Bluebell
Also known as: Depths of Night , Perfect Dark , Royal Night , Ultramarine Highlight
Bluebell brings a cool and professional feel to a palette. This medium blue suits SaaS products and finance apps. Match it with brown accents when the design calls for energy over calm. On white it reads clearly at 10.12:1 contrast, safe for body text under WCAG AA.
Reference
Bluebell color codes
- HEX
- #333399
- RGB
- rgb(51, 51, 153)
- RGBA
- rgba(51, 51, 153, 1)
- HSL
- hsl(240, 50%, 40%)
- HSV
- hsv(240, 67%, 60%)
- CMYK
- cmyk(67%, 67%, 0%, 40%)
- LAB
- lab(26.9 26.6 -57.0)
- OKLCH
- oklch(39.1% 0.162 275.9)
Analysis
Color intelligence
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Gamut
The full range of colors a device or space can show. sRGB is the common screen gamut; Display P3 is wider. A color outside a gamut cannot be shown accurately there and must be mapped inward.Full glossary entry →Displays accurately on every screen and translates well to print.
Temperature
Undertone
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cool
Nearest standard colors
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Delta E (ΔE)
A measure of how different two colors look. Below 1 the difference is invisible to almost everyone; below 2.3 most people can't tell them apart; above 10 they are clearly different colors. We use CIEDE2000, the modern standard.Full glossary entry →
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Delta E (ΔE)
A measure of how different two colors look. Below 1 the difference is invisible to almost everyone; below 2.3 most people can't tell them apart; above 10 they are clearly different colors. We use CIEDE2000, the modern standard.Full glossary entry →- CSS: darkslateblue #483D8B · ΔE 5.2
- RAL 5002: Ultramarine blue #2B2C7C · ΔE 4.8 · approximate
RAL values are widely published approximations of the physical standard. For Pantone-adjacent workflows, match by eye against a physical fan deck. Pantone's values are proprietary and device-dependent, so we don't print lookups.
Where Bluebell works
- Web & UI: Use it directly for text on light surfaces; it clears AA contrast without adjustment.
- Interiors: Use it where you want the eye to land: a front door, built-ins, or one bold wall.
- Fashion: One garment in this color carries an outfit; two starts to compete.
- Branding: The safest brand-primary family there is; differentiate with an unexpected accent.
- Web & UI: Reads as an interactive accent: fills, hovers, focus rings. Keep body text in a darker neutral.
- Branding: Best in a brand's supporting palette: packaging interiors, patterns, campaign accents.
Copy as: every ecosystem
Variations
Tints, shades, and tones of Bluebell
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Tint
A color mixed with white, which raises its lightness. Pink is a tint of red. Tints feel softer and more open than the base color.Full glossary entry →
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Tint
A color mixed with white, which raises its lightness. Pink is a tint of red. Tints feel softer and more open than the base color.Full glossary entry →Tints (lighter)
Shades (darker)
Harmonies
Color harmonies
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Complementary colors
Two colors opposite each other on the wheel. They create the strongest contrast and make each other look more intense, so they work best used unevenly.Full glossary entry →
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Complementary colors
Two colors opposite each other on the wheel. They create the strongest contrast and make each other look more intense, so they work best used unevenly.Full glossary entry →Palettes built from Bluebell by rotating its hue in OKLCH space. Click any swatch to copy its hex code.
Complementary
Analogous
Triadic
Split-complementary
Tetradic
Monochromatic
Accessibility
Contrast & accessibility
Aa on white
contrast 10.12:1
AA pass AAA pass AA large pass
Aa on black
contrast 2.07:1
AA fail AAA fail AA large fail
Best text color on a Bluebell background: #ffffff
Palettes
Palettes featuring Bluebell
Bluebell with its complement
Soft neighbors of Bluebell
Bluebell triad
Explore
Similar colors
- Blue Hour #0034AB · ΔE 4.1
- Smalt #003399 · ΔE 4.2
- Blueberry #464196 · ΔE 4.7
- Space Dust #002299 · ΔE 5.2
- Denim #2243B6 · ΔE 6.4
- Royalty #5930A9 · ΔE 6.6
Looking for maximum contrast instead? The complement of Bluebell is closest to Pineapple .
FAQ
Bluebell FAQs
What color is Bluebell?
Bluebell is a medium blue with the hex code #333399. In HSL terms it has a hue of 240°, 50% saturation, and 40% lightness.
What is the hex code for Bluebell?
The hex code for Bluebell is #333399. In RGB it's rgb(51, 51, 153), and in CMYK it's cmyk(67%, 67%, 0%, 40%).
What colors go well with Bluebell?
Bluebell pairs naturally with brown tones from its complementary harmony. Its own tints and shades always work as a monochrome scheme.
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