Colour

#212D55

#212D55
Blue
Dark
Nearest: Dark slateblue

#212D55 is a blue with RGB values 33, 45, 85 and HSL 226°, 44%, 23%. It is a dark colour, so white text on it reaches 13.4:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#212D55#212D55

HEX#212D55

RGBrgb(33, 45, 85)

RGB (0–1)0.1294, 0.1765, 0.3333

RGB percentages12.9%, 17.6%, 33.3%

HSLhsl(226.2, 44.1%, 23.1%)

HSV / HSBhsv(226.2, 61.2%, 33.3%)

CMYK61.2%, 47.1%, 0%, 66.7%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer2,174,293

CSS custom property--colour: #212D55;

Brightness & contrast

Relative luminance0.02856WCAG 2.x, 0 is black and 1 is white

Perceived brightness48.4 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 13.37:1

Contrast with white13.37:1WCAG normal text: AAA

Contrast with black1.57:1WCAG normal text: Fail

Greyscale equivalent#2D2D2D

Inverted#DED2AA

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#1C3257no red cones; affects about 1% of men; ΔE 4.3 from the original

Deuteranopia#152D54no green cones; the most common form, about 1% of men; ΔE 3.1 from the original

Tritanopia#03363Cno blue cones; rare, and affects men and women equally; ΔE 28.1 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text13.37:1WCAG large text: AAA

Contrast with black, large text1.57:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 26.3 Dark slate grey · ΔE 32.4 Midnight blue · ΔE 33.2 Black · ΔE 33.5 Steel blue · ΔE 35.9 Dim grey · ΔE 37

Nearest named CSS colourDark slateblue (#483D8B)ΔE 26.31, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#554921

Analogous#214755, #2F2155

Triadic#55212D, #2D5521

Split complementary#552F21, #475521

Tetradic#552147, #554921, #21552F

Tints, shades & saturation

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

Lighter +40%#788BCA

Lighter +30%#536BBC

Lighter +20%#3E549E

Lighter +10%#2F407A

Darker −10%#131A30

Darker −20%#04060C

Darker −30%#000000

Darker −40%#000000

More saturated +25%#122564

Less saturated −25%#303546

Channel breakdown

R33

G45

B85

Red33 (12.9%)

Green45 (17.6%)

Blue85 (33.3%)

Hue226.15°

Saturation (HSL)44.07%

Lightness23.14%

Dominant channelBlue

Hex per channelR 21 · G 2D · B 55

Keep nerding

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

#212D55

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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