Nocturne
Also known as: Seaworthy, Iron Head, Aircraft Blue, Sailor’s Coat
Quietly clean and modern, Nocturne is a cool-toned cyan that earns its keep in tech interfaces and water themes. Nocturne plays well with brown tones — the harmonies below show exactly which ones. It's dark enough to use for text on white backgrounds (8.94:1, passes WCAG AA).
Nocturne color codes
- HEX
- #344D58
- RGB
- rgb(52, 77, 88)
- RGBA
- rgba(52, 77, 88, 1)
- HSL
- hsl(198, 26%, 27%)
- HSV
- hsv(198, 41%, 35%)
- CMYK
- cmyk(41%, 12%, 0%, 65%)
- LAB
- lab(31.1 -7.5 -9.7)
- OKLCH
- oklch(40.4% 0.036 227.2)
Color intelligence
Displays accurately on every screen and translates well to print.
Temperature
neutral, leaning cool
subtle blue undertone in this near-neutral
Nearest standard colors
- CSS: darkslategray#2F4F4F · ΔE 7.4
- RAL 7026 — Granite grey#374447 · ΔE 5.3 · approximate
RAL values are widely published approximations of the physical standard. For Pantone-adjacent workflows, match by eye against a physical fan deck — Pantone's values are proprietary and device-dependent, so we don't print lookups.
Where Nocturne works
- Web & UI: Dark enough for body text and icons on white backgrounds — it passes WCAG AA as-is.
- Interiors: Strong for a whole room, excellent in doses: an accent wall, cabinetry, or a statement chair.
- Fashion: Wears best as the statement piece — a top, scarf, or shoes — against neutral basics.
- Branding: Sits in the trust register — a natural primary for finance, health, and B2B brands.
- Web & UI: A supporting-cast color for UI: chart fills, tags, empty-state illustrations — not text.
- Branding: A secondary brand color by nature: it supports a stronger primary and shines in illustration.
Copy as — every ecosystem
Tints, shades, and tones of Nocturne
Tints (lighter)
Shades (darker)
Color harmonies
Palettes built from Nocturne by rotating its hue in OKLCH space. Click any swatch to copy its hex code.
Complementary
Analogous
Triadic
Split-complementary
Tetradic
Monochromatic
Contrast & accessibility
Aa — on white
contrast 8.94:1
AA passAAA passAA large pass
Aa — on black
contrast 2.35:1
AA failAAA failAA large fail
Best text color on a Nocturne background: #ffffff
Palettes featuring Nocturne
Nocturne with its complement
Soft neighbors of Nocturne
Nocturne triad
Similar colors
- Mallard#254855 · ΔE 3.0
- Dark Secret#3E5361 · ΔE 3.5
- Great Void#3B5760 · ΔE 3.7
- Stargazer#3F5865 · ΔE 3.9
- Nightfall#43535E · ΔE 4.1
- Juggernaut#255367 · ΔE 4.7
Looking for maximum contrast instead? The complement of Nocturne is closest to Turtle.
Nocturne FAQs
What color is Nocturne?
Nocturne is a dark cyan with the hex code #344D58. In HSL terms it has a hue of 198°, 26% saturation, and 27% lightness.
What is the hex code for Nocturne?
The hex code for Nocturne is #344D58. In RGB it's rgb(52, 77, 88), and in CMYK it's cmyk(41%, 12%, 0%, 65%).
What colors go well with Nocturne?
Nocturne pairs naturally with brown tones from its complementary harmony, and with red accents from its split-complementary palette. Its own tints and shades always work as a monochrome scheme.
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