#4A5C6ASeven Seas (#4A5C6A) is a dark, muted sky blue with an OKLCH hue of 242°, lightness 0.47 and chroma 0.032. 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 | #4A5C6A |
|---|---|
| RGB | rgb(74, 92, 106) |
| HSL | hsl(206, 18%, 35%) |
| HSV | hsv(206, 30%, 42%) |
| CMYK | cmyk(30%, 13%, 0%, 58%) |
| CIE Lab | lab(38.1 -3.2 -10.2) |
| OKLCH | oklch(0.465 0.032 242) |
Under warm 2700K interior light Seven Seas shifts only faintly, with no single dominant change; in north-facing or shaded light it shifts subtly: drifts toward blue. Overall drift across common illuminants is small (max ΔE ≈ 1.2), so it is a lighting-stable choice.
#4f5a63 — ΔE 1.2, shifts only faintly, with no single dominant change#4e5d68 — ΔE 0.8, shifts subtly: leans toward blue-green#4a5c6a — ΔE 0.0, is virtually unchanged#4a5c6c — ΔE 0.3, shifts subtly: drifts toward blueTest Seven Seas 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 6.93:1 and against black 3.03:1, so white text is the stronger pairing. That pairing passes WCAG AA for body text.
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.
#a0afbb · #798996 · #4a5c6a · #32434f · #15232e · #01070f
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.
#50868f · #3c7288 · #4a5c6a · #314a6e · #2f365a · #2a2445
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.
#b3aecb · #968bbe · #77728a · #4a5c6a · #1c425d · #022840
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.
#d5a881 · #6e7b85 · #4a5c6a · #283f50 · #0f2331 · #010912
The anchor as the only color in the room. True neutrals or complement-warmed near-neutrals let it stay dominant.
#f7f0eb · #a8b2b9 · #77726e · #4a5c6a · #39424a · #020100
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.
#ebf3f9 · #c2cbd2 · #4a5c6a · #19262f · #00050d · #f29b46
The opposite hue on the perceptual wheel, tempered to field strength — warm/cool tension without vibration.
#fdefe3 · #cda88a · #936944 · #4a5c6a · #59391a · #000510
The complement's two neighbours instead of the complement itself — strong contrast with a lower clash risk.
#fdefe3 · #d4a399 · #83723d · #4a5c6a · #5e342b · #080400
Three hues spaced evenly around the wheel; the anchor leads and the other two are held at supporting strength.
#ffecf1 · #d2a1ad · #6c7a47 · #4a5c6a · #3c461d · #050001
Two complementary pairs offset by 90° — the richest chord, kept usable by a strict lightness hierarchy.
#fbedf9 · #c8a3c2 · #936944 · #4a5c6a · #254b30 · #110400
#637481 · #7E8C98 · #99A6B0 · #B5C0C8 · #D2DBE1
#3C4C59 · #2F3D48 · #222F39 · #162129 · #0B141B
#4D5C67 · #515B63 · #545A5F
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.