Colour

#212D47

#212D47
Blue
Dark
Nearest: Dark slate grey

#212D47 is a blue with RGB values 33, 45, 71 and HSL 221°, 37%, 20%. It is a dark colour, so white text on it reaches 13.7:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#212D47#212D47

HEX#212D47

RGBrgb(33, 45, 71)

RGB (0–1)0.1294, 0.1765, 0.2784

RGB percentages12.9%, 17.6%, 27.8%

HSLhsl(221.1, 36.5%, 20.4%)

HSV / HSBhsv(221.1, 53.5%, 27.8%)

CMYK53.5%, 36.6%, 0%, 72.2%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer2,174,279

CSS custom property--colour: #212D47;

Brightness & contrast

Relative luminance0.02655WCAG 2.x, 0 is black and 1 is white

Perceived brightness45.7 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 13.72:1

Contrast with white13.72:1WCAG normal text: AAA

Contrast with black1.53:1WCAG normal text: Fail

Greyscale equivalent#2C2C2C

Inverted#DED2B8

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#232F48no red cones; affects about 1% of men; ΔE 1.2 from the original

Deuteranopia#1F2C46no green cones; the most common form, about 1% of men; ΔE 0.6 from the original

Tritanopia#113336no blue cones; rare, and affects men and women equally; ΔE 19 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text13.72:1WCAG large text: AAA

Contrast with black, large text1.53:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 24.3 Black · ΔE 26 Dim grey · ΔE 31.5 Dark slateblue · ΔE 35.3 Slate grey · ΔE 35.4 Steel blue · ΔE 37.5

Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 24.26, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#473B21

Analogous#214047, #282147

Triadic#47212D, #2D4721

Split complementary#472821, #404721

Tetradic#472140, #473B21, #214728

Tints, shades & saturation

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

Lighter +40%#758CBF

Lighter +30%#526FAF

Lighter +20%#41598D

Lighter +10%#31436A

Darker −10%#111724

Darker −20%#010101

Darker −30%#000000

Darker −40%#000000

More saturated +25%#142854

Less saturated −25%#2E323A

Channel breakdown

R33

G45

B71

Red33 (12.9%)

Green45 (17.6%)

Blue71 (27.8%)

Hue221.05°

Saturation (HSL)36.54%

Lightness20.39%

Dominant channelBlue

Hex per channelR 21 · G 2D · B 47

Keep nerding

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

#212D47

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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