True Blue
Also known as: Vesper, Medium Blue, Evil Eye, Lady of the Sea
True Blue is a medium, vivid blue that reads as cool and professional. It shines in SaaS products and finance apps. Its complement lands in brown territory, which makes for striking two-color pairings. It's dark enough to use for text on white backgrounds (10.82:1, passes WCAG AA).
True Blue color codes
- HEX
- #010FCC
- RGB
- rgb(1, 15, 204)
- RGBA
- rgba(1, 15, 204, 1)
- HSL
- hsl(236, 99%, 40%)
- HSV
- hsv(236, 100%, 80%)
- CMYK
- cmyk(100%, 93%, 0%, 20%)
- LAB
- lab(23.7 54.3 -92.7)
- OKLCH
- oklch(38.9% 0.260 264.3)
Color intelligence
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
cool
Nearest standard colors
- CSS: mediumblue#0000CD · ΔE 1.1
- RAL 5002 — Ultramarine blue#2B2C7C · ΔE 11.9 · 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 True 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
Tints, shades, and tones of True Blue
Tints (lighter)
Shades (darker)
Color harmonies
Palettes built from True Blue by rotating its hue in OKLCH space. Click any swatch to copy its hex code.
Complementary
Analogous
Triadic
Split-complementary
Tetradic
Monochromatic
Contrast & accessibility
Aa — on white
contrast 10.82:1
AA passAAA passAA large pass
Aa — on black
contrast 1.94:1
AA failAAA failAA large fail
Best text color on a True Blue background: #ffffff
Palettes featuring True Blue
True Blue with its complement
Soft neighbors of True Blue
True Blue triad
Similar colors
- Busty Blue#3300CC · ΔE 2.2
- Pure Blue#0203E2 · ΔE 2.6
- Dark Galaxy#0018A8 · ΔE 4.6
- Cobalt#030AA7 · ΔE 4.9
- Bluebonnet#1C1CF0 · ΔE 5.5
- Blue#0000FF · ΔE 6.1
Looking for maximum contrast instead? The complement of True Blue is closest to Pineapple.
True Blue FAQs
What color is True Blue?
True Blue is a medium blue with the hex code #010FCC. In HSL terms it has a hue of 236°, 99% saturation, and 40% lightness.
What is the hex code for True Blue?
The hex code for True Blue is #010FCC. In RGB it's rgb(1, 15, 204), and in CMYK it's cmyk(100%, 93%, 0%, 20%).
What colors go well with True Blue?
True 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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