Color Temperature Converter

Convert Kelvin (1000K–40000K) to HEX, RGB, HSL and mired, with a CTO/CTB gel calculator for white balance, video LED 5600K and tungsten 3200K work.

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Color Temperature Converter - Translate Kelvin Into Color Values Instantly

Lighting designers, gaffers, photographers, and UI teams often need fast Kelvin-to-color lookups. This converter turns any color temperature between 1,000K and 40,000K into real-world HEX, RGB, HSL, and mired (MK⁻¹) values while highlighting whether the light feels warm, neutral, or cool. The relative-luminance readout helps you check WCAG contrast for accessible interfaces, and the target-Kelvin mired-shift calculator tells gaffers which CTO or CTB correction gel to grab on set. Use it to align brand palettes with lighting environments, preview LED presets, or prep color grading sessions.

How does Kelvin relate to color?

Kelvin (K) measures the color temperature of light. Lower values (2,500K–3,200K) appear warm and amber, mid values (4,500K–6,500K) feel neutral daylight, and higher values (8,000K+) look cool and blue. By converting Kelvin to RGB/HEX we can simulate that light on screens.

What can I do with the conversions?

Copy HEX, RGB, or HSL to style UI themes, 3D renders, lighting guides, or photo color grading LUTs. Use the luminance reading to balance accessibility contrast, and reference the suggested uses to match ambience with your project mood.

Color Temperature Converter — Convert Kelvin (1000K–40000K) to HEX, RGB, HSL and mired, with a CTO/CTB gel calculator for white balance, video LED 560 — **Color Temperature Converter**

Why are the ranges limited?

Most creative workflows sit between 1,000K candlelight and 40,000K bright sky. Outside that range, approximate RGB values become unreliable on SDR displays, so we clamp to realistic lighting temperatures for consistent results.

Key Features

Kelvin input with synchronized slider covering 1,000K to 40,000K
Instant HEX, RGB, and HSL conversion with copy buttons
Warm, neutral, and cool tone detection with usage guidance
Mired (MK⁻¹) output plus CTO/CTB gel calculator for a target Kelvin
Relative luminance calculation for WCAG contrast and accessible design
Color spectrum bar with significant Kelvin milestones
Random Kelvin generator to explore lighting presets quickly
Responsive layout with live preview swatches
Dark mode support with readable swatches
Works entirely client-side for instant feedback