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Fantasy · Level 4

Cobalt Blue Without Bleach — What to Expect.

Cobalt Blue deposits directly at level 4 — no pre-lightening on most bases, which means less damage, a shorter appointment, and easier reversal.

The exception: very dark, resistant, or previously colored hair can still block uptake. Strand-test first, and if the test grabs unevenly, ask for a clarifying or color-removal step rather than forcing developer.

By the Hair Color editorsReviewed by the Hair Color editorial teamTested in the virtual studio

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cool · level 4Pin it
Bleach
Not needed
Gray coverage
full
Upkeep
high
Fade
Blue deepens to navy before lifting over 4-5 weeks.

Cobalt Blue Without Bleach — What to Expect — FAQs.

Can I get Cobalt Blue without bleach?

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Usually not — level 4 can be reached on most bases without lift. Very dark or previously colored hair should still strand-test first.

How fast does Cobalt Blue fade?

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Expect this timeline: Blue deepens to navy before lifting over 4-5 weeks.

How much upkeep does Cobalt Blue need?

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High upkeep: toning refreshes every 2–4 weeks plus cold-water washes and heat protectant every time.

Compare with similar shades.

Cobalt Blue overview

Emerald

Level 4 · fantasy

Gemstone green with blue undertones — a jewel-toned statement that stays salon-smart on deep bases.

  • No bleach
  • Covers gray fully · High upkeep
  • Green fades to teal then sea-foam over 4 weeks.
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Midnight Blue

Level 2 · fantasy

Black-blue ink with a sapphire flash in daylight. Edge you can wear to the office.

  • No bleach
  • Covers gray fully · Medium upkeep
  • Indigo sheen holds 4-5 weeks.
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