Color Conversion
#bd301d
Variations
The purpose of this section is to accurately produce tints (pure white added) and shades (pure black added) of your selected color in 10% increments.
Pro Tip: Use shades for hover states and shadows, tints for highlights and backgrounds.
Shades
Darker variations created by adding black to your base color.
Tints
Lighter variations created by adding white to your base color.
Common Use Cases
- • UI component states (hover, active, disabled)
- • Creating depth with shadows and highlights
- • Building consistent color systems
Design System Tip
These variations form the foundation of a cohesive color palette. Export them to maintain consistency across your entire project.
Color Combinations
Each harmony has its own mood. Use harmonies to brainstorm color combos that work well together.
How to Use
Click on any color to copy its hex value. These combinations are mathematically proven to create visual harmony.
Why It Matters
Color harmonies create balance and evoke specific emotions in your designs.
Complement
A color and its opposite on the color wheel, +180 degrees of hue. High contrast.
Split-complementary
A color and two adjacent to its complement, +/-30 degrees of hue from the value opposite the main color. Bold like a straight complement, but more versatile.
Triadic
Three colors spaced evenly along the color wheel, each 120 degrees of hue apart. Best to allow one color to dominate and use the others as accents.
Analogous
Three colors of the same luminance and saturation with hues that are adjacent on the color wheel, 30 degrees apart. Smooth transitions.
Monochromatic
Three colors of the same hue with luminance values +/-50%. Subtle and refined.
Tetradic
Two sets of complementary colors, separated by 60 degrees of hue.
Color Theory Principles
Balance
Use one dominant color, support with secondary, and accent sparingly.
Contrast
Ensure sufficient contrast for readability and accessibility.
Harmony
Colors should work together to create a unified visual experience.
Color Contrast Checker
Test color combinations to ensure they meet WCAG accessibility standards for text readability.
Text Color
Background Color
Contrast
WCAG Standards
Advanced Contrast Checker
Fine-tune with sliders, multiple previews & more
Everybody is a Genius. But If You Judge a Fish by Its Ability to Climb a Tree, It Will Live Its Whole Life Believing that It is Stupid.
Technical Formats
Practical Formats
Color Analysis
Blindness Simulator
Creative Aspects
Frequently asked questions
- What color is #BD301D?
- #BD301D is Cinnabar Hearth – A warm, tomato-leaning vermilion with an earthy, slightly toasted undertone that reads both vivid and grounded. It evokes intimate heat and confident urgency — like a hearth in a modern kitchen or a bold, sure-footed accent in a room.
- What does Cinnabar Hearth symbolize?
- home and hearth, vitality and appetite, craftsmanship and earthiness, courage and action, heritage or tradition. In China and East Asia, cinnabar-like reds have historical ties to luck, protection and lacquerware; in Western Europe such deep vermilions signaled wealth and military authority (scarlet), while in Latin America similar reds from cochineal express celebration, textiles, and artisanal craft. Across cultures this shade reads as ceremonial and warm, but specific interpretation depends on context and usage.
- Where is Cinnabar Hearth used in design?
- In a space or interface this color increases energy and focus, drawing the eye to focal elements and stimulating appetite or action. Used sparingly it creates intimacy and confidence; used broadly it commands the composition and sets a warm, tactile tone.
- Which colors go well with Cinnabar Hearth?
- Cinnabar Hearth pairs well with #1DB8BD, #E56A2D, #1DBD5A. #1DB8BD: Complementary: a muted teal-cyan that balances the warm red with cool calm, creating high contrast without neon intensity (complementary harmony).. #E56A2D: Analogous: a warm burnt-orange that extends the hue family into sunset tones and strengthens warmth while preserving tonal cohesion (analogous harmony).. #1DBD5A: Triadic: a saturated green that provides energetic counterpoint and vibrant balance for bold brand palettes (triadic harmony)..
- How does Cinnabar Hearth affect mood?
- Warm urgency with grounded familiarity A quickened attention and a sense of approachable intensity. Key traits: passionate, assertive, trust-inspiring in moderation, comforting, attention-grabbing.
- Which industries use Cinnabar Hearth?
- Cinnabar Hearth is commonly used in Artisanal food & beverage (sauces, charcuterie), Premium casual dining and hospitality, Luxury-casual fashion and leather goods. It fits brand archetypes like The Lover, The Craftsman.
- What is the history of Cinnabar Hearth?
- This deep vermilion sits in a long lineage of warm reds first produced from mineral and organic sources: ancient cinnabar (mercury sulfide) yielded bright vermilion in China and Rome; cochineal insects produced carmine in the Americas after pre-Columbian dyeing traditions; and iron oxide earths (red ochres) provided more muted, durable reds for pottery and frescoes. The specific tomato-leaning, slightly browned tone of #BD301D most closely resembles blends artists achieved by tempering vivid vermilions with earth pigments or siennas to add depth.
- How to use Cinnabar Hearth in design?
- Use it sparingly as a focal accent and always ensure strong contrast with text or surround it with warm neutrals to preserve its grounded character. Best practices: Pair BD301D with warm neutrals (EAE6E2 or tan woods) and use it as a focal accent rather than background to maintain readability and reduce visual fatigue.; Use heavy sans-serif weights (600–800) or condensed display serifs for headlines in white or very light neutrals to maximize contrast and brand memorability.; Introduce tactile materials (matte paper, raw ceramics, brushed brass) when using this color in packaging or interiors to amplify its artisanal, hearthlike quality..
- Is Cinnabar Hearth accessible?
- Contrast ratio on white: 5.83:1, on black: 3.60:1. Passes WCAG AA for normal and large text.