Color Temperature Calculator
Convert color temperature values in Kelvin (1000K-10000K) to RGB.
CMYK ↔ RGB ↔ HEX Color Converter
About Color Temperature Calculator
The Color Temperature (Kelvin) to RGB / Hex Calculator maps color temperatures from 1,000K (deep warm candle glow) to 12,000K (cool blue skylight) using Planckian locus blackbody radiation algorithms for lighting design, UI themes, and photography.
How to Use Color Temperature Calculator
Step 1
Drag the Kelvin slider or select a lighting preset.
Step 2
Inspect the live rendered color swatch and color space values.
Step 3
Click "Copy Hex" or "Copy RGB".
Practical Use Cases for Color Temperature Calculator
Simulating Natural Lighting & Smart Bulb Warmth (Kelvin)
Calculate realistic RGB and Hex color values for smart home lighting apps (2700K Warm White, 4000K Neutral, 6500K Daylight).
Building Night Shift & Blue Light Filter UI Themes
Generate warm amber UI background tints simulating blue-light reduction filters for comfortable night reading.
Input & Output Examples
Calculating 2700K Warm White Color
Temperature: `2700K` (Warm Incandescent)
Hex: `#FFB46B` | RGB: `rgb(255, 180, 107)` | Description: Warm Candlelight / Soft White
Key Features & Performance
- ✓Kelvin range: 1,000K (Candle) to 12,000K (Clear Blue Sky).
- ✓Presets: Candle (1850K), Incandescent (2700K), Studio Halogen (3200K), Fluorescent (4000K), Noon Sunlight (5500K), Overcast Daylight (6500K), Blue Sky (10000K).
- ✓Outputs in Hex, RGB, HSL, and CSS Custom Properties.
- ✓100% Client-Side Planckian blackbody algorithm.
- ✓1-Click Copy color code.
Key Terminology & Definitions
Correlated Color Temperature (CCT)
A measure in Kelvin (K) indicating the warmth or coolness of a light source based on the color emitted by an idealized blackbody radiator.
Planckian Locus
The path that the chromaticity coordinates of a blackbody radiator take on a chromaticity diagram as its temperature changes.