Nearest named color: Brunswick Green
#09453E
#09453E
Nearest named
Brunswick Green
Family
Blue
Lightness
35.3%
Chroma
0.059
Hue angle
183.0°
Temperature
Cool
Contrast on white
10.87:1 · AAA
Contrast on black
1.71:1 · Fail
Web-safe
#003333
CSS oklch()
35% 0.06 183

#09453E is a deep, cool cyan. On the Color Lab it reads quietly premium. It reproduces cleanly in print.

Palettes built on #09453E

Not just a swatch — here's how #09453E works with other colors. Named schemes with #09453E in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Brunswick Green 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

Brunswick Green 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

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

Luxury Packaging Feature · 5 colors

Brunswick Green carries the depth in this luxury scheme, offset by a brass accent and near-black and held together by a deep neutral and an off-white surface.

Minimal Editorial Surface · 5 colors

Brunswick Green 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 Brunswick Green carrying the quiet middle.

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Color Lab

How #09453E 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 38/100
Neutral
Balanced temperature — flexible, sits between warm and cool schemes.
Softness 34/100
Low
Middle-weight — neither delicate nor heavy.
Depth 62/100
High
Deep and grounding — anchors a layout, strong dark-mode base.
Naturalness 22/100
Low
Reads engineered rather than organic — synthetic, digital.
Vintage feel 39/100
Low
A faint retro warmth without tipping into sepia.
Luxury 66/100
High
Restrained and premium — deep, quiet, high-end packaging and fashion.
Brand distinctiveness 23/100
Low
Quiet and neutral — a supporting tone, not a signature.
UI accent fit 44/100
Moderate
Workable accent with care around contrast.
Surface fit 44/100
Moderate
Usable as a tinted surface in measured doses.
Print safety 87/100
Very high
Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #09453E

For UI
For branding
For interior
For fashion

UI roles & guardrails

Primary action Safe as a filled button with white label. AAA
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 10.9:1. Use
Subtle surface Use #BCECE6 for cards and hover fills. Tint 80
Avoid beside #093744 — 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 #09453E at work across the surfaces designers actually ship.

Website / UI
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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: #09453E;
  --color-base-rgb: 9 69 62;
  --color-base-oklch: oklch(35.3% 0.059 183.0);
  --color-50: #F1FEFC;
  --color-100: #DAFBF7;
  --color-200: #B7F5EE;
  --color-300: #86E9DE;
  --color-400: #59D9CA;
  --color-500: #37BEAE;
  --color-600: #319186;
  --color-700: #28665F;
  --color-800: #1E433F;
  --color-900: #142927;
  --color-on-base: #FFFFFF;
}