Pure Blue
Also known as: Ultramarine , Bluealicious , Nightfall in Suburbia , Hyperlink Blue
Pure Blue is a medium, vivid blue that reads as cool and professional. It earns its place in SaaS products and finance apps. For contrast, pair it with a brown from its complementary palette below. On white it reads clearly at 9.93:1 contrast, safe for body text under WCAG AA.
Reference
Pure Blue color codes
- HEX
- #0203E2
- RGB
- rgb(2, 3, 226)
- RGBA
- rgba(2, 3, 226, 1)
- HSL
- hsl(240, 98%, 45%)
- HSV
- hsv(240, 99%, 89%)
- CMYK
- cmyk(99%, 99%, 0%, 11%)
- LAB
- lab(25.8 61.8 -101.9)
- OKLCH
- oklch(41.4% 0.285 264.2)
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. Vivid colors like this typically lose some intensity in CMYK print. Request a physical proof for brand-critical work.
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: mediumblue #0000CD · ΔE 2.8
- RAL 5002: Ultramarine blue #2B2C7C · ΔE 14.0 · 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 Pure Blue works
- Web & UI: Dark enough for body text and icons on white backgrounds. It passes WCAG AA as-is.
- Interiors: Strong for a whole room, excellent in doses: an accent wall, cabinetry, or a statement chair.
- Fashion: Wears best as the statement piece, a top, scarf, or shoes, against neutral basics.
- Branding: Sits in the trust register: a natural primary for finance, health, and B2B brands.
- Web & UI: Best as a button fill, badge, or accent. Pair it with white text only at large sizes, and check contrast.
- Branding: A secondary brand color by nature: it supports a stronger primary and shines in illustration.
Copy as: every ecosystem
Variations
Tints, shades, and tones of Pure Blue
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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 Pure Blue 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 9.93:1
AA pass AAA pass AA large pass
Aa on black
contrast 2.11:1
AA fail AAA fail AA large fail
Best text color on a Pure Blue background: #ffffff
Palettes
Palettes featuring Pure Blue
Pure Blue with its complement
Soft neighbors of Pure Blue
Pure Blue triad
Explore
Similar colors
- True Blue #010FCC · ΔE 2.6
- Busty Blue #3300CC · ΔE 2.7
- Bluebonnet #1C1CF0 · ΔE 3.5
- Blue #0000FF · ΔE 3.6
- Vivid Blue #152EFF · ΔE 7.1
- Dark Galaxy #0018A8 · ΔE 7.1
Looking for maximum contrast instead? The complement of Pure Blue is closest to Pineapple .
FAQ
Pure Blue FAQs
What color is Pure Blue?
Pure Blue is a medium blue with the hex code #0203E2. In HSL terms it has a hue of 240°, 98% saturation, and 45% lightness.
What is the hex code for Pure Blue?
The hex code for Pure Blue is #0203E2. In RGB it's rgb(2, 3, 226), and in CMYK it's cmyk(99%, 99%, 0%, 11%).
What colors go well with Pure Blue?
Pure Blue pairs naturally with brown tones from its complementary harmony. Its own tints and shades always work as a monochrome scheme.
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