Colour

#212B47

#212B47
Blue
Dark
Nearest: Dark slate grey

#212B47 is a blue with RGB values 33, 43, 71 and HSL 224°, 37%, 20%. It is a dark colour, so white text on it reaches 14:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#212B47#212B47

HEX#212B47

RGBrgb(33, 43, 71)

RGB (0–1)0.1294, 0.1686, 0.2784

RGB percentages12.9%, 16.9%, 27.8%

HSLhsl(224.2, 36.5%, 20.4%)

HSV / HSBhsv(224.2, 53.5%, 27.8%)

CMYK53.5%, 39.4%, 0%, 72.2%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer2,173,767

CSS custom property--colour: #212B47;

Brightness & contrast

Relative luminance0.02506WCAG 2.x, 0 is black and 1 is white

Perceived brightness44.6 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 13.99:1

Contrast with white13.99:1WCAG normal text: AAA

Contrast with black1.5:1WCAG normal text: Fail

Greyscale equivalent#2B2B2B

Inverted#DED4B8

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#212E48no red cones; affects about 1% of men; ΔE 2.3 from the original

Deuteranopia#1D2A46no green cones; the most common form, about 1% of men; ΔE 1.1 from the original

Tritanopia#123135no blue cones; rare, and affects men and women equally; ΔE 19.6 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text13.99:1WCAG large text: AAA

Contrast with black, large text1.5:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 26.1 Black · ΔE 26.5 Dim grey · ΔE 32.9 Dark slateblue · ΔE 34 Slate grey · ΔE 36.5 Steel blue · ΔE 38.1

Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 26.11, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#473D21

Analogous#213E47, #2A2147

Triadic#47212B, #2B4721

Split complementary#472A21, #3E4721

Tetradic#47213E, #473D21, #21472A

Tints, shades & saturation

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

Lighter +40%#7589BF

Lighter +30%#526BAF

Lighter +20%#41558D

Lighter +10%#31406A

Darker −10%#111624

Darker −20%#010101

Darker −30%#000000

Darker −40%#000000

More saturated +25%#142554

Less saturated −25%#2E313A

Channel breakdown

R33

G43

B71

Red33 (12.9%)

Green43 (16.9%)

Blue71 (27.8%)

Hue224.21°

Saturation (HSL)36.54%

Lightness20.39%

Dominant channelBlue

Hex per channelR 21 · G 2B · B 47

Keep nerding

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

#212B47

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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