Brand Guide
Logo, color palette, typography and usage rules. Follow this guide for corporate identity consistency.
Logo variants
The brand ships with 5 SVG variants. Choose by context of use. All vector — no quality loss when scaling.
Lockup — Dark
For dark-background web/print. Landing hero, dark mode panel, social media cover.
Lockup — Light
For light-background web/print. Invoice, email signature, presentation cover.
Mark — Flat
Geometry identical to Mark; the opacity layers are baked into solid colours. For image-generation models, embroidery, screen printing and single-colour printing — contexts where opacity is not preserved.
Kinetic Echo
Three overlapping chevrons — a layered V that evokes motion and speed. The foundation of the brand character.
| Layer | Opacity (Dark) | Opacity (Light) | Color |
|---|---|---|---|
| Echo 1 (back) | 0.20 |
0.25 |
#40C9A2 |
| Echo 2 (middle) | 0.50 |
0.55 |
#40C9A2 |
| Front | 1.00 |
1.00 |
#40C9A2 dark / #0d8a6c light |
Echo offset: 9px (medium density — balanced rhythm between tight 6px and wide 12px).
Generating images with AI
The echo structure gives the brand its character, but it is a structure image-generation models cannot read. That is why the logo breaks when you have a model draw it.
The three chevrons are 36 units wide with an offset of only 9 units — so 75% of each V sits inside the next. The only thing separating them is opacity; same colour, no outline, no gap. Models reproduce an impression, not geometry; with no boundary to hold on to they redraw the mark as “a V inside a V”. On a light ground the back layer's luminance difference drops to 17/255, which makes the problem worse.
With opacity — not suitable for generation
On a light ground the back layers almost vanish. The model invents structure to fill what it cannot see.
Flat — for generation
Same geometry, three solid colours. The boundaries between layers are fixed and independent of the background.
| Layer | With opacity | Flat variant |
|---|---|---|
| Echo 1 (back) | #40C9A2 @ 0.20 | #1E6B55 |
| Echo 2 (middle) | #40C9A2 @ 0.50 | #2B997A |
| Front | #40C9A2 @ 1.00 | #40C9A2 |
- Generate the image without the logo and overlay the real logo afterwards — this is the only correct method
- Ask the prompt to keep the area where the logo will sit clean
- If you must give the model a reference, give it the flat variant and a high-resolution version
- Typeset Turkish text — the characters İ, ğ, ş, ç do not come out consistently in generation
- Don't ask for a logo in the prompt — a second, broken logo will remain under the real one you overlay
- Don't hand over the 58×48 pixel vevona-sig-logo.png as a reference
- Don't publish a model-generated logo, not even with the flat variant — it approximates, it is not exact
- Don't use the flat variant in place of the opacity version on web and in print
Color palette
The brand identity is built on these 6 core colors. Token names are defined as CSS custom properties in vevona.min.css.
Mint Primary
--accentPrimary brand color. All chevrons on dark backgrounds, highlights, CTA buttons.
Mint Dark
— (light bg variant)Front chevron for light backgrounds. High-contrast dark variant of Mint Primary.
Purple Secondary
--accent-2Secondary accent. Hover state, highlight points, iconography.
Ink Background
--bgAgency dark background. Homepage, panel, hero background.
Text Primary
--textPrimary text color on dark backgrounds. High readability, #f4 soft white.
Coral Alert
--redError, warning, destructive actions. Used sparingly — only when attention is needed.
Typography system
Two complementary sans-serifs. Plus Jakarta Sans brings character to headings, Inter delivers readability in small text.
Modern web products, digital strategy and brand experience.
The quick brown fox jumps over the lazy dog. 0123456789
Download: Both typefaces are free on Google Fonts — Plus Jakarta Sans and Inter.
Dos and Don'ts
Follow these rules to preserve logo integrity and brand consistency.
- Leave at least the logo's height as clear space around it
- Keep minimum 24px for Mark, minimum 80px width for lockup
- Use Mint Primary on dark backgrounds, Mint Dark variant on light backgrounds
- Prefer the SVG version — vector scales infinitely
- Preserve Echo layer opacity ratios (0.2 / 0.5 / 1.0)
- Don't have the logo drawn in image generation — overlay it afterwards; see Generating images with AI
- Don't rotate, tilt, stretch or disproportionately scale the logo
- Don't change brand colors — especially gradients or off-brand tones
- Don't add effects like shadows, outlines, or glow to the logo
- Don't use on low-contrast backgrounds (e.g., mint on mint)
- Don't change the opacity or offset of Echo layers
For questions [email protected]
vevona-brand-kit · v1.0 · 2026-09-30