What color is #5C99F5?

#5C99F5 is a light, vivid blue. In RGB it is rgb(92, 153, 245), and in HSL hsl(216, 88%, 66%).

Is #5C99F5 accessible as text?

On white, #5C99F5 has a contrast ratio of 2.86:1 (fails WCAG AA for body text); on black it is 7.33:1 (passes). For text placed on #5C99F5, use black for the best readability.

What is the closest Tailwind color to #5C99F5?

The nearest Tailwind CSS token is blue-400 (#51A2FF).

What colors go well with #5C99F5?

#5C99F5 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #F5B85C. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #5C99F5 below.

Is #5C99F5 good for buttons?

#5C99F5 works well for buttons and highlights, but use black text on #5C99F5 — white text only reaches 2.86:1, below the 4.5:1 needed for normal-size labels.

Is #5C99F5 the same as CSS cornflowerblue?

No — #5C99F5 is not the CSS named color cornflowerblue, but cornflowerblue (#6495ED) is the closest CSS named color.

#5C99F5 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #5C99F5

Not just a swatch — here's how #5C99F5 works with other colors. Named schemes with #5C99F5 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #5C99F5 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 #5C99F5 Secondary #AEB4B8 Surface #F1F2F0 Support #7D93A6 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 #5C99F5 Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #88C0FF

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 #5C99F5 Secondary #B1C7E8 Support #9D8F89 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 #5C99F5 Anchor #3B2924 Surface #EAE5D0 Accent #789E79 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 #5C99F5 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 49/100

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 33/100

Low

A faint retro warmth without tipping into sepia.

Luxury 38/100

Low

Understated — leans refined without going austere.

Brand distinctiveness 58/100

Moderate

Recognisable but shares space with nearby hues.

UI accent fit 66/100

High

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

Surface fit 25/100

Low

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

Print safety 70/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #5C99F5

For UI

For branding

For interior

For fashion

People also use #5C99F5 with

Electric Blue Medium Slate Blue Fawn 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 Only on dark surfaces. Avoid

Background Pair with #141310 text at 6.5:1. Use

Subtle surface Use #E3EBF9 for cards and hover fills. Tint 80

Avoid beside #5C66F5 — 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 #5C99F5 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: #5C99F5;
  --color-base-rgb: 92 153 245;
  --color-base-oklch: oklch(68.4% 0.151 258.4);
  --color-50: #F0F6FE;
  --color-100: #D8E7FD;
  --color-200: #B2CFFA;
  --color-300: #7FACF0;
  --color-400: #508AE2;
  --color-500: #2D6BC8;
  --color-600: #2A5698;
  --color-700: #24406B;
  --color-800: #1B2C46;
  --color-900: #131C2B;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  cornflower-blue: {
    50: '#F0F6FE',
    100: '#D8E7FD',
    200: '#B2CFFA',
    300: '#7FACF0',
    400: '#508AE2',
    500: '#2D6BC8',
    600: '#2A5698',
    700: '#24406B',
    800: '#1B2C46',
    900: '#131C2B',
  },
}

$base: #5C99F5;
$base-ink: #141310;
$base-50: #F0F6FE;
$base-100: #D8E7FD;
$base-200: #B2CFFA;
$base-300: #7FACF0;
$base-400: #508AE2;
$base-500: #2D6BC8;
$base-600: #2A5698;
$base-700: #24406B;
$base-800: #1B2C46;
$base-900: #131C2B;
$base-hover: #1D71F1;
$base-subtle: #D4E2F6;

{
    "color": {
        "base": {
            "value": "#5C99F5",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F0F6FE",
                "type": "color"
            },
            "100": {
                "value": "#D8E7FD",
                "type": "color"
            },
            "200": {
                "value": "#B2CFFA",
                "type": "color"
            },
            "300": {
                "value": "#7FACF0",
                "type": "color"
            },
            "400": {
                "value": "#508AE2",
                "type": "color"
            },
            "500": {
                "value": "#2D6BC8",
                "type": "color"
            },
            "600": {
                "value": "#2A5698",
                "type": "color"
            },
            "700": {
                "value": "#24406B",
                "type": "color"
            },
            "800": {
                "value": "#1B2C46",
                "type": "color"
            },
            "900": {
                "value": "#131C2B",
                "type": "color"
            }
        }
    }
}