#405E5CRosemary (#405E5C) is a dark, muted blue-green with an OKLCH hue of 191°, lightness 0.46 and chroma 0.035. It sits on the cool side of the color wheel. In practice it behaves as a mid-weight working color for secondary surfaces and editorial blocks.
| HEX | #405E5C |
|---|---|
| RGB | rgb(64, 94, 92) |
| HSL | hsl(176, 19%, 31%) |
| HSV | hsv(176, 32%, 37%) |
| CMYK | cmyk(32%, 0%, 2%, 63%) |
| CIE Lab | lab(37.6 -11.5 -2.4) |
| OKLCH | oklch(0.458 0.035 191) |
Under warm 2700K interior light Rosemary shifts subtly: leans toward green; in north-facing or shaded light it shifts subtly: leans toward sky blue. Overall drift across common illuminants is small (max ΔE ≈ 1.1), so it is a lighting-stable choice.
#465c56 — ΔE 1.1, shifts subtly: leans toward green#445e5a — ΔE 0.6, shifts subtly: leans toward green#405e5c — ΔE 0.0, is virtually unchanged#405e5d — ΔE 0.2, shifts subtly: leans toward sky blueTest Rosemary in the color lighting simulator — sweep it through daylight, warm 2700K light, 4000K LED, and shade alongside the rest of your palette.
Against white it measures 7.06:1 and against black 2.97:1, so white text is the stronger pairing. That pairing passes WCAG AA for body text. Avoid black text on this color entirely.
One color explored: close hues with real lightness and chroma structure, so the palette is the anchor through value rather than a set of colors.
#98b0ae · #708b89 · #405e5c · #294443 · #0b2423 · #000807
The anchor's neighbours on the wheel — everything shares an undertone, so the chord carries color without anything having to be muted to get along.
#518293 · #32737c · #405e5c · #0e5345 · #13412b · #152f14
The mid-gap pairing — sage and mustard, terracotta and olive. A foil rotated 40–65° toward warm or cool: too far to be kin, too near to argue, carried by temperature and a deliberate value offset.
#9ab4c9 · #6897bc · #617788 · #405e5c · #004744 · #002a29
One deliberately opposed voice — a single restrained counterpoint across the wheel, or temperature against temperature where the anchor is too muted to carry a loud opposite.
#9fc2bf · #b47980 · #405e5c · #2c3e3d · #002523 · #000a09
The anchor as the only color in the room. True neutrals or complement-warmed near-neutrals let it stay dominant.
#f9eff0 · #a5b2b1 · #766f70 · #405e5c · #354241 · #020101
This color as a ground rather than a subject — its own restraint held across a narrow value band, carrying one saturated voice from the opposite temperature.
#e8f5f4 · #becdcc · #405e5c · #132927 · #000706 · #e54d6f
The same quiet ground carrying one bright gold voice — the high-energy pairing a cool or muted anchor cannot reach through its own temperature.
#e8f5f4 · #becdcc · #405e5c · #132927 · #000706 · #efbb4d
The opposite hue on the perceptual wheel, tempered to field strength — warm/cool tension without vibration.
#ffedee · #d2a0a6 · #975e66 · #405e5c · #5c3037 · #000202
The complement's two neighbours instead of the complement itself — strong contrast with a lower clash risk.
#ffedee · #caa1bb · #97624f · #405e5c · #563149 · #0d0100
Three hues spaced evenly around the wheel; the anchor leads and the other two are held at supporting strength.
#f7eefd · #bba5cc · #8d693e · #405e5c · #543915 · #020005
Two complementary pairs offset by 90° — the richest chord, kept usable by a strict lightness hierarchy.
#eff1ff · #a8abd5 · #975e66 · #405e5c · #474013 · #070001
#5B7674 · #778E8C · #93A8A6 · #B1C2C0 · #CFDCDB
#334E4D · #273F3E · #1B312F · #102322 · #061615
#465D5B · #4B5B5A · #505A59
Its moderate chroma lets it work in mid-size areas — upholstery, secondary UI surfaces, editorial blocks — without overwhelming neighbors. In palettes it pairs most predictably with its tonal ramp and analogous neighbors; reserve the complementary hue for small, deliberate contrast.