Cobalt Blue
A strong, vivid blue named for the pigment made from cobalt salts.
At a glance
- Hue family
- blue
- Warmth
- cool
- Tone depth
- deep
- Saturation
- Vivid
Quick intelligence summary
- Feels like
- cool, deep, vivid
- Works well with
- See the pairings section below for calculated harmony options.
- Common uses
- See uses & contexts below for interiors, fashion and practical guidance.
- Accessibility snapshot
- Pairs better with white text (8.4:1) than black (2.5:1).
See this colour in the real world
Colours in photographs vary with lighting, material, camera processing and screen calibration — the named colours below are visual approximations, not exact measurements.
The same layered, light-bending scale structure behind a Blue Morpho's wings or a hummingbird's gorget produces these eye-spots — no blue or green pigment is present in the feather at all.
Like all structural colour, a peacock feather's blue and green shift with viewing angle; a peacock feather ground into powder looks brown, since grinding destroys the microscopic structure that produces the colour."Peacock feathers closeup" by AlexDuarte, public domain, via Wikimedia CommonsLicence details
- Source:
- Wikimedia Commons
- Creator:
- AlexDuarte
- Licence:
- Released into the public domain by the copyright holder, free for any use.
- Reviewed:
- 2026-07-24
Pairings
Subtle, bold, analogous, complementary and neutral options — established design convention, not a guarantee of visual success in every context.
Complementary
Opposite hues (180° apart) for maximum hue contrast.
Analogous
Neighbouring hues on the colour wheel for a low-contrast, harmonious feel.
No curated profile yet
Analogous
Neighbouring hues on the colour wheel for a low-contrast, harmonious feel.
Triadic
Three hues evenly spaced around the colour wheel for balanced contrast.
Triadic
Three hues evenly spaced around the colour wheel for balanced contrast.
No curated profile yet
Split-complementary
The two hues bracketing the complement, for contrast with less tension.
Split-complementary
The two hues bracketing the complement, for contrast with less tension.
Tetradic
Four hues at 90° steps around the colour wheel for a rich, varied palette.
Tetradic
Four hues at 90° steps around the colour wheel for a rich, varied palette.
Tetradic
Four hues at 90° steps around the colour wheel for a rich, varied palette.
No curated profile yet
Monochromatic
Same hue at different lightness levels, for a cohesive tonal palette.
Monochromatic
Same hue at different lightness levels, for a cohesive tonal palette.
Monochromatic
Same hue at different lightness levels, for a cohesive tonal palette.
Monochromatic
Same hue at different lightness levels, for a cohesive tonal palette.
No curated profile yet
For an accessible, low-contrast-risk pairing, monochromatic (same-hue) combinations are usually the safest starting point — see the harmonies above.
Uses & contexts
Continue exploring
Go deeperThe history of colour namesMany colour names originate from a specific plant, animal, mineral or place — 'orange' from the fruit, 'magenta' from an 1859 battle, 'ultramarine' literally meaning 'beyond the sea' — rather than being abstract labels invented for the colour itself.HistoryGo deeperColour in medieval and Renaissance EuropeMedieval and Renaissance European painters worked within real material constraints — the most expensive pigments, especially natural ultramarine, were often reserved for the most important subjects in a painting, making pigment choice itself a signal of what mattered most.History
Meaning & story
Name origin
- Named for cobalt, the metal used since antiquity to produce deep blue glass and glazes, later refined into a stable pigment in the early 19th century.
True of the blue family generally
Inherited from the blue hue family, not specifically documented about this exact shade — see methodology.
- Blue is often considered calming and is widely used in corporate branding, particularly in finance and technology, to convey trust and stability.
- Blue, and ultramarine in particular, is traditionally associated with the Virgin Mary in Christian art, historically used for her robes in Renaissance and medieval European painting.
Pigment & family history
Moods
Terminology
Lighter, darker & directional variants
Calculated directional adjustments. Some directions converge on the same result from this starting colour — shown as one merged card with an explanation, not repeated duplicates. Generated shades link to a curated profile only when one is close enough.
Lighter
Lightness increased
Darker
Lightness decreased
Warmer & Greener & Yellower
Hue rotated toward warm (red/orange) From this starting colour, moving warmer and greener and yellower converges on the same calculated result.
Cooler
Hue rotated toward cool (blue)
Bluer
Hue rotated toward blue
Redder
Hue rotated toward red
More muted
Saturation softened
More saturated
Saturation increased This is close to the source colour itself — there is limited room left to move more saturated from here.
In nature
Technical details
Technical values
CMYK is an approximate device conversion, not a calibrated print value — see methodology.
Convert this colour to another format →
Common pigment-history reference value for the named colour.
Characteristics
- Hue family
- blue
- Undertone
- cool
- Tone depth
- deep
- Pastel
- No
- Earth tone
- No
- Jewel tone
- Yes
- Vivid
- Yes
- Greyness
- 0%
- Visual weight
- 80/100
Accessibility
vs. white text
8.44:1 — AAA
vs. black text
2.49:1 — fails
Confidence: medium · Qualification: identity_only, technically_qualified, curated_profile_eligible, search_index_eligible, comparison_eligible
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