#778899Also known as Light Slate Grey.
Light Slate Gray (#778899) is a mid-tone, muted blue with an OKLCH hue of 248°, lightness 0.62 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 | #778899 |
|---|---|
| RGB | rgb(119, 136, 153) |
| HSL | hsl(210, 14%, 53%) |
| HSV | hsv(210, 22%, 60%) |
| CMYK | cmyk(22%, 11%, 0%, 40%) |
| CIE Lab | lab(55.9 -2.2 -11.1) |
| OKLCH | oklch(0.619 0.032 248) |
Under warm 2700K interior light Light Slate Gray shifts subtly: leans toward purple, loses intensity; in north-facing or shaded light it is virtually unchanged. Overall drift across common illuminants is small (max ΔE ≈ 1.6), so it is a lighting-stable choice.
#7e858f — ΔE 1.6, shifts subtly: leans toward purple, loses intensity#7c8996 — ΔE 0.9, is virtually unchanged#778899 — ΔE 0.0, is virtually unchanged#77899b — ΔE 0.4, is virtually unchangedAgainst white it measures 3.64:1 and against black 5.77:1, so black 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.
#d2e0ee · #a8b8c7 · #778899 · #5d6d7c · #3d4a57 · #1e2a35
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.
#80b4c2 · #6da0bb · #778899 · #60749e · #5c5f87 · #554c6f
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.
#cbb9ee · #a89fb9 · #778899 · #4b6c8c · #32506c · #362e45
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.
#e1f0ff · #dab185 · #778899 · #5c6772 · #364a5d · #212c38
The anchor as the only color in the room. True neutrals or complement-warmed near-neutrals let it stay dominant.
#f7f1ea · #9aa2aa · #778899 · #6f6b66 · #262d35 · #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.
#ecf3fa · #c2cad2 · #778899 · #18232e · #00040c · #f3a749
The opposite hue on the perceptual wheel, tempered to field strength — warm/cool tension without vibration.
#fcefe2 · #bb9b79 · #778899 · #886339 · #412501 · #00030d
The complement's two neighbours instead of the complement itself — strong contrast with a lower clash risk.
#fcefe2 · #c39586 · #778899 · #776c36 · #472013 · #040200
Three hues spaced evenly around the wheel; the anchor leads and the other two are held at supporting strength.
#ffecef · #c3929a · #778899 · #5f7444 · #23320b · #060001
Two complementary pairs offset by 90° — the richest chord, kept usable by a strict lightness hierarchy.
#fdecf7 · #bb93ae · #778899 · #886339 · #063620 · #130600
#8A99A9 · #9EABB9 · #B2BDC9 · #C6D0DA · #DBE3EA
#61707F · #4B5966 · #37424E · #232D37 · #111A22
#7A8895 · #7D8791 · #81878D
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.