What color is #51669E?

#51669E is a medium, muted blue. In RGB it is rgb(81, 102, 158), and in HSL hsl(224, 32%, 47%).

Is #51669E accessible as text?

On white, #51669E has a contrast ratio of 5.61:1 (passes WCAG AA for body text); on black it is 3.74:1 (fails). For text placed on #51669E, use white for the best readability.

What is the closest Tailwind color to #51669E?

The nearest Tailwind CSS token is sky-700 (#0069A8).

What colors go well with #51669E?

#51669E pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #9E8A51. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #51669E below.

Is #51669E good for buttons?

#51669E works well for buttons and highlights, but use white text on #51669E — black text only reaches 3.74:1, below the 4.5:1 needed for normal-size labels.

Is #51669E the same as CSS steelblue?

No — #51669E is not the CSS named color steelblue, but steelblue (#4682B4) is the closest CSS named color.

#51669E Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #51669E

Not just a swatch — here's how #51669E works with other colors. Named schemes with #51669E in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #51669E Accent #A5C4C2 Surface #EAD5C0 Secondary #9AA0A1 Anchor #21344A

Very Peri 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

Signal #51669E Surface #14161A Highlight #F4F6F8 Secondary #5B6672 Accent #758ABF

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

Vintage Leather Lead · 5 colors

Lead #51669E Secondary #7F4535 Surface #EED7C2 Accent #365246 Anchor #58223A

Very Peri 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

Lead #51669E Surface #F6E5D8 Anchor #5B2143 Accent #E5C2CA Secondary #322B2F

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

Minimal Editorial Surface · 5 colors

Surface #F8F4EF Accent #51669E Secondary #8992A6 Support #9D8F88 Ink #18140F

Very Peri 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 Very Peri carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #51669E 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 28/100

Cool

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

Softness 45/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 48/100

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 60/100

Moderate

Faded, nostalgic quality — editorial, heritage and retro work.

Luxury 54/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 25/100

Low

Quiet and neutral — a supporting tone, not a signature.

UI accent fit 91/100

Very high

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

Surface fit 26/100

Low

Too saturated or mid-toned for big areas — keep it to accents.

Print safety 84/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #51669E

For UI

For branding

For interior

For fashion

People also use #51669E with

Cadet Blue Royal Purple Moss Green Gainsboro Charcoal

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 5.6:1. Use

Subtle surface Use #DEE1EA for cards and hover fills. Tint 80

Avoid beside #57519E — 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 #51669E 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: #51669E;
  --color-base-rgb: 81 102 158;
  --color-base-oklch: oklch(51.9% 0.093 267.5);
  --color-50: #F5F6FA;
  --color-100: #E4E7F2;
  --color-200: #C9D0E3;
  --color-300: #A3AECC;
  --color-400: #7F8DB3;
  --color-500: #5E6D97;
  --color-600: #4D5875;
  --color-700: #3A4154;
  --color-800: #292D38;
  --color-900: #1A1D23;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  very-peri: {
    50: '#F5F6FA',
    100: '#E4E7F2',
    200: '#C9D0E3',
    300: '#A3AECC',
    400: '#7F8DB3',
    500: '#5E6D97',
    600: '#4D5875',
    700: '#3A4154',
    800: '#292D38',
    900: '#1A1D23',
  },
}

$base: #51669E;
$base-ink: #FFFFFF;
$base-50: #F5F6FA;
$base-100: #E4E7F2;
$base-200: #C9D0E3;
$base-300: #A3AECC;
$base-400: #7F8DB3;
$base-500: #5E6D97;
$base-600: #4D5875;
$base-700: #3A4154;
$base-800: #292D38;
$base-900: #1A1D23;
$base-hover: #41527F;
$base-subtle: #CDD2E0;

{
    "color": {
        "base": {
            "value": "#51669E",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F5F6FA",
                "type": "color"
            },
            "100": {
                "value": "#E4E7F2",
                "type": "color"
            },
            "200": {
                "value": "#C9D0E3",
                "type": "color"
            },
            "300": {
                "value": "#A3AECC",
                "type": "color"
            },
            "400": {
                "value": "#7F8DB3",
                "type": "color"
            },
            "500": {
                "value": "#5E6D97",
                "type": "color"
            },
            "600": {
                "value": "#4D5875",
                "type": "color"
            },
            "700": {
                "value": "#3A4154",
                "type": "color"
            },
            "800": {
                "value": "#292D38",
                "type": "color"
            },
            "900": {
                "value": "#1A1D23",
                "type": "color"
            }
        }
    }
}

Palettes built on #51669E

Color Lab

Pairs with #51669E

UI roles & guardrails

In real applications

Scales

Every model

Export