Nearest named color: Midnight Blue
#221D7C
#221D7C
Nearest named
Midnight Blue
Family
Blue
Lightness
31.4%
Chroma
0.153
Hue angle
275.3°
Temperature
Cool
Contrast on white
13.68:1 · AAA
Contrast on black
1.36:1 · Fail
Web-safe
#333366
CSS oklch()
31% 0.15 275

#221D7C is a deep, cool violet. On the Color Lab it reads clean and engineered, quietly premium. It sits well as a supporting tone.

Palettes built on #221D7C

Not just a swatch — here's how #221D7C works with other colors. Named schemes with #221D7C in its natural role, and a note on why the supporting colors balance it.

Luxury Packaging Feature · 5 colors

Midnight Blue 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.

Moody Editorial Color · 5 colors

Midnight Blue adds the colour to this moody editorial scheme — charcoal and a mid-grey around it, a bone highlight, and a muted jewel accent drawn from Midnight Blue.

Coastal Morning Lead · 5 colors

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

Vintage Leather Lead · 5 colors

Midnight 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.

Minimal Editorial Surface · 5 colors

Midnight 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 Midnight Blue carrying the quiet middle.

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Color Lab

How #221D7C 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 18/100
Cool
Reads cool and recessive — calming, technical, good for trust-led UI.
Softness 24/100
Low
Firm and assertive — carries weight and contrast.
Depth 71/100
High
Deep and grounding — anchors a layout, strong dark-mode base.
Naturalness 0/100
Very low
Reads engineered rather than organic — synthetic, digital.
Vintage feel 28/100
Low
A faint retro warmth without tipping into sepia.
Luxury 70/100
High
Restrained and premium — deep, quiet, high-end packaging and fashion.
Brand distinctiveness 59/100
Moderate
Recognisable but shares space with nearby hues.
UI accent fit 44/100
Moderate
Workable accent with care around contrast.
Surface fit 20/100
Very low
Too saturated or mid-toned for big areas — keep it to accents.
Print safety 76/100
High
Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #221D7C

For UI
For branding
For interior
For fashion
People also use #221D7C with

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 13.7:1. Use
Subtle surface Use #CDCBEB for cards and hover fills. Tint 80
Avoid beside #411D7C — 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 #221D7C 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: #221D7C;
  --color-base-rgb: 34 29 124;
  --color-base-oklch: oklch(31.4% 0.153 275.3);
  --color-50: #F3F2FD;
  --color-100: #DFDDF8;
  --color-200: #C0BDEF;
  --color-300: #9490E0;
  --color-400: #6B66CC;
  --color-500: #4944B1;
  --color-600: #3E3A87;
  --color-700: #312E60;
  --color-800: #23223F;
  --color-900: #171627;
  --color-on-base: #FFFFFF;
}