What color is #818FCD?

#818FCD is a light, soft blue-violet. In RGB it is rgb(129, 143, 205), and in HSL hsl(229, 43%, 65%).

Is #818FCD accessible as text?

On white, #818FCD has a contrast ratio of 3.11:1 (fails WCAG AA for body text); on black it is 6.74:1 (passes). For text placed on #818FCD, use black for the best readability.

What is the closest Tailwind color to #818FCD?

The nearest Tailwind CSS token is indigo-400 (#7C86FF).

What colors go well with #818FCD?

#818FCD pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #CCBE7F. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #818FCD below.

Is #818FCD good for buttons?

#818FCD works well for buttons and highlights, but use black text on #818FCD — white text only reaches 3.11:1, below the 4.5:1 needed for normal-size labels.

Is #818FCD the same as CSS cornflowerblue?

No — #818FCD is not the CSS named color cornflowerblue, but cornflowerblue (#6495ED) is the closest CSS named color.

#818FCD Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #818FCD

Not just a swatch — here's how #818FCD works with other colors. Named schemes with #818FCD in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #818FCD Accent #A5C4C2 Surface #EAD5C0 Secondary #9AA0A1 Anchor #21344A

Cool Gray 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

Accent #818FCD Secondary #AEB4B8 Surface #F1F2F0 Support #7E92A7 Anchor #2E3236

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

Tech Product Signal · 5 colors

Signal #818FCD Surface #14161A Highlight #F4F6F8 Secondary #5B6672 Accent #A7B5EF

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

Minimal Editorial Surface · 5 colors

Surface #F8F4EF Accent #818FCD Secondary #B8BED5 Support #9D9088 Ink #18140F

Cool Gray 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 Cool Gray carrying the quiet middle.

Modern Café Dominant · 5 colors

Dominant #818FCD Anchor #3B2924 Surface #F3E1D2 Accent #769F7B Secondary #3C3734

Cool Gray 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.

Build a working theme in the generator →

Color Lab

How #818FCD 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 30/100

Cool

Reads cool and recessive — calming, technical, good for trust-led UI.

Softness 56/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 33/100

Low

Mid depth — usable as an accent or a muted ground.

Naturalness 0/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 53/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 41/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 36/100

Low

Recognisable but shares space with nearby hues.

UI accent fit 67/100

High

Strong interactive accent — visible and can carry a legible label.

Surface fit 40/100

Low

Usable as a tinted surface in measured doses.

Print safety 85/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #818FCD

For UI

For branding

For interior

For fashion

People also use #818FCD with

Light Steel Blue Medium Purple Burlywood Gainsboro Gunmetal Gray

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 Fine for headings 24px+ on white. Pass

Background Pair with #141310 text at 6.0:1. Use

Subtle surface Use #E8EAF3 for cards and hover fills. Tint 80

Avoid beside #8B7FCC — 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 #818FCD at work across the surfaces designers actually ship.

Website / UI

Northwind Sign up

Build faster.

A working theme, generated in seconds.

Dashboard

Revenue

$48.2k ▲ 12%

Brand

AVELINE

Studio

Poster

Nov 14 · 8PM

NIGHT
MARKET

Packaging

BLOOM

Botanical Wash

250 ml

Interior

Every model

Export

:root {
  --color-base: #818FCD;
  --color-base-rgb: 129 143 205;
  --color-base-oklch: oklch(66.3% 0.094 273.8);
  --color-50: #F4F5FB;
  --color-100: #E1E5F4;
  --color-200: #C5CBE8;
  --color-300: #9CA6D3;
  --color-400: #7582BD;
  --color-500: #5562A0;
  --color-600: #46507C;
  --color-700: #363C59;
  --color-800: #262A3B;
  --color-900: #191B24;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  cool-gray: {
    50: '#F4F5FB',
    100: '#E1E5F4',
    200: '#C5CBE8',
    300: '#9CA6D3',
    400: '#7582BD',
    500: '#5562A0',
    600: '#46507C',
    700: '#363C59',
    800: '#262A3B',
    900: '#191B24',
  },
}

$base: #818FCD;
$base-ink: #141310;
$base-50: #F4F5FB;
$base-100: #E1E5F4;
$base-200: #C5CBE8;
$base-300: #9CA6D3;
$base-400: #7582BD;
$base-500: #5562A0;
$base-600: #46507C;
$base-700: #363C59;
$base-800: #262A3B;
$base-900: #191B24;
$base-hover: #5063B9;
$base-subtle: #DBDFED;

{
    "color": {
        "base": {
            "value": "#818FCD",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F4F5FB",
                "type": "color"
            },
            "100": {
                "value": "#E1E5F4",
                "type": "color"
            },
            "200": {
                "value": "#C5CBE8",
                "type": "color"
            },
            "300": {
                "value": "#9CA6D3",
                "type": "color"
            },
            "400": {
                "value": "#7582BD",
                "type": "color"
            },
            "500": {
                "value": "#5562A0",
                "type": "color"
            },
            "600": {
                "value": "#46507C",
                "type": "color"
            },
            "700": {
                "value": "#363C59",
                "type": "color"
            },
            "800": {
                "value": "#262A3B",
                "type": "color"
            },
            "900": {
                "value": "#191B24",
                "type": "color"
            }
        }
    }
}

Palettes built on #818FCD

Color Lab

Pairs with #818FCD

UI roles & guardrails

In real applications

Scales

Every model

Export