
Light background
Addo Sign logo.png
The preferred logo version for white and light neutral backgrounds.
The Addo Sign logo is the primary visual identifier of our brand. It should always be presented clearly, consistently and with sufficient contrast and surrounding space.
Use the standard logo on light backgrounds and the white logo on dark backgrounds. Always choose the version that provides the clearest contrast.

Addo Sign logo.png
The preferred logo version for white and light neutral backgrounds.

Addo Sign logo - white.png
Used on graphite backgrounds and other sufficiently dark surfaces.
Use only the approved logo assets shown below. Do not recreate, recolor or modify the logo manually.

Addo Sign logo.png
Use the full logo whenever there is sufficient horizontal space.
Download PNG
Addo Sign logo - white.png
Use on dark surfaces where the standard logo lacks contrast.
Download PNG
logo-single.png
Use when space is limited or where the Addo Sign brand is already clearly established.
Download PNGMaintain sufficient clear space around the logo so that it remains distinct from nearby text, images and interface elements.

No text, imagery, borders or interface elements should enter the defined clear-space area around the logo.
Never reproduce the logo below the recommended minimum width. At very small sizes, use the symbol instead of the full logo.
Recommended minimum width: 120px.
Recommended minimum size: 32 × 32px.
Consistent logo use builds recognition and trust. Avoid modifications that weaken the logo's appearance or legibility.

Always preserve the original proportions.

The logo should always appear horizontally.

Use only the approved logo versions.

Avoid shadows, outlines and other visual effects.
<img
src="https://www.addosign.com/hubfs/Addo%20Sign%20logo/Addo%20Sign%20logo.png"
alt="Addo Sign"
width="180"
height="auto"
>
Addo Sign uses a clear and confident typography system designed to make complex information easier to understand across marketing, documentation and digital experiences.
Stack Sans Headline creates distinction and confidence, while Stack Sans Text provides clarity and readability in longer content.
--font-family-heading
Used for display text, headings and prominent short-form messages.
--font-family-body
Used for paragraphs, descriptions, navigation, buttons and supporting information.
--font-family-mono
Used for design tokens, code examples and technical references.
Heading sizes use responsive values where appropriate. The font size scales smoothly between its minimum and maximum value.
--heading-display-size --heading-display-line-height 48–66px · 1.05 --heading-1-size --heading-1-line-height 35–48px · 1.1 --heading-2-size --heading-2-line-height 30–40px · 1.15 --heading-3-size --heading-3-line-height 24–32px · 1.2 --heading-4-size --heading-4-line-height 20–24px · 1.25 --heading-5-size --heading-5-line-height 18–20px · 1.3 --heading-6-size --heading-6-line-height 16px · 1.35 Body styles create a clear hierarchy between introductions, standard content and supporting information.
--lead-size --lead-line-height 18–20px · 1.5 Make contracts, approvals and document processes simpler with one secure digital signing platform.
--body-size --body-line-height 17px · 1.6 Addo Sign helps organisations manage agreements and signing workflows more efficiently. Documents can be prepared, distributed, signed and stored through one connected process.
--body-small-size --body-small-line-height 15px · 1.5 Used for metadata, captions, supplementary descriptions, labels and other supporting information.
Use weight intentionally to create hierarchy. Avoid using bold text extensively inside longer paragraphs.
--font-weight-regular--font-weight-medium--font-weight-semibold--font-weight-boldh1,
.h1 {
font-size: var(--heading-1-size);
font-weight: var(--font-weight-bold);
line-height: var(--heading-1-line-height);
}
.lead {
font-size: var(--lead-size);
font-weight: var(--font-weight-regular);
line-height: var(--lead-line-height);
}
.body-small {
font-size: var(--body-small-size);
line-height: var(--body-small-line-height);
}
Addo Sign uses orange as the primary brand color, supported by blue, green, graphite, red and neutral colors.
Used for primary actions, highlights and important brand moments.
--addo-orange-100 #FFE0C2--addo-orange-200 #FF9A4A--addo-orange-300 #FF6418--addo-orange-400 #C25412--addo-orange-500 #8A3C0D--addo-blue-100 #DCEFF9--addo-blue-200 #00A0E6--addo-blue-300 #0085C2--addo-blue-400 #00658F--addo-blue-500 #003F5A--addo-green-100 #EDF7F1--addo-green-200 #BBDFC2--addo-green-300 #6EB984--addo-green-400 #3F8A58--addo-green-500 #285A39--addo-red-100 #FBECEC--addo-red-200 #F2B7B7--addo-red-300 #D95C5C--addo-red-400 #B33F3F--addo-red-500 #7A2424--addo-graphite-100 #2D2F32--addo-graphite-200 #1F2022--addo-graphite-300 #18191B--addo-white #FFFFFF--addo-grey #DFDFDFButtons are used to communicate actions and guide users through the Addo Sign experience. Use the primary button for the most important action and supporting variants for secondary choices.
Choose a variant based on the importance of the action and the background on which the button is placed.
.in-btn
.in-btn--filled-dark
Used for the primary action on a page or within a component.
.in-btn
.in-btn--filled
Used on dark or colored surfaces where a light action is needed.
.in-btn
.in-btn--outlined-dark
Used for secondary actions that should remain visible without competing with the primary button.
The medium button is the default size used by existing HubSpot theme components. Small and large sizes may be used in custom modules.
.in-btn--small.in-btn.in-btn--largeModifier classes can be combined with button variants and sizes without changing their visual hierarchy.
.in-btn--full
Expands the button to fill the available width of its container.
.in-btn--arrow
Adds a responsive arrow icon that follows the selected button size.
.in-btn--full
.in-btn--arrow
Suitable for cards, navigation panels and prominent content links.
<a
href="#"
class="in-btn in-btn--filled-dark in-btn--large in-btn--arrow"
>
<span class="in-btn__text">Get started</span>
</a>