What color is #6591C8?

#6591C8 is a medium blue. In RGB it is rgb(101, 145, 200), and in HSL hsl(213, 47%, 59%).

Is #6591C8 accessible as text?

On white, #6591C8 has a contrast ratio of 3.26:1 (fails WCAG AA for body text); on black it is 6.44:1 (passes). For text placed on #6591C8, use black for the best readability.

What is the closest Tailwind color to #6591C8?

The nearest Tailwind CSS token is cyan-600 (#0092B8).

What colors go well with #6591C8?

#6591C8 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #C89B65. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #6591C8 below.

Is #6591C8 good for buttons?

#6591C8 works well for buttons and highlights, but use black text on #6591C8 — white text only reaches 3.26:1, below the 4.5:1 needed for normal-size labels.

Is #6591C8 the same as CSS cornflowerblue?

No — #6591C8 is not the CSS named color cornflowerblue, but cornflowerblue (#6495ED) is the closest CSS named color.

#6591C8 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #6591C8

Not just a swatch — here's how #6591C8 works with other colors. Named schemes with #6591C8 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #6591C8 Accent #A5C4C1 Surface #DDDBBF Secondary #9AA0A1 Anchor #20344A

Ocean Blue 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 #6591C8 Secondary #AEB4B8 Surface #F1F2F0 Support #7D93A6 Anchor #2E3236

Ocean Blue 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 #6591C8 Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #8EB7EA

Ocean 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 Ocean Blue.

Minimal Editorial Surface · 5 colors

Surface #F6F4EF Accent #6591C8 Secondary #ACBBCF Support #9D8F89 Ink #16140F

Ocean 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 Ocean Blue carrying the quiet middle.

Modern Café Dominant · 5 colors

Dominant #6591C8 Anchor #3B2924 Surface #EAE5D0 Accent #799E78 Secondary #393933

Ocean Blue 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 #6591C8 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 24/100

Cool

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

Softness 54/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 35/100

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 51/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 43/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 37/100

Low

Recognisable but shares space with nearby hues.

UI accent fit 73/100

High

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

Surface fit 37/100

Low

Usable as a tinted surface in measured doses.

Print safety 80/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #6591C8

For UI

For branding

For interior

For fashion

People also use #6591C8 with

Sky Blue Slate Blue Camel Gainsboro Charcoal

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 5.7:1. Use

Subtle surface Use #E3E9F1 for cards and hover fills. Tint 80

Avoid beside #6571C8 — 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 #6591C8 at work across the surfaces designers actually ship.

Website / UI

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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: #6591C8;
  --color-base-rgb: 101 145 200;
  --color-base-oklch: oklch(64.7% 0.096 254.5);
  --color-50: #F3F7FB;
  --color-100: #E0EAF5;
  --color-200: #C3D4E9;
  --color-300: #99B5D6;
  --color-400: #7295C0;
  --color-500: #5176A4;
  --color-600: #445E7E;
  --color-700: #34465A;
  --color-800: #252F3C;
  --color-900: #181E25;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  ocean-blue: {
    50: '#F3F7FB',
    100: '#E0EAF5',
    200: '#C3D4E9',
    300: '#99B5D6',
    400: '#7295C0',
    500: '#5176A4',
    600: '#445E7E',
    700: '#34465A',
    800: '#252F3C',
    900: '#181E25',
  },
}

$base: #6591C8;
$base-ink: #141310;
$base-50: #F3F7FB;
$base-100: #E0EAF5;
$base-200: #C3D4E9;
$base-300: #99B5D6;
$base-400: #7295C0;
$base-500: #5176A4;
$base-600: #445E7E;
$base-700: #34465A;
$base-800: #252F3C;
$base-900: #181E25;
$base-hover: #4073B1;
$base-subtle: #D4DFEB;

{
    "color": {
        "base": {
            "value": "#6591C8",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F3F7FB",
                "type": "color"
            },
            "100": {
                "value": "#E0EAF5",
                "type": "color"
            },
            "200": {
                "value": "#C3D4E9",
                "type": "color"
            },
            "300": {
                "value": "#99B5D6",
                "type": "color"
            },
            "400": {
                "value": "#7295C0",
                "type": "color"
            },
            "500": {
                "value": "#5176A4",
                "type": "color"
            },
            "600": {
                "value": "#445E7E",
                "type": "color"
            },
            "700": {
                "value": "#34465A",
                "type": "color"
            },
            "800": {
                "value": "#252F3C",
                "type": "color"
            },
            "900": {
                "value": "#181E25",
                "type": "color"
            }
        }
    }
}

Palettes built on #6591C8

Color Lab

Pairs with #6591C8

UI roles & guardrails

In real applications

Scales

Every model

Export