What color is #31395D?

#31395D is a dark, muted blue-violet. In RGB it is rgb(49, 57, 93), and in HSL hsl(229, 31%, 28%).

Is #31395D accessible as text?

On white, #31395D has a contrast ratio of 11.21:1 (passes WCAG AA for body text); on black it is 1.87:1 (fails). For text placed on #31395D, use white for the best readability.

What is the closest Tailwind color to #31395D?

The nearest Tailwind CSS token is mauve-700 (#463947).

What colors go well with #31395D?

#31395D pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #5E5531. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #31395D below.

Is #31395D good for buttons?

#31395D works well for buttons and highlights, but use white text on #31395D — black text only reaches 1.87:1, below the 4.5:1 needed for normal-size labels.

Is #31395D the same as CSS darkslategray?

No — #31395D is not the CSS named color darkslategray, but darkslategray (#2F4F4F) is the closest CSS named color.

#31395D Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #31395D

Not just a swatch — here's how #31395D works with other colors. Named schemes with #31395D in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #31395D Accent #A5C4C2 Surface #EAD5C0 Secondary #9AA0A1 Anchor #21344A

Charcoal 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 #31395D Secondary #AEB4B8 Surface #F1F2F0 Support #7E92A7 Anchor #2E3236

Charcoal 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 #31395D Surface #14161A Highlight #F4F6F8 Secondary #5B6672 Accent #515A7D

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

Vintage Leather Lead · 5 colors

Lead #31395D Secondary #7F4535 Surface #EED7C2 Accent #365247 Anchor #582239

Charcoal plays the worn-leather lead, deepened by saddle brown and an oxblood anchor, softened by aged cream and cooled by a muted forest green.

Minimal Editorial Surface · 5 colors

Surface #F8F4EF Accent #31395D Secondary #5D616F Support #9D8F88 Ink #18140F

Charcoal 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 Charcoal carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #31395D 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 36/100

Cool

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

Softness 34/100

Low

Middle-weight — neither delicate nor heavy.

Depth 62/100

High

Deep and grounding — anchors a layout, strong dark-mode base.

Naturalness 0/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 40/100

Low

A faint retro warmth without tipping into sepia.

Luxury 66/100

High

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

Brand distinctiveness 25/100

Low

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

UI accent fit 46/100

Moderate

Workable accent with care around contrast.

Surface fit 43/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 90/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #31395D

For UI

For branding

For interior

For fashion

People also use #31395D with

Teal Blue Charcoal Coffee Gainsboro Gunmetal Gray

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 11.2:1. Use

Subtle surface Use #D2D5E2 for cards and hover fills. Tint 80

Avoid beside #38315E — 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 #31395D 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: #31395D;
  --color-base-rgb: 49 57 93;
  --color-base-oklch: oklch(35.5% 0.064 273.2);
  --color-50: #F5F6FA;
  --color-100: #E4E6F1;
  --color-200: #CACEE3;
  --color-300: #A4ABCC;
  --color-400: #7F89B3;
  --color-500: #5F6996;
  --color-600: #4E5574;
  --color-700: #3B3F54;
  --color-800: #292C38;
  --color-900: #1A1C23;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  charcoal: {
    50: '#F5F6FA',
    100: '#E4E6F1',
    200: '#CACEE3',
    300: '#A4ABCC',
    400: '#7F89B3',
    500: '#5F6996',
    600: '#4E5574',
    700: '#3B3F54',
    800: '#292C38',
    900: '#1A1C23',
  },
}

$base: #31395D;
$base-ink: #FFFFFF;
$base-50: #F5F6FA;
$base-100: #E4E6F1;
$base-200: #CACEE3;
$base-300: #A4ABCC;
$base-400: #7F89B3;
$base-500: #5F6996;
$base-600: #4E5574;
$base-700: #3B3F54;
$base-800: #292C38;
$base-900: #1A1C23;
$base-hover: #272E4B;
$base-subtle: #BBC0D5;

{
    "color": {
        "base": {
            "value": "#31395D",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F5F6FA",
                "type": "color"
            },
            "100": {
                "value": "#E4E6F1",
                "type": "color"
            },
            "200": {
                "value": "#CACEE3",
                "type": "color"
            },
            "300": {
                "value": "#A4ABCC",
                "type": "color"
            },
            "400": {
                "value": "#7F89B3",
                "type": "color"
            },
            "500": {
                "value": "#5F6996",
                "type": "color"
            },
            "600": {
                "value": "#4E5574",
                "type": "color"
            },
            "700": {
                "value": "#3B3F54",
                "type": "color"
            },
            "800": {
                "value": "#292C38",
                "type": "color"
            },
            "900": {
                "value": "#1A1C23",
                "type": "color"
            }
        }
    }
}