Get this effect
Switch to Code in your Claude Desktop App
Install the skill (once)
Show the prompt
Install the Recharm video effects skill: download https://recharm-growth-staging.s3.us-east-2.amazonaws.com/website/downloads/recharm-video-effects.zip and unzip it into ~/.claude/skillsAsk for the effect
Add a pastel tone to input.mp4 Where black lands (0-1): 0.42 1 keeps the original contrast; lower flattens it for a gentle, chalky look: 0.85
Several videos, several effects, one ask
Put your clips in the folder, mention them with @, and ask for everything at once. Claude runs one tested script after another on each clip, then joins them.
Add a pastel tone to @clip1.mp4, put a sale badge on @clip2.mp4, give @clip3.mp4 a VHS look, then join all three with crossfades.
Settings you can change
Ask Claude to change any of these, or edit them at the top of the command.
| Setting | Default | What it does |
|---|---|---|
FLOOR | 0.42 | Where black lands (0-1). 0.42 turns pure black into a soft 107 gray, so nothing goes deep. |
CONTRAST | 0.85 | 1 keeps the original contrast; lower flattens it for a gentle, chalky look. |
SATURATION | 1.8 | Boosts the color the lifted floor washes out, so the pastels stay candy-like, not gray. |
TINT | 0.06 | How far the floor leans pink-lilac: red and blue are lifted this much more than green. |
Without the skill
Don’t want to install the skill? Paste this prompt into Claude Code and Claude writes the command itself.
Show the prompt
Give input.mp4 a pastel tone for the whole clip. Using ffmpeg, first lift the blacks with colorlevels so the darkest output value is 0.42 on green and 0.48 on red and blue (romin=0.48:gomin=0.42:bomin=0.48), which gives a milky floor with a slight pink-lilac lean. Then apply eq with contrast 0.85 and saturation 1.8 so the picture is soft and low in contrast but the colors stay candy-like rather than gray. Nothing in the frame should be darker than about 110 on any channel, the black dropper cap should turn a soft mauve, and the highlights must not blow out to white. Keep the size (540x960), 30fps, 6 seconds and the audio. Encode H.264 yuv420p and save it as output.mp4.Run it without Claude
This is the exact command we tested. Save it as pastel-tone.sh and run:
sh pastel-tone.sh input.mp4 output.mp4Show the command
#!/bin/sh
# Pastel tone: lift the blacks to a milky floor, soften the contrast and wash the colors with a light pink-lilac tint.
# Usage: sh pastel-tone.sh input.mp4 output.mp4
# Needs ffmpeg.
set -e
IN="$1"; OUT="$2"
FLOOR=0.42 # where black lands (0-1): 0.42 turns pure black into a soft 107 gray, so nothing goes deep
CONTRAST=0.85 # 1 keeps the original contrast; lower flattens it for a gentle, chalky look
SATURATION=1.8 # boosts the color the lifted floor washes out, so the pastels stay candy-like, not gray
TINT=0.06 # how far the floor leans pink-lilac (red and blue lifted this much more than green)
# colorlevels raises each channel's output minimum (red and blue a little higher, for the pastel tint);
# eq then flattens the contrast and puts the color strength back on top of the milky base.
ffmpeg -y -v error -i "$IN" -vf "colorlevels=romin=$FLOOR+$TINT:gomin=$FLOOR:bomin=$FLOOR+$TINT,\
eq=contrast=$CONTRAST:saturation=$SATURATION,format=yuv420p" \
-r 30 -c:v libx264 -crf 18 -c:a copy "$OUT"
