What color is #3A91DC?

#3A91DC is a medium, vivid blue. In RGB it is rgb(58, 145, 220), and in HSL hsl(208, 70%, 55%).

Is #3A91DC accessible as text?

On white, #3A91DC has a contrast ratio of 3.35:1 (fails WCAG AA for body text); on black it is 6.26:1 (passes). For text placed on #3A91DC, use black for the best readability.

What is the closest Tailwind color to #3A91DC?

The nearest Tailwind CSS token is sky-600 (#0084D1).

What colors go well with #3A91DC?

#3A91DC pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #DD873C. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #3A91DC below.

Is #3A91DC good for buttons?

#3A91DC works well for buttons and highlights, but use black text on #3A91DC — white text only reaches 3.35:1, below the 4.5:1 needed for normal-size labels.

Is #3A91DC the same as CSS cornflowerblue?

No — #3A91DC is not the CSS named color cornflowerblue, but cornflowerblue (#6495ED) is the closest CSS named color.

#3A91DC Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #3A91DC

Not just a swatch — here's how #3A91DC works with other colors. Named schemes with #3A91DC in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #3A91DC Accent #A5C4C1 Surface #DDDBBF Secondary #9AA0A1 Anchor #20344A

Cornflower 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 #3A91DC Secondary #AEB4B8 Surface #F1F2F0 Support #7C93A6 Anchor #2E3236

Cornflower 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 #3A91DC Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #6CB7FD

Cornflower 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 Cornflower Blue.

Minimal Editorial Surface · 5 colors

Surface #F6F4EF Accent #3A91DC Secondary #9FBBD6 Support #969386 Ink #16140F

Cornflower 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 Cornflower Blue carrying the quiet middle.

Modern Café Dominant · 5 colors

Dominant #3A91DC Anchor #3B2924 Surface #EAE5D0 Accent #7A9E78 Secondary #393933

Cornflower 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 #3A91DC 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 11/100

Cool

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

Softness 48/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 37/100

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 38/100

Low

A faint retro warmth without tipping into sepia.

Luxury 43/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 54/100

Moderate

Recognisable but shares space with nearby hues.

UI accent fit 81/100

Very high

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

Surface fit 23/100

Low

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

Print safety 69/100

High

Prints close, with a slight loss of vibrancy.

Pairs with #3A91DC

For UI

For branding

For interior

For fashion

People also use #3A91DC with

Turquoise Han Purple Cadmium Orange 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 5.5:1. Use

Subtle surface Use #DCE9F4 for cards and hover fills. Tint 80

Avoid beside #3C5CDD — 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 #3A91DC 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

Every model

Export

:root {
  --color-base: #3A91DC;
  --color-base-rgb: 58 145 220;
  --color-base-oklch: oklch(63.9% 0.140 248.1);
  --color-50: #F1F8FD;
  --color-100: #DBECFA;
  --color-200: #BAD8F3;
  --color-300: #8ABBE5;
  --color-400: #5F9DD3;
  --color-500: #3D7FB8;
  --color-600: #35648C;
  --color-700: #2B4964;
  --color-800: #203241;
  --color-900: #151F28;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  cornflower-blue: {
    50: '#F1F8FD',
    100: '#DBECFA',
    200: '#BAD8F3',
    300: '#8ABBE5',
    400: '#5F9DD3',
    500: '#3D7FB8',
    600: '#35648C',
    700: '#2B4964',
    800: '#203241',
    900: '#151F28',
  },
}

$base: #3A91DC;
$base-ink: #141310;
$base-50: #F1F8FD;
$base-100: #DBECFA;
$base-200: #BAD8F3;
$base-300: #8ABBE5;
$base-400: #5F9DD3;
$base-500: #3D7FB8;
$base-600: #35648C;
$base-700: #2B4964;
$base-800: #203241;
$base-900: #151F28;
$base-hover: #2275BF;
$base-subtle: #CADEEF;

{
    "color": {
        "base": {
            "value": "#3A91DC",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F1F8FD",
                "type": "color"
            },
            "100": {
                "value": "#DBECFA",
                "type": "color"
            },
            "200": {
                "value": "#BAD8F3",
                "type": "color"
            },
            "300": {
                "value": "#8ABBE5",
                "type": "color"
            },
            "400": {
                "value": "#5F9DD3",
                "type": "color"
            },
            "500": {
                "value": "#3D7FB8",
                "type": "color"
            },
            "600": {
                "value": "#35648C",
                "type": "color"
            },
            "700": {
                "value": "#2B4964",
                "type": "color"
            },
            "800": {
                "value": "#203241",
                "type": "color"
            },
            "900": {
                "value": "#151F28",
                "type": "color"
            }
        }
    }
}

Palettes built on #3A91DC

Color Lab

Pairs with #3A91DC

UI roles & guardrails

In real applications

Scales

Every model

Export