Nearest named color: Denim Blue
#0A5FC0
#0A5FC0
Nearest named
Denim Blue
Family
Blue
Lightness
49.9%
Chroma
0.169
Hue angle
256.7°
Temperature
Cool
Contrast on white
6.16:1 · AA
Contrast on black
3.02:1 · AA Large
Web-safe
#0066CC
CSS oklch()
50% 0.17 257

#0A5FC0 is a mid-toned, cool indigo. On the Color Lab it reads clean and engineered. It carries a legible label as a UI accent and sits well as a supporting tone.

Palettes built on #0A5FC0

Not just a swatch — here's how #0A5FC0 works with other colors. Named schemes with #0A5FC0 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

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

Tech Product Signal · 5 colors

Denim 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 Denim Blue.

Vintage Leather Lead · 5 colors

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

Berry & Cream Lead · 5 colors

Denim Blue sits between cream and a deep berry here, softened by a blush accent and grounded by charcoal.

Minimal Editorial Surface · 5 colors

Denim 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 Denim Blue carrying the quiet middle.

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Color Lab

How #0A5FC0 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 5/100
Cool
Reads cool and recessive — calming, technical, good for trust-led UI.
Softness 35/100
Low
Middle-weight — neither delicate nor heavy.
Depth 53/100
Moderate
Mid depth — usable as an accent or a muted ground.
Naturalness 0/100
Very low
Reads engineered rather than organic — synthetic, digital.
Vintage feel 33/100
Low
A faint retro warmth without tipping into sepia.
Luxury 53/100
Moderate
Understated — leans refined without going austere.
Brand distinctiveness 46/100
Moderate
Recognisable but shares space with nearby hues.
UI accent fit 95/100
Very high
Strong interactive accent — visible and can carry a legible label.
Surface fit 8/100
Very low
Too saturated or mid-toned for big areas — keep it to accents.
Print safety 66/100
High
Prints close, with a slight loss of vibrancy.

Pairs with #0A5FC0

For UI
For branding
For interior
For fashion
People also use #0A5FC0 with

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 6.2:1. Use
Subtle surface Use #CDDFF4 for cards and hover fills. Tint 80
Avoid beside #0A23C2 — 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 #0A5FC0 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: #0A5FC0;
  --color-base-rgb: 10 95 192;
  --color-base-oklch: oklch(49.9% 0.169 256.7);
  --color-50: #F0F7FE;
  --color-100: #D8E9FD;
  --color-200: #B2D4FB;
  --color-300: #7EB4F2;
  --color-400: #4F94E3;
  --color-500: #2B75CA;
  --color-600: #295D99;
  --color-700: #23456C;
  --color-800: #1B2F46;
  --color-900: #121E2B;
  --color-on-base: #FFFFFF;
}