The Kelvin brand
The name, mark, colors and type for Kelvin Software. Every color is a real temperature, and the page you're reading uses them.
The thermometer K
The stem is a thermometer. It heats from ember at the bulb to white-hot at the top, the way every project moves from idea to launch. The chevron is the finished thing, at 5,772 K: the color of sunlight.
- 64 px
- 32 px
- 16 px
Lockups
The wordmark is lowercase, the way SI writes the unit name. Its i-dot is the flame at 1,500 K, the same color as the bulb.
Every color is a temperature
Each value is the color of a blackbody at that temperature, computed from Planck's law. Text is only ever 0 K black or sunlight white.
- Zero0 K
#000000Dark backgrounds, ink on light - Draper800 K
#1D0000The first glow - Ember1,400 K
#7C2800Deep warm surfaces - Flame1,500 K
#FF6600Accent, i-dot, bulb - Tungsten2,700 K
#FFAD59Highlights on dark - Halogen4,000 K
#FFD3A5Light surfaces - Sun5,772 K
#FFF1EAInk on dark, light backgrounds - Daylight6,500 K
#FFF8FELightest surface - Sky10,000 K
#CDD9FFCool counterpoint, sparingly
One typeface, two widths
Archivo, a variable grotesque under the SIL Open Font License. Headlines run at its widest setting, like lettering stamped on a furnace plate. Body text runs at normal width.
From absolute zero to reality.
We take an idea that isn't moving yet and ship a working MVP, with AI that runs on the user's own device and cloud models when the job needs them.
0 K 273 K 798 K 2,700 K 5,772 K
How we write
Plain verbs, short sentences
Say what the product does. "Checks who sent the email," not "empowers email trust."
Physics is seasoning
One temperature fact can land a point. Three in a paragraph is a lecture.
Show it working
A prototype, a screenshot, a live link. Claims come after proof.
Calm about AI
Name the model and where it runs. Skip the hype words.
Using the mark
- Write 0 K, never 0 °K. Kelvin takes no degree sign.
- Keep the mark on its black tile, on any background.
- Don't recolor, rotate or outline the thermometer or the chevron.
- Leave clear space at least the width of the bulb on every side.
- Smallest sizes: the mark at 16 px, the lockup at 96 px wide.
