Recognised as Colour

#216CB0

#216CB0
Blue
Dark
Nearest: Steel blue

#216CB0 is a blue with RGB values 33, 108, 176 and HSL 209°, 68%, 41%. It is a dark colour, so white text on it reaches 5.5:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#216CB0#216CB0

HEX#216CB0

RGBrgb(33, 108, 176)

RGB (0–1)0.1294, 0.4235, 0.6902

RGB percentages12.9%, 42.4%, 69%

HSLhsl(208.5, 68.4%, 41%)

HSV / HSBhsv(208.5, 81.3%, 69%)

CMYK81.3%, 38.6%, 0%, 31%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer2,190,512

CSS custom property--colour: #216CB0;

Brightness & contrast

Relative luminance0.14183WCAG 2.x, 0 is black and 1 is white

Perceived brightness103.5 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.47:1

Contrast with white5.47:1WCAG normal text: AA

Contrast with black3.84:1WCAG normal text: Fail

Greyscale equivalent#616161

Inverted#DE934F

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#4B70B3no red cones; affects about 1% of men; ΔE 6.7 from the original

Deuteranopia#3563AFno green cones; the most common form, about 1% of men; ΔE 8.6 from the original

Tritanopia#007C85no blue cones; rare, and affects men and women equally; ΔE 40.2 from the original

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

Contrast with white, large text5.47:1WCAG large text: AAA

Contrast with black, large text3.84:1WCAG large text: AA

Named colours

Steel blue · ΔE 14.5 Cornflower blue · ΔE 20 Dodgerblue · ΔE 26.8 Dark slateblue · ΔE 27.5 Royal blue · ΔE 33.3 Slate grey · ΔE 33.3

Nearest named CSS colourSteel blue (#4682B4)ΔE 14.48, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#B06521

Analogous#21B0AD, #2124B0

Triadic#B0216C, #6CB021

Split complementary#B02124, #B0AD21

Tetradic#AD21B0, #B06521, #24B021

Tints, shades & saturation

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

Lighter +40%#ADD0F0

Lighter +30%#82B7E8

Lighter +20%#579FE0

Lighter +10%#2C86D8

Darker −10%#195285

Darker −20%#11375A

Darker −30%#091D2F

Darker −40%#010304

More saturated +25%#076DCA

Less saturated −25%#3B6B96

Channel breakdown

R33

G108

B176

Red33 (12.9%)

Green108 (42.4%)

Blue176 (69%)

Hue208.53°

Saturation (HSL)68.42%

Lightness40.98%

Dominant channelBlue

Hex per channelR 21 · G 6C · B B0

Keep nerding

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

#216CB0

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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