Colour

#2B21B1

#2B21B1
Blue
Dark
Nearest: Dark blue

#2B21B1 is a blue with RGB values 43, 33, 177 and HSL 244°, 69%, 41%. It is a dark colour, so white text on it reaches 10.7:1 contrast (AAA for normal text). The nearest named colour is Dark blue.

Colour values

#2B21B1#2B21B1

HEX#2B21B1

RGBrgb(43, 33, 177)

RGB (0–1)0.1686, 0.1294, 0.6941

RGB percentages16.9%, 12.9%, 69.4%

HSLhsl(244.2, 68.6%, 41.2%)

HSV / HSBhsv(244.2, 81.4%, 69.4%)

CMYK75.7%, 81.4%, 0%, 30.6%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer2,826,673

CSS custom property--colour: #2B21B1;

Brightness & contrast

Relative luminance0.04776WCAG 2.x, 0 is black and 1 is white

Perceived brightness69 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 10.74:1

Contrast with white10.74:1WCAG normal text: AAA

Contrast with black1.96:1WCAG normal text: Fail

Greyscale equivalent#2E2E2E

Inverted#D4DE4E

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#0044B5no red cones; affects about 1% of men; ΔE 24.5 from the original

Deuteranopia#0037AFno green cones; the most common form, about 1% of men; ΔE 16.9 from the original

Tritanopia#004E6Ano blue cones; rare, and affects men and women equally; ΔE 78.9 from the original

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

Contrast with white, large text10.74:1WCAG large text: AAA

Contrast with black, large text1.96:1WCAG large text: Fail

Named colours

Dark blue · ΔE 12.1 Navy · ΔE 15.8 Indigo · ΔE 20.6 Medium blue · ΔE 24.9 Blue violet · ΔE 25.3 Dark orchid · ΔE 26.1

Nearest named CSS colourDark blue (#00008B)ΔE 12.14, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#A7B121

Analogous#215FB1, #7321B1

Triadic#B12B21, #21B12B

Split complementary#B17321, #5FB121

Tetradic#B1215F, #A7B121, #21B173

Tints, shades & saturation

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

Lighter +40%#B3AEF0

Lighter +30%#8A83E8

Lighter +20%#6258E0

Lighter +10%#392DD8

Darker −10%#211986

Darker −20%#16115B

Darker −30%#0C0930

Darker −40%#010105

More saturated +25%#1407CB

Less saturated −25%#423B97

Channel breakdown

R43

G33

B177

Red43 (16.9%)

Green33 (12.9%)

Blue177 (69.4%)

Hue244.17°

Saturation (HSL)68.57%

Lightness41.18%

Dominant channelBlue

Hex per channelR 2B · G 21 · B B1

Keep nerding

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

#2B21B1

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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