Temperature Adjustment in One Sentence
Warm up or cool down a photo, fix green casts with subtle Tint, and keep exposure stable with Luma Preservation — with optional shadow/highlight targeting and full-res export.
When to Use Temperature and When to Touch Tint
Temperature is for mood and white-balance feel
Use Temperature when your image:
- looks too cold (blue-ish) and needs warmth
- looks too warm (yellow/orange) and needs cooling
- needs a quick “golden hour” or “overcast” mood shift
- came from mixed lighting and feels slightly off
Tint is here to fix green casts
Tint exists for one practical reason: correcting greens.
You’ll most often use it when:
- indoor lighting introduces a subtle green cast
- fluorescent / mixed lighting makes skin tones look sickly
- neutral grays look slightly green
Rule of thumb: Keep Tint changes small. If you need huge Tint shifts, the issue is usually bigger than tint alone (lighting mix, wrong exposure, or extreme color cast).
How to Use
1. Upload an image
Drag & drop, paste (Ctrl/⌘+V), or click to select JPEG / PNG / WebP.
2. Set Temperature
- 100% = neutral
- lower values = cooler
- higher values = warmer
Start with a small move:
- Cool a warm cast: 80–95
- Warm a cool cast: 105–130
3. Fix greens with Tint (optional)
Tint is centered at 100% neutral:
- below 100 leans green
- above 100 leans magenta
To correct green casts, you usually move slightly toward magenta (just above 100).
4. Set Strength
Strength controls how hard the correction is applied.
- 60–110%: common range
- 110–150%: stylized or difficult lighting
If the look feels too strong, reduce Strength before undoing your Temperature choice.
5. Choose Tonal range
Tonal range lets you focus the shift:
- Shadows: adjust darker areas more
- Even: apply evenly
- Highlights: adjust bright areas more
This is handy for:
- warming skin tones (mid/highlights) without lifting deep shadows
- cooling highlight glare without ruining the whole frame
6. Toggle Preserve brightness (luma)
Keep this on for most photos. It usually makes the result look cleaner and more “photographic.”
Turn it off only if you want a grittier, more effect-like result.
7. Download
Export full resolution in the original format. Filenames include your settings, e.g.
photo-temp140-tint106-str090-rng060-luma.jpg
Controls Explained
Temperature (Blue ↔ Yellow)
Temperature is the primary color balance dial:
- cooler = adds blue, reduces yellow
- warmer = adds yellow, reduces blue
It’s the fastest way to correct “too warm” vs “too cold” images.
Tint (Green ↔ Magenta)
Tint is a targeted correction control:
- Use it mostly to remove green cast (push slightly toward magenta)
- Avoid big swings unless you’re intentionally stylizing
Strength (0–200%)
Strength scales the temperature/tint shift:
- lower strength = subtle, natural
- higher strength = stronger correction or stylized mood
Tonal range (Shadows ↔ Highlights)
This tool applies a tonal weighting based on brightness:
- move toward Shadows to affect darker pixels more
- move toward Highlights to affect brighter pixels more
This can help avoid “whole image” casts when only certain regions need correction.
Preserve brightness (luma)
When enabled, the tool compensates to keep the original luminance more stable.
Practical benefits:
- fewer unwanted exposure shifts
- highlights don’t drift as much
- shadows stay grounded
Quick Recipes
Make an image warmer
- Temperature: 120–165
- Tint: 100–108 (only if greens show up)
- Strength: 80–130
- Tonal range: 55–75 (slightly highlights)
- Preserve luma: On
Cool down a yellow/orange cast
- Temperature: 65–95
- Tint: 100–105 (if green cast appears)
- Strength: 70–120
- Tonal range: 45–60
- Preserve luma: On
Fix indoor green cast
- Temperature: 90–115 (small move)
- Tint: 102–112 (small magenta push)
- Strength: 70–120
- Tonal range: 50–70
- Preserve luma: On
“Crisp winter daylight”
- Temperature: 55–85
- Tint: 98–104
- Strength: 80–130
- Tonal range: 60–85 (highlights)
- Preserve luma: On
Best Practices
1. Use Temperature first
Temperature should do most of the work. Tint is a fine correction tool — especially for greens.
2. Use small Tint moves
A little Tint goes a long way. If you push Tint hard, skin tones and neutrals can break quickly.
3. Prefer Preserve luma for photos
Keeping brightness stable makes the result feel more like a true correction rather than a filter.
4. Use Tonal range to avoid overcorrecting
If only highlights feel warm/cool, target Highlights. If shadows feel polluted, target Shadows.
Common Problems and Fixes
“It looks too yellow/orange.”
- Reduce Temperature slightly
- Or reduce Strength
“It looks too blue.”
- Increase Temperature slightly
- Or reduce Strength
“Skin looks green / sickly.”
- Increase Tint slightly above 100 (toward magenta)
- Keep the move subtle, then adjust Strength
“The whole photo got brighter/darker.”
- Enable Preserve luma
- Reduce Strength
How It Works
This tool applies a controlled RGB shift model:
- Temperature pushes channels roughly along a blue↔yellow axis
- Tint makes subtle green↔magenta corrections (primarily to neutralize green cast)
- Strength scales the overall correction
- Tonal range weights the correction based on pixel brightness (shadows vs highlights)
- Luma preservation rescales the result to keep luminance closer to the original
Preview is capped for speed; Download exports full resolution.
