The wheel is drawn in this browser. On an iPhone, that uses the phone's graphics processor. This site only delivers the page. The sample week below is made up, and the profile is arithmetic on those rows.
The wheel
The equation
H = 24.0°
S = 1, V = 1
C = V × S = 1
X = C × (1 − |(H ÷ 60) mod 2 − 1|)
sRGB = (255, 102, 0)
The shares, in 3D
The sample week
Six made-up rows. Housing is 420 of 725, which is 57.9 percent. That share is at least 0.35, so the profile is housing-led. Debt is 60 and savings is 80. Those cuts are not used once housing already qualifies.sum = 725.00
housing 420.00 (57.9%)
groceries 95.00 (13.1%)
savings 80.00 (11.0%)
debt 60.00 (8.3%)
transport 40.00 (5.5%)
other 30.00 (4.1%)
housing share = 0.5793
debt share = 0.0828
savings share = 0.1103
housing share ≥ 0.35
profile = housing-led
Kalman level of the sample
The same six amounts, in order, through a scalar Kalman filter. Process noise q is 1 and measurement noise r is 25. The filtered level is a smoothed reading of this sample. It is not a forecast about a person, and it is not a result from a quantum computer.q = 1, r = 25
predict: p ← p + q
gain: k = p ÷ (p + r)
update: x ← x + k × (z − x), then p ← (1 − k) × p
z = 420.00 → x = 420.00, k = 1.0000
z = 95.00 → x = 395.93, k = 0.0741
z = 40.00 → x = 359.48, k = 0.1024
z = 60.00 → x = 322.15, k = 0.1246
z = 80.00 → x = 287.92, k = 0.1414
z = 30.00 → x = 248.32, k = 0.1535
filtered level = 248.32
How to use the application
The budget comes with the app. A plan does not need an account.
The Color Lab opens from the calculator toolbar. The app's wheel covers six color systems. This page shows HSV and sRGB, with the equation beside the numbers.
The JSON on this page is a sample, not a bank export. If you link a bank, your own transactions come through Plaid and are stored on our server; the Privacy Policy says what we keep.
SI Money Tracker