3%)

CMYK90%, 49.5%, 0%, 13.7%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer1,470,428

CSS custom property--colour: #166FDC;

Brightness & contrast

Relative luminance0.16707WCAG 2.x, 0 is black and 1 is white

Perceived brightness113.6 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 4.84:1

Contrast with white4.84:1WCAG normal text: AA

Contrast with black4.34:1WCAG normal text: Fail

Greyscale equivalent#646464

Inverted#E99023

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#297BE0no red cones; affects about 1% of men; ΔE 7.4 from the original

Deuteranopia#006ADAno green cones; the most common form, about 1% of men; ΔE 3 from the original

Tritanopia#008A9Bno blue cones; rare, and affects men and women equally; ΔE 61 from the original

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

Contrast with white, large text4.84:1WCAG large text: AAA

Contrast with black, large text4.34:1WCAG large text: AA

Named colours

Royal blue · ΔE 10.1 Dodgerblue · ΔE 13.3 Slate blue · ΔE 20.1 Cornflower blue · ΔE 20.5 Medium purple · ΔE 24.7 Medium slateblue · ΔE 25

Nearest named CSS colourRoyal blue (#4169E1)ΔE 10.06, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#DC8316

Analogous#16D2DC, #2016DC

Triadic#DC166F, #6FDC16

Split complementary#DC2016, #D2DC16

Tetradic#DC16D2, #DC8316, #16DC20

Tints, shades & saturation

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

Lighter +40%#C5DCF9

Lighter +30%#96C1F5

Lighter +20%#68A5F0

Lighter +10%#3A8AEB

Darker −10%#1158AE

Darker −20%#0D407F

Darker −30%#082951

Darker −40%#031123

More saturated +25%#006DF2

Less saturated −25%#3472BE

Channel breakdown

R22

G111

B220

Red22 (8.6%)

Green111 (43.5%)

Blue220 (86.3%)

Hue213.03°

Saturation (HSL)81.82%

Lightness47.45%

Dominant channelBlue

Hex per channelR 16 · G 6F · B DC

Keep nerding

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

#166FDC

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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