Hydra
#006995
Deep blue-teal for strong, crisp app headers
About Hydra
I keep seeing Hydra show up as that deep, saturated blue in product headers that looks "settled" rather than loud. It doesn't drift toward teal, and it doesn't soften into gray the way some darker blues do. The feel is authoritative without going navy-gray, with a tighter, cleaner undertone than Copacabana's more balanced cool and Chill of the Night's sharper ice.
Hydra is my go-to for dashboards and finance apps when you want primary actions, active tabs, and status highlights to read instantly on light UI. It also holds up in healthcare interfaces where you need hierarchy that feels steady, not friendly. Compared to Harem Silk, it has more weight and less brightness, so it stays legible in dense layouts without turning recessed.
Pair it with crisp whites and medium neutrals. If you stack too many mid blues nearby, Hydra can start to look flat, so I'd reserve it for the key moments rather than the whole screen.
Code snippets
Copy this color into your project.
Contrast checker
WCAG 2.1 contrast ratios. AA requires 4.5:1 for normal text, 3:1 for large. AAA requires 7:1 / 4.5:1.
On White #ffffff
On Gray 100 #f5f5f5
On Gray 900 #18181b
On Black #000000
Variations
Shades
Darker variations, created by mixing toward black.
Tints
Lighter variations, created by mixing toward white.
Tones
Muted variations, created by reducing saturation.
Hues
Hue rotations around the color wheel.
Temperatures
Warm and cool shifts of this color.
Color harmonies
Suggested palettes
Palettes built around this color.
Community palettes
Published palettes that include this color.
