Gracious Huīsè
Gracious Huīsè (#534F55) is a deep neutral with a mono character. It's a grayscale value, at home in typography, dividers, and the structural layer beneath stronger colors. Its HSL profile (280°, 4%, 32%) places it in the muted band at a dark lightness. It works as a background, hairline border, or text color in dark UI. Swap to true black when you need maximum contrast. Pair it with almost any saturated accent. It's built to sit underneath or behind stronger colors without fighting them.
Etymology
Latin grātiōsus, full-of-grace — adjectival suffix -ous. As a color modifier, gracious implies a neutral-and-courteous-and-warm quality, the neutral color of Edwardian-and-Belle-Époque gracious-and-formal-hosting Belle-Époque-Edwardian interior-decoration-and-textile coordinated-color tone. Sits at the neutral-and-friendly end of the grid, parallel to cordial and courteous in usage.
Chinese 灰色, gray color — the formal Chinese color name for the cool-gray neutral band, used in Qing-dynasty civil-magistrate court-and-ritual textiles. Huīsè color refers to a Qing-dynasty huīsè-dyed silk magisterial robe: a balanced cool gray with the silk luster of multi-bath fermentation-and-iron-mordant dye on tussah silk. Slightly cooler than Tiěhuī (iron-gray) and warmer than Yīnhuī (silver-gray).
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
This color has effectively no chroma (OKLCH C = 0.011) — it’s on the grayscale axis. Hue rotations don’t change a grayscale color, so complementary, analogous, triadic, and split-complementary all reduce to the same value. They aren’t shown because four identical tiles would be misleading.
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.
Wide gamut
The CSS Color 4 wide-gamut form of this color. Both swatches render the same color on every display — the P3 form only diverges from sRGB when a designer pushes channels outside sRGB's reach.
This color sits well within the sRGB cube. P3 and sRGB share the gray axis and most desaturated tones, so a P3 display renders this identically to an sRGB display.