Nearest named color: Viridian
#347F71
#347F71
Nearest named
Viridian
Family
Green
Lightness
54.5%
Chroma
0.078
Hue angle
179.0°
Temperature
Cool
Contrast on white
4.75:1 · AA
Contrast on black
3.91:1 · AA Large
Web-safe
#336666
CSS oklch()
55% 0.08 179

#347F71 is a mid-toned, cool cyan. On the Color Lab it reads with a faded, vintage edge, restrained and easy to live with. It carries a legible label as a UI accent and reproduces cleanly in print.

Palettes built on #347F71

Not just a swatch — here's how #347F71 works with other colors. Named schemes with #347F71 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Viridian opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.

Nordic Calm Accent · 5 colors

Viridian keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.

Vintage Leather Lead · 5 colors

Viridian plays the worn-leather lead, deepened by saddle brown and an oxblood anchor, softened by aged cream and cooled by a muted forest green.

Modern Café Dominant · 5 colors

Viridian anchors this café scheme as the warm mid-tone, lifted by latte cream and a muted sage accent and grounded by espresso brown and a warm charcoal.

Minimal Editorial Surface · 5 colors

Viridian is the single accent in this high-contrast editorial system — set on near-white paper against near-black ink, with a warm grey and a desaturated tint of Viridian carrying the quiet middle.

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Color Lab

How #347F71 actually behaves in design work — read from its OKLCH lightness, chroma and hue, not just its raw numbers. Ten signals to help you decide where this color earns its place.

Warmth 35/100
Cool
Reads cool and recessive — calming, technical, good for trust-led UI.
Softness 49/100
Moderate
Middle-weight — neither delicate nor heavy.
Depth 45/100
Moderate
Mid depth — usable as an accent or a muted ground.
Naturalness 34/100
Low
Loosely natural — an earthy edge without being rustic.
Vintage feel 63/100
High
Faded, nostalgic quality — editorial, heritage and retro work.
Luxury 51/100
Moderate
Understated — leans refined without going austere.
Brand distinctiveness 21/100
Low
Quiet and neutral — a supporting tone, not a signature.
UI accent fit 85/100
Very high
Strong interactive accent — visible and can carry a legible label.
Surface fit 33/100
Low
Usable as a tinted surface in measured doses.
Print safety 83/100
Very high
Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #347F71

For UI
For branding
For interior
For fashion

UI roles & guardrails

Primary action Safe as a filled button with white label. AA
Body text Passes on white at 16px and above. Pass
Large display Fine for headings 24px+ on white. Pass
Background Pair with white text at 4.8:1. Use
Subtle surface Use #D4E8E4 for cards and hover fills. Tint 80
Avoid beside #34737F — the hue gap is too small to read as intentional. Clash

In real applications

Not a swatch to memorise — a color to build with. Here is #347F71 at work across the surfaces designers actually ship.

Website / UI
Northwind Sign up
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Dashboard
Revenue
$48.2k ▲ 12%
Brand
AVELINE
Studio
Poster
Nov 14 · 8PM
NIGHT
MARKET
Packaging
BLOOM
Botanical Wash
250 ml
Interior

Scales

ShadesBase darkened in 10% steps
TintsBase lifted toward white
TonesSaturation removed, lightness held
Monochromatic scaleDesign-system ready, 50–900

Every model

Export

:root {
  --color-base: #347F71;
  --color-base-rgb: 52 127 113;
  --color-base-oklch: oklch(54.5% 0.078 179.0);
  --color-50: #F4FBFA;
  --color-100: #E2F4F0;
  --color-200: #C5E7E1;
  --color-300: #9CD3C9;
  --color-400: #76BCAF;
  --color-500: #559F92;
  --color-600: #477B71;
  --color-700: #365852;
  --color-800: #263B37;
  --color-900: #192422;
  --color-on-base: #FFFFFF;
}