Showa era
Lemon Yellow & Deep Slate Olive +1
Plate 189 from Sanzo Wada's 1933 Dictionary of Color Combinations — Lemon Yellow, Deep Slate Olive, Venice Green.
#253122
green · 10 palettes
Deep Slate Olive
About Deep Slate Olive
Deep Slate Olive is a deep, near-neutral green tone. Its hex value is #253122 — that is
RGB 37, 49, 34, or HSL 108°, 18%, 16%.
It holds 13.6:1 contrast against white, so Deep Slate Olive works best for body text, headings, and UI labels. (On white it scores 13.6:1; on black 1.5:1.)
Across Sanzo Wada's 1933 Dictionary of Color Combinations, Deep Slate Olive appears in 10 combinations — most often paired with Neutral Gray, Light Brown Drab and Sulpher Yellow.
Colours that go with Deep Slate Olive
From a standard colour wheel, Deep Slate Olive anchors these four classic schemes. Each swatch is computed from its exact hue, so every hex is a real, usable pairing.
Complementary
#253122 #2E2231
the hue directly opposite — the highest-contrast pairing, good for a single bold accent.
Analogous
#253122 #2D3122 #223127
the two neighbours on the wheel — a calm, cohesive scheme that feels effortless.
Triadic
#253122 #222531 #312225
two hues an even third of the wheel away — balanced and lively without clashing.
Split-complementary
#253122 #272231 #31222D
the two colours either side of the complement — the contrast of a complement, softened.
How to use Deep Slate Olive
Deep Slate Olive is a deep, muted tone (HSL 108°, 18%, 16%), which makes it a grounding background or strong accent. For text it passes WCAG AA for body text against a light background (13.6:1) — safe for paragraphs, buttons and labels. When you do set type on it, use light lettering. Pair it with its complement (#2E2231) for a focal accent, or with its analogous neighbours (#2D3122 and #223127) for a quieter, harmonious feel.
Palettes with Deep Slate Olive
Deep Slate Olive appears in 10 combinations from the archive. Each pairing reveals how the same color shifts character depending on its neighbours.
From the archive
Support the archive The full catalog, on your disk, as a thank-you.
- All 378 palettes (348 Wada + 30 editorial) in five formats
- Figma design tokens (W3C-spec JSON, drag into any file)
- Tailwind v4 + v3 configs — drop into any project
- CSS custom properties — every plate, one stylesheet
- 378 museum SVG plates — print-ready at any size
- Full JSON — colors, names, eras, moods, dominant hues
See what's inside
Launching soon. The free archive stays free, always.