What color is #353FCA?

#353FCA is a medium blue. In RGB it is rgb(53, 63, 202), and in HSL hsl(236, 58%, 50%).

Is #353FCA accessible as text?

On white, #353FCA has a contrast ratio of 7.73:1 (passes WCAG AA for body text); on black it is 2.72:1 (fails). For text placed on #353FCA, use white for the best readability.

What is the closest Tailwind color to #353FCA?

The nearest Tailwind CSS token is indigo-700 (#432DD7).

What colors go well with #353FCA?

#353FCA pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #C9C036. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #353FCA below.

Is #353FCA good for buttons?

#353FCA works well for buttons and highlights, but use white text on #353FCA — black text only reaches 2.72:1, below the 4.5:1 needed for normal-size labels.

Is #353FCA the same as CSS mediumblue?

No — #353FCA is not the CSS named color mediumblue, but mediumblue (#0000CD) is the closest CSS named color.

#353FCA Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #353FCA

Not just a swatch — here's how #353FCA works with other colors. Named schemes with #353FCA in its natural role, and a note on why the supporting colors balance it.

Tech Product Signal · 5 colors

Signal #353FCA Surface #14161A Highlight #F4F6F8 Secondary #5B6672 Accent #556BE8

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

Coastal Morning Lead · 5 colors

Lead #353FCA Accent #A5C4C2 Surface #EAD5C0 Secondary #9AA0A1 Anchor #21344A

Cerulean opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.

Berry & Cream Lead · 5 colors

Lead #353FCA Surface #F6E5D8 Anchor #5B2143 Accent #E5C2C9 Secondary #322B2F

Cerulean 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 #353FCA Secondary #707DAC Support #9D8F88 Ink #18140F

Cerulean 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 Cerulean carrying the quiet middle.

Sunset Warmth Glow · 5 colors

Glow #353FCA Secondary #E86A73 Accent #F6924F Anchor #573B58 Surface #F7E7D7

Cerulean glows at the center of this sunset palette, joined by coral and gold, deepened by a plum anchor and cooled with cream.

Build a working theme in the generator →

Color Lab

How #353FCA 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 13/100

Cool

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

Softness 28/100

Low

Firm and assertive — carries weight and contrast.

Depth 58/100

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 19/100

Very low

Clean and current — no dusty, aged cast.

Luxury 54/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 81/100

Very high

Bold and ownable — memorable as a primary brand color.

UI accent fit 75/100

High

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

Surface fit 10/100

Very low

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

Print safety 65/100

High

Prints close, with a slight loss of vibrancy.

Pairs with #353FCA

For UI

For branding

For interior

For fashion

People also use #353FCA with

Carolina Blue Blue Violet Mustard Yellow Gainsboro Prussian Blue

UI roles & guardrails

Primary action Safe as a filled button with white label. AAA

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 7.7:1. Use

Subtle surface Use #DBDCF0 for cards and hover fills. Tint 80

Avoid beside #5D36C9 — 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 #353FCA 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: #353FCA;
  --color-base-rgb: 53 63 202;
  --color-base-oklch: oklch(45.9% 0.211 271.6);
  --color-50: #F2F3FC;
  --color-100: #DEE0F7;
  --color-200: #BFC2EE;
  --color-300: #9297DD;
  --color-400: #696FC9;
  --color-500: #474EAD;
  --color-600: #3D4285;
  --color-700: #30335F;
  --color-800: #23243E;
  --color-900: #171826;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  cerulean: {
    50: '#F2F3FC',
    100: '#DEE0F7',
    200: '#BFC2EE',
    300: '#9297DD',
    400: '#696FC9',
    500: '#474EAD',
    600: '#3D4285',
    700: '#30335F',
    800: '#23243E',
    900: '#171826',
  },
}

$base: #353FCA;
$base-ink: #FFFFFF;
$base-50: #F2F3FC;
$base-100: #DEE0F7;
$base-200: #BFC2EE;
$base-300: #9297DD;
$base-400: #696FC9;
$base-500: #474EAD;
$base-600: #3D4285;
$base-700: #30335F;
$base-800: #23243E;
$base-900: #171826;
$base-hover: #2B33A1;
$base-subtle: #C8CAEA;

{
    "color": {
        "base": {
            "value": "#353FCA",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F2F3FC",
                "type": "color"
            },
            "100": {
                "value": "#DEE0F7",
                "type": "color"
            },
            "200": {
                "value": "#BFC2EE",
                "type": "color"
            },
            "300": {
                "value": "#9297DD",
                "type": "color"
            },
            "400": {
                "value": "#696FC9",
                "type": "color"
            },
            "500": {
                "value": "#474EAD",
                "type": "color"
            },
            "600": {
                "value": "#3D4285",
                "type": "color"
            },
            "700": {
                "value": "#30335F",
                "type": "color"
            },
            "800": {
                "value": "#23243E",
                "type": "color"
            },
            "900": {
                "value": "#171826",
                "type": "color"
            }
        }
    }
}

Palettes built on #353FCA

Color Lab

Pairs with #353FCA

UI roles & guardrails

In real applications

Scales

Every model

Export