What color is #317FA3?

#317FA3 is a medium cyan-blue. In RGB it is rgb(49, 127, 163), and in HSL hsl(199, 54%, 42%).

Is #317FA3 accessible as text?

On white, #317FA3 has a contrast ratio of 4.47:1 (fails WCAG AA for body text); on black it is 4.70:1 (passes). For text placed on #317FA3, use black for the best readability.

What is the closest Tailwind color to #317FA3?

The nearest Tailwind CSS token is cyan-700 (#007595).

What colors go well with #317FA3?

#317FA3 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #A55631. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #317FA3 below.

Is #317FA3 good for buttons?

#317FA3 works well for buttons and highlights, but use black text on #317FA3 — white text only reaches 4.47:1, below the 4.5:1 needed for normal-size labels.

Is #317FA3 the same as CSS steelblue?

No — #317FA3 is not the CSS named color steelblue, but steelblue (#4682B4) is the closest CSS named color.

#317FA3 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #317FA3

Not just a swatch — here's how #317FA3 works with other colors. Named schemes with #317FA3 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #317FA3 Accent #A6C4BF Surface #DEDABF Secondary #9AA0A0 Anchor #1F344A

Steel Blue 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 #317FA3 Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #61A3C5

Steel 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 Steel Blue.

Vintage Leather Lead · 5 colors

Lead #317FA3 Secondary #6F5216 Surface #E2DCC0 Accent #385244 Anchor #56233D

Steel Blue 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 #317FA3 Surface #EEE9D6 Anchor #592247 Accent #E4C2CC Secondary #322B30

Steel Blue 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 #317FA3 Secondary #8CA4B1 Support #969386 Ink #16140F

Steel 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 Steel Blue carrying the quiet middle.

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Color Lab

How #317FA3 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 22/100

Cool

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

Softness 48/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 43/100

Moderate

Mid depth — usable as an accent or a muted ground.

Naturalness 1/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 57/100

Moderate

Faded, nostalgic quality — editorial, heritage and retro work.

Luxury 50/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 25/100

Low

Quiet and neutral — a supporting tone, not a signature.

UI accent fit 89/100

Very high

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

Surface fit 30/100

Low

Usable as a tinted surface in measured doses.

Print safety 76/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #317FA3

For UI

For branding

For interior

For fashion

People also use #317FA3 with

Medium Aquamarine Cobalt Blue Sienna Platinum Charcoal

UI roles & guardrails

Primary action Too mid-tone for a filled button — darken for the fill. AA Large

Body text Do not use for body copy on light surfaces. Avoid

Large display Fine for headings 24px+ on white. Pass

Background Pair with white text at 4.5:1. Use

Subtle surface Use #D6E6ED for cards and hover fills. Tint 80

Avoid beside #315AA5 — 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 #317FA3 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: #317FA3;
  --color-base-rgb: 49 127 163;
  --color-base-oklch: oklch(56.4% 0.093 231.9);
  --color-50: #F3F9FC;
  --color-100: #DFEFF6;
  --color-200: #C0DEEC;
  --color-300: #95C4DA;
  --color-400: #6CA9C6;
  --color-500: #4B8CAA;
  --color-600: #3F6D83;
  --color-700: #324F5D;
  --color-800: #23353D;
  --color-900: #172126;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  steel-blue: {
    50: '#F3F9FC',
    100: '#DFEFF6',
    200: '#C0DEEC',
    300: '#95C4DA',
    400: '#6CA9C6',
    500: '#4B8CAA',
    600: '#3F6D83',
    700: '#324F5D',
    800: '#23353D',
    900: '#172126',
  },
}

$base: #317FA3;
$base-ink: #141310;
$base-50: #F3F9FC;
$base-100: #DFEFF6;
$base-200: #C0DEEC;
$base-300: #95C4DA;
$base-400: #6CA9C6;
$base-500: #4B8CAA;
$base-600: #3F6D83;
$base-700: #324F5D;
$base-800: #23353D;
$base-900: #172126;
$base-hover: #276784;
$base-subtle: #C0D9E5;

{
    "color": {
        "base": {
            "value": "#317FA3",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F3F9FC",
                "type": "color"
            },
            "100": {
                "value": "#DFEFF6",
                "type": "color"
            },
            "200": {
                "value": "#C0DEEC",
                "type": "color"
            },
            "300": {
                "value": "#95C4DA",
                "type": "color"
            },
            "400": {
                "value": "#6CA9C6",
                "type": "color"
            },
            "500": {
                "value": "#4B8CAA",
                "type": "color"
            },
            "600": {
                "value": "#3F6D83",
                "type": "color"
            },
            "700": {
                "value": "#324F5D",
                "type": "color"
            },
            "800": {
                "value": "#23353D",
                "type": "color"
            },
            "900": {
                "value": "#172126",
                "type": "color"
            }
        }
    }
}

Palettes built on #317FA3

Color Lab

Pairs with #317FA3

UI roles & guardrails

In real applications

Scales

Every model

Export