What color is #355F97?

#355F97 is a medium blue. In RGB it is rgb(53, 95, 151), and in HSL hsl(214, 48%, 40%).

Is #355F97 accessible as text?

On white, #355F97 has a contrast ratio of 6.49:1 (passes WCAG AA for body text); on black it is 3.24:1 (fails). For text placed on #355F97, use white for the best readability.

What is the closest Tailwind color to #355F97?

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

What colors go well with #355F97?

#355F97 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #976D35. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #355F97 below.

Is #355F97 good for buttons?

#355F97 works well for buttons and highlights, but use white text on #355F97 — black text only reaches 3.24:1, below the 4.5:1 needed for normal-size labels.

Is #355F97 the same as CSS darkslateblue?

No — #355F97 is not the CSS named color darkslateblue, but darkslateblue (#483D8B) is the closest CSS named color.

#355F97 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #355F97

Not just a swatch — here's how #355F97 works with other colors. Named schemes with #355F97 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #355F97 Accent #A5C4C1 Surface #DDDBBF Secondary #9AA0A1 Anchor #20344A

Lapis Lazuli 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 #355F97 Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #5C83B7

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

Vintage Leather Lead · 5 colors

Lead #355F97 Secondary #7F4537 Surface #E1DDC1 Accent #375246 Anchor #57233B

Lapis Lazuli 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 #355F97 Surface #EDE9D6 Anchor #5A2145 Accent #E4C2CA Secondary #322B2F

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

Minimal Editorial Surface · 5 colors

Surface #F6F4EF Accent #355F97 Secondary #79889D Support #9D8F89 Ink #16140F

Lapis Lazuli 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 Lapis Lazuli carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #355F97 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 23/100

Cool

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

Softness 41/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 52/100

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 52/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 58/100

Moderate

Restrained and premium — deep, quiet, high-end packaging and fashion.

Brand distinctiveness 28/100

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 23/100

Low

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

Print safety 79/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #355F97

For UI

For branding

For interior

For fashion

People also use #355F97 with

Verdigris Dark Slate Blue Olive Brown 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 6.5:1. Use

Subtle surface Use #D6DFEB for cards and hover fills. Tint 80

Avoid beside #353F97 — 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 #355F97 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: #355F97;
  --color-base-rgb: 53 95 151;
  --color-base-oklch: oklch(48.3% 0.102 256.2);
  --color-50: #F3F7FB;
  --color-100: #E0E9F5;
  --color-200: #C3D4EA;
  --color-300: #99B3D7;
  --color-400: #7194C1;
  --color-500: #5075A5;
  --color-600: #435D7F;
  --color-700: #34455B;
  --color-800: #252F3C;
  --color-900: #181E25;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  lapis-lazuli: {
    50: '#F3F7FB',
    100: '#E0E9F5',
    200: '#C3D4EA',
    300: '#99B3D7',
    400: '#7194C1',
    500: '#5075A5',
    600: '#435D7F',
    700: '#34455B',
    800: '#252F3C',
    900: '#181E25',
  },
}

$base: #355F97;
$base-ink: #FFFFFF;
$base-50: #F3F7FB;
$base-100: #E0E9F5;
$base-200: #C3D4EA;
$base-300: #99B3D7;
$base-400: #7194C1;
$base-500: #5075A5;
$base-600: #435D7F;
$base-700: #34455B;
$base-800: #252F3C;
$base-900: #181E25;
$base-hover: #2A4C79;
$base-subtle: #C0CFE2;

{
    "color": {
        "base": {
            "value": "#355F97",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F3F7FB",
                "type": "color"
            },
            "100": {
                "value": "#E0E9F5",
                "type": "color"
            },
            "200": {
                "value": "#C3D4EA",
                "type": "color"
            },
            "300": {
                "value": "#99B3D7",
                "type": "color"
            },
            "400": {
                "value": "#7194C1",
                "type": "color"
            },
            "500": {
                "value": "#5075A5",
                "type": "color"
            },
            "600": {
                "value": "#435D7F",
                "type": "color"
            },
            "700": {
                "value": "#34455B",
                "type": "color"
            },
            "800": {
                "value": "#252F3C",
                "type": "color"
            },
            "900": {
                "value": "#181E25",
                "type": "color"
            }
        }
    }
}

Palettes built on #355F97

Color Lab

Pairs with #355F97

UI roles & guardrails

In real applications

Scales

Every model

Export