Nearest named color: Carolina Blue
#689FCA
#689FCA
Nearest named
Carolina Blue
Family
Blue
Lightness
68.1%
Chroma
0.086
Hue angle
243.1°
Temperature
Cool
Contrast on white
2.84:1 · Fail
Contrast on black
6.55:1 · AA
Web-safe
#6699CC
CSS oklch()
68% 0.09 243

#689FCA is a mid-toned, cool blue. On the Color Lab it reads clean and engineered. It carries a legible label as a UI accent and reproduces cleanly in print.

Palettes built on #689FCA

Not just a swatch — here's how #689FCA works with other colors. Named schemes with #689FCA in its natural role, and a note on why the supporting colors balance it.

Nordic Calm Accent · 5 colors

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

Coastal Morning Lead · 5 colors

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

Japanese Sand Base · 5 colors

Carolina Blue sets a calm, sun-bleached base here, wrapped in bone and paper off-whites and a soft greige, with a single ink accent for wabi-sabi restraint.

Tech Product Signal · 5 colors

Carolina Blue is the vivid signal in this product UI — on a near-black surface with cool white, a slate grey and a lighter tint of Carolina Blue.

Minimal Editorial Surface · 5 colors

Carolina Blue 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 Carolina Blue carrying the quiet middle.

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Color Lab

How #689FCA 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 25/100
Cool
Reads cool and recessive — calming, technical, good for trust-led UI.
Softness 58/100
Moderate
Middle-weight — neither delicate nor heavy.
Depth 31/100
Low
Airy and open — recedes, leaves the composition light.
Naturalness 0/100
Very low
Reads engineered rather than organic — synthetic, digital.
Vintage feel 48/100
Moderate
A faint retro warmth without tipping into sepia.
Luxury 39/100
Low
Understated — leans refined without going austere.
Brand distinctiveness 33/100
Low
Recognisable but shares space with nearby hues.
UI accent fit 60/100
Moderate
Workable accent with care around contrast.
Surface fit 43/100
Moderate
Usable as a tinted surface in measured doses.
Print safety 80/100
High
Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #689FCA

For UI
For branding
For interior
For fashion
People also use #689FCA with

UI roles & guardrails

Primary action Safe as a filled button with near-black label. AA
Body text Do not use for body copy on light surfaces. Avoid
Large display Only on dark surfaces. Avoid
Background Pair with #141310 text at 6.5:1. Use
Subtle surface Use #E4ECF2 for cards and hover fills. Tint 80
Avoid beside #687FCA — 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 #689FCA 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: #689FCA;
  --color-base-rgb: 104 159 202;
  --color-base-oklch: oklch(68.1% 0.086 243.1);
  --color-50: #F3F8FB;
  --color-100: #E0ECF5;
  --color-200: #C3D9EA;
  --color-300: #99BCD7;
  --color-400: #719EC1;
  --color-500: #5080A5;
  --color-600: #43657F;
  --color-700: #344A5B;
  --color-800: #25323C;
  --color-900: #181F25;
  --color-on-base: #141310;
}