Splat Midnight Indigo Guide: Tips for Bold Color Results

An educational guide from the Beauty AMZ research team. No hard sell, just what you need to know.
What Is Splat Midnight Indigo
Splat Midnight Indigo is a semi-permanent fantasy hair color in a deep blue violet shade. It belongs to the Splat Midnight line, which is designed to show vivid color on brunette hair without bleach. The formula uses direct dyes that stain the hair cuticle, plus conditioning ingredients like baobab seed oil and quinoa extract. Each kit contains a 6 oz bottle of color, a Deep Reconstructor Conditioner packet, gloves, and instructions. The color is vegan, cruelty-free, and gluten-free. It lasts up to 30 washes, fading gradually rather than leaving harsh roots. Midnight Indigo suits cool undertones best and gives the richest results on medium brown to dark blonde hair. Pre-lightened hair gets the most electric blue violet payoff.
How to Apply It at Home
Start with dry, unwashed hair for the strongest color deposit. Put on the included gloves and protect your hairline with petroleum jelly. Apply the dye evenly from roots to ends using your fingers or a tint brush. Saturate each section fully, since missed spots show as patchy color. Pile your hair up, cover with a shower cap, and process for 45 minutes. Longer processing deepens the stain on resistant hair. Rinse with cool or lukewarm water until the water runs clear. Follow with the Deep Reconstructor Conditioner and rinse again. Style as usual and enjoy the color. Work in small sections for the most even saturation. Set a timer so you do not over-process.
How Long the Color Lasts
Splat claims up to 30 washes, and most users see four to six weeks of vivid color. Longevity depends on your hair porosity, washing frequency, and water temperature. Porous or bleached hair grabs color fast but releases it faster too. Cool water washing preserves the dye significantly longer than hot water. Sulfate-free shampoos are gentler on semi-permanent color than clarifying formulas. Swimming in chlorine strips the color quickly, so wear a swim cap or wet hair with clean water first. Expect the blue tones to fade first, leaving softer violet behind. Hard water minerals can dull vibrancy faster than soft water. A shower filter helps in hard water areas.
Removing or Changing the Color
Semi-permanent dye fades on its own, but stubborn staining can linger. Clarifying shampoo and hot water speed up fading when you want a change. Vitamin C treatments and anti-dandruff shampoo also help lift direct dye. Do not expect full removal on porous hair, since blue and violet pigments stain deeply. Color removers made for direct dye work better than bleach for fading Splat. If you plan to go lighter later, know that blue tones are the hardest fantasy colors to remove. Talk to a colorist before bleaching over faded indigo. Patience works better than aggressive stripping methods. Gentle fading over two weeks beats one harsh treatment.
Aftercare Tips for Vivid Color
Treat freshly dyed hair gently for the first 48 hours. Wait at least a day before the first wash so the stain fully sets. Wash with cool water and a sulfate-free, color-safe shampoo. Space washes two to three days apart and use dry shampoo between. Deep condition weekly to keep the cuticle smooth and the color locked in. Limit flat ironing and curling, since high heat fades direct dye fast. Always use a heat protectant when you do style. Sleep on a dark pillowcase to avoid staining your bedding. Silk pillowcases reduce friction that fades color overnight. These small habits add weeks of vibrancy.
Recommended Products
Midnight Indigo is the top pick for bold blue violet color without bleach. Browse the five Midnight shades above and grab the kit that matches your undertone.

Best for: Brunettes and blondes who want bold indigo color without bleach.
Splat Vegan and Cruelty-Free Semi-Permanent Hair Color Dye (6 Fl Oz, MIDNIGHT INDIGO)
- Semi-permanent blue violet color, lasts up to 30 washes
- No bleach needed, works on medium brown to blonde hair
- Vegan and cruelty-free formula with baobab seed oil
- Quinoa extract helps strengthen and protect strands
Pros
- Bold color without bleach damage
- Conditions hair while it colors
- One bottle covers most hair lengths
Cons
- Fades faster on porous or damaged hair
- Can stain skin, towels, and pillowcases
- Needs reapplication to keep color vivid

Best for: Anyone wanting vivid magenta pink color without pre-lightening.
Splat Midnight Magenta Semi Permanent Hair Dye Kit, 1 Application, Includes Deep Reconstructor Conditioner, Lasts 30 Washes
- Vibrant magenta pink, no bleach required
- Kit includes dye, reconstructor conditioner, and gloves
- Lasts up to 30 washes on light to medium brown hair
- Baobab and quinoa extracts add moisture and shine
Pros
- Complete kit with everything included
- Rich pink payoff on brown hair
- Vegan, cruelty-free, and gluten-free
Cons
- Pink can fade to uneven tones
- Stains bathroom surfaces if careless
- Processing takes 45 minutes

Best for: Blondes who want a deep violet purple fantasy shade.
Splat Hair Splat Rebellious Colors 30 Wash No Bleach Needed Hair Color Kit, Midnight Violet, 6 Oz
- Deep violet purple shade for blonde hair
- No bleach formula deposits bold color
- Lasts up to 30 washes with proper care
- Includes Deep Reconstructor Conditioner
Pros
- Intense violet on blonde and light hair
- Conditioner helps seal in color
- Affordable way to try fantasy color
Cons
- Best on blonde, weaker on dark hair
- Color bleeds in first few washes
- Gloves and old towels are a must

Best for: Warm-toned color lovers who want an amber orange shade.
Splat Midnight Amber Semi Permanent Hair Dye Kit, 1 Application, Includes Deep Reconstructor Conditioner, Lasts 30 Washes
- Warm amber orange shade in the Midnight line
- No bleach needed for medium brown to blonde hair
- Kit includes dye, conditioner, gloves, instructions
- Vegan and cruelty-free formula
Pros
- Unique warm shade stands out
- Easy at-home application
- Good value for a full kit
Cons
- Warm tones fade quickest
- May turn brassy on dark hair
- Requires strand test first

Best for: Anyone wanting near-black hair with a violet edge.
Splat Midnight Onyx Semi Permanent Hair Dye Kit, 1 Application, Includes Deep Reconstructor Conditioner, Lasts 30 Washes
- Deep black violet shade with blue undertones
- No bleach formula for dark to light hair
- Lasts up to 30 washes
- Includes reconstructor conditioner and gloves
Pros
- Dramatic dark color with violet depth
- Works well over dark brown hair
- Complete kit, no extras needed
Cons
- Very dark, hard to remove or change
- Stains skin and fabric badly
- Violet tone fades to plain black
Ready to Choose?
See our top product picks for splat midnight indigo hair dye, or jump straight to the head-to-head comparison of the two most popular options.