Hydra
Also known as: Sea Blue, Peacock Blue, Port au Prince, Europe Blue
Hydra is what happens when cyan turns rich and vivid. The effect is clean and modern, made for tech interfaces and water themes. Its complement lands in brown territory, which makes for striking two-color pairings. On white it reads clearly at 6.08:1 contrast — safe for body text under WCAG AA.
Hydra color codes
- HEX
- #006995
- RGB
- rgb(0, 105, 149)
- RGBA
- rgba(0, 105, 149, 1)
- HSL
- hsl(198, 100%, 29%)
- HSV
- hsv(198, 100%, 58%)
- CMYK
- cmyk(100%, 30%, 0%, 42%)
- LAB
- lab(41.1 -13.4 -31.8)
- OKLCH
- oklch(49.3% 0.106 236.2)
Color intelligence
Displays accurately on every screen and translates well to print.
Temperature
cool
Nearest standard colors
- CSS: steelblue#4682B4 · ΔE 11.0
- RAL 5007 — Brilliant blue#41678D · ΔE 6.5 · 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 Hydra 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 — 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: Use it decoratively — dividers, chart series, illustration accents — and let neutrals carry the type.
- Branding: Best in a brand's supporting palette — packaging interiors, patterns, campaign accents.
Copy as — every ecosystem
Tints, shades, and tones of Hydra
Tints (lighter)
Shades (darker)
Color harmonies
Palettes built from Hydra 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 6.08:1
AA passAAA failAA large pass
Aa — on black
contrast 3.45:1
AA failAAA failAA large pass
Best text color on a Hydra background: #ffffff
Palettes featuring Hydra
Hydra with its complement
Soft neighbors of Hydra
Hydra triad
Similar colors
- Wavy Navy#006597 · ΔE 2.4
- Blue Velvet#0D6183 · ΔE 3.8
- Copacabana#006C8D · ΔE 4.1
- Harem Silk#006383 · ΔE 4.3
- Windsurfing#3A7099 · ΔE 4.8
- Hyper Blue#015F97 · ΔE 5.0
Looking for maximum contrast instead? The complement of Hydra is closest to Warm Brown.
Hydra FAQs
What color is Hydra?
Hydra is a dark cyan with the hex code #006995. In HSL terms it has a hue of 198°, 100% saturation, and 29% lightness.
What is the hex code for Hydra?
The hex code for Hydra is #006995. In RGB it's rgb(0, 105, 149), and in CMYK it's cmyk(100%, 30%, 0%, 42%).
What colors go well with Hydra?
Hydra pairs naturally with brown tones from its complementary harmony, and with red accents from its split-complementary palette. Its own tints and shades always work as a monochrome scheme.
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