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Recognised as Colour

#2B43AA

  • #2B43AA
  • Blue
  • Dark
  • Nearest: Slate blue

#2B43AA is a blue with RGB values 43, 67, 170 and HSL 229°, 60%, 42%. It is a dark colour, so white text on it reaches 8.4:1 contrast (AAA for normal text). The nearest named colour is Slate blue.

Colour values

#2B43AA#2B43AA
HEX#2B43AA
RGBrgb(43, 67, 170)
RGB (0–1)0.1686, 0.2627, 0.6667
RGB percentages16.9%, 26.3%, 66.7%
HSLhsl(228.7, 59.6%, 41.8%)
HSV / HSBhsv(228.7, 74.7%, 66.7%)
CMYK74.7%, 60.6%, 0%, 33.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,835,370
CSS custom property--colour: #2B43AA;

Brightness & contrast

Relative luminance0.0743WCAG 2.x, 0 is black and 1 is white
Perceived brightness80.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.45:1
Contrast with white8.45:1WCAG normal text: AAA
Contrast with black2.49:1WCAG normal text: Fail
Greyscale equivalent#454545
Inverted#D4BC55

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0053ADno red cones; affects about 1% of men; ΔE 13.8 from the original
Deuteranopia#0047A8no green cones; the most common form, about 1% of men; ΔE 6.6 from the original
Tritanopia#005D70no blue cones; rare, and affects men and women equally; ΔE 59.8 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text8.45:1WCAG large text: AAA
Contrast with black, large text2.49:1WCAG large text: Fail

Named colours

Slate blue · ΔE 15Dark slateblue · ΔE 16Royal blue · ΔE 16.9Rebecca purple · ΔE 18.5Midnight blue · ΔE 19.2Medium slateblue · ΔE 24.6
Nearest named CSS colourSlate blue (#6A5ACD)ΔE 15, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#AA922B
Analogous#2B83AA, #522BAA
Triadic#AA2B43, #43AA2B
Split complementary#AA522B, #83AA2B
Tetradic#AA2B83, #AA922B, #2BAA52

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#B5BFEC
Lighter +30%#8C9CE2
Lighter +20%#6379D8
Lighter +10%#3B56CD
Darker −10%#213381
Darker −20%#162359
Darker −30%#0C1330
Darker −40%#020307
More saturated +25%#1032C5
Less saturated −25%#46548F

Channel breakdown

R43
G67
B170
Red43 (16.9%)
Green67 (26.3%)
Blue170 (66.7%)
Hue228.66°
Saturation (HSL)59.62%
Lightness41.76%
Dominant channelBlue
Hex per channelR 2B · G 43 · B AA

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Every value on this page was computed from “2b43aa” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.