#344D58Nocturne (#344D58) is a dark, muted sky blue with an OKLCH hue of 227°, lightness 0.4 and chroma 0.036. 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 | #344D58 |
|---|---|
| RGB | rgb(52, 77, 88) |
| HSL | hsl(198, 26%, 27%) |
| HSV | hsv(198, 41%, 35%) |
| CMYK | cmyk(41%, 12%, 0%, 65%) |
| CIE Lab | lab(31.2 -6.3 -9.5) |
| OKLCH | oklch(0.404 0.036 227) |
Under warm 2700K interior light Nocturne shifts subtly: leans toward blue-green; in north-facing or shaded light it shifts subtly: leans toward blue. Overall drift across common illuminants is small (max ΔE ≈ 1.1), so it is a lighting-stable choice.
#394b52 — ΔE 1.1, shifts subtly: leans toward blue-green#384d56 — ΔE 0.6, is virtually unchanged#344d58 — ΔE 0.0, is virtually unchanged#344d59 — ΔE 0.2, shifts subtly: leans toward blueTest Nocturne 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 8.94:1 and against black 2.35:1, 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.
#96aab3 · #6f848e · #49616c · #344d58 · #0a2028 · #00050b
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.
#3e7575 · #22636f · #344d58 · #123c5a · #162a49 · #141836
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.
#9a9eba · #787dae · #60637a · #344d58 · #003446 · #001a26
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.
#c99379 · #5a6a72 · #344d58 · #13313c · #00161f · #000205
The anchor as the only color in the room. True neutrals or complement-warmed near-neutrals let it stay dominant.
#f8f0ec · #9ea9ae · #66605e · #344d58 · #283339 · #030100
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.
#e9f4f9 · #c0cdd3 · #344d58 · #1b2d35 · #000b13 · #f07d3d
The opposite hue on the perceptual wheel, tempered to field strength — warm/cool tension without vibration.
#ffeee6 · #c79c87 · #85543b · #344d58 · #4b2612 · #00050b
The complement's two neighbours instead of the complement itself — strong contrast with a lower clash risk.
#ffeee6 · #ca9899 · #7a5c2d · #344d58 · #4d2325 · #140800
Three hues spaced evenly around the wheel; the anchor leads and the other two are held at supporting strength.
#feecf5 · #c498ae · #66652f · #344d58 · #353304 · #040002
Two complementary pairs offset by 90° — the richest chord, kept usable by a strict lightness hierarchy.
#f8edfc · #b79cc0 · #85543b · #344d58 · #213917 · #0f0200
#506771 · #6E828B · #8C9EA6 · #ACBBC1 · #CDD8DD
#2A404A · #20343D · #172930 · #0E1D24 · #061318
#394C55 · #3E4B52 · #424A4E
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.