Custom Manatee
Custom Manatee (#1B0737) is a deep indigo with a jewel character. It carries the deep, saturated richness of a gemstone. Authoritative and slightly formal, it works well for type and heavy UI elements. Its HSL profile (265°, 77%, 12%) places it in the highly saturated band at a dark lightness. Best used in small doses, like logos, CTAs, focus rings, or highlight text, where its saturation becomes a feature rather than noise. For a confident two-color system, pair it with its complementary lime. For something softer, pull in its analogous neighbors on either side of the wheel.
Etymology
Latin cōnsuētūdō, habit / usage — adjectival usage of custom. As a color modifier, custom implies a neutral-and-individually-fitted-and-bespoke quality, the neutral color of Savile-Row-tailoring and Gucci-and-Hermès-Made-to-Measure individually-fitted-and-bespoke craft-finish. Sits at the neutral-and-traditional end of the grid, parallel to bespoke and tailored in usage.
Caribbean Trichechus manatus — a Trichechidae sirenian aquatic mammal of Florida-Keys and Caribbean coastal-estuarine habitats, with deep-mottled-gray-brown skin. Manatee color refers to a Trichechus manatus dorsal-skin in raking sun on the St-Johns-River: a dark cool-gray with the matte finish of folded-and-leathery sirenian skin with multi-decade saltwater-and-algal-growth patina.
Closest matches
The nearest named color in three reference sources, ranked by perceptual distance (ΔE76 in CIELAB). ΔE < 1 is imperceptible to most viewers; ΔE > 10 is clearly different. When two sources point to the same hex they’re merged into one tile; click any to open that color’s page.
Variations
Click any swatch to exploreHarmonies
Accessibility
How this color appears to viewers with the four major color-vision-deficiency types. Computed via the Machado (2009) physiologically-based model. If a tile matches the original, the color reads the same to that viewer.
The color used as foreground text against pure white and pure black, with the contrast ratio and WCAG 2.1 grade. Aim for AA (4.5:1) for body text and AA Large (3:1) for 18 pt+ headlines; AAA (7:1) is the gold standard for long-form reading surfaces.