What color is #313758?

#313758 is a dark, muted blue-violet. In RGB it is rgb(49, 55, 88), and in HSL hsl(231, 28%, 27%).

Is #313758 accessible as text?

On white, #313758 has a contrast ratio of 11.55:1 (passes WCAG AA for body text); on black it is 1.82:1 (fails). For text placed on #313758, use white for the best readability.

What is the closest Tailwind color to #313758?

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

What colors go well with #313758?

#313758 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #585232. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #313758 below.

Is #313758 good for buttons?

#313758 works well for buttons and highlights, but use white text on #313758 — black text only reaches 1.82:1, below the 4.5:1 needed for normal-size labels.

Is #313758 the same as CSS darkslategray?

No — #313758 is not the CSS named color darkslategray, but darkslategray (#2F4F4F) is the closest CSS named color.

#313758 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #313758

Not just a swatch — here's how #313758 works with other colors. Named schemes with #313758 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #313758 Accent #A5C4C2 Surface #EAD5BF 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 #313758 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.

Vintage Leather Lead · 5 colors

Lead #313758 Secondary #7F4534 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.

Luxury Packaging Feature · 5 colors

Feature #313758 Anchor #141210 Accent #DC9659 Secondary #262833 Surface #F3ECE3

Charcoal carries the depth in this luxury scheme, offset by a brass accent and near-black and held together by a deep neutral and an off-white surface.

Minimal Editorial Surface · 5 colors

Surface #F8F4EF Accent #313758 Secondary #5C5F6B Support #9D9088 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 #313758 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 38/100

Cool

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

Softness 34/100

Low

Middle-weight — neither delicate nor heavy.

Depth 63/100

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 38/100

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 22/100

Low

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

UI accent fit 43/100

Moderate

Workable accent with care around contrast.

Surface fit 45/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 91/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #313758

For UI

For branding

For interior

For fashion

People also use #313758 with

Feldgrau Charcoal Army Green 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 11.6:1. Use

Subtle surface Use #D2D5E1 for cards and hover fills. Tint 80

Avoid beside #393258 — 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 #313758 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: #313758;
  --color-base-rgb: 49 55 88;
  --color-base-oklch: oklch(34.7% 0.058 275.1);
  --color-50: #F5F6FA;
  --color-100: #E5E6F1;
  --color-200: #CBCEE2;
  --color-300: #A6ABCA;
  --color-400: #8289B0;
  --color-500: #626993;
  --color-600: #4F5572;
  --color-700: #3C3F53;
  --color-800: #2A2C37;
  --color-900: #1B1C22;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  charcoal: {
    50: '#F5F6FA',
    100: '#E5E6F1',
    200: '#CBCEE2',
    300: '#A6ABCA',
    400: '#8289B0',
    500: '#626993',
    600: '#4F5572',
    700: '#3C3F53',
    800: '#2A2C37',
    900: '#1B1C22',
  },
}

$base: #313758;
$base-ink: #FFFFFF;
$base-50: #F5F6FA;
$base-100: #E5E6F1;
$base-200: #CBCEE2;
$base-300: #A6ABCA;
$base-400: #8289B0;
$base-500: #626993;
$base-600: #4F5572;
$base-700: #3C3F53;
$base-800: #2A2C37;
$base-900: #1B1C22;
$base-hover: #282C47;
$base-subtle: #BBBFD3;

{
    "color": {
        "base": {
            "value": "#313758",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F5F6FA",
                "type": "color"
            },
            "100": {
                "value": "#E5E6F1",
                "type": "color"
            },
            "200": {
                "value": "#CBCEE2",
                "type": "color"
            },
            "300": {
                "value": "#A6ABCA",
                "type": "color"
            },
            "400": {
                "value": "#8289B0",
                "type": "color"
            },
            "500": {
                "value": "#626993",
                "type": "color"
            },
            "600": {
                "value": "#4F5572",
                "type": "color"
            },
            "700": {
                "value": "#3C3F53",
                "type": "color"
            },
            "800": {
                "value": "#2A2C37",
                "type": "color"
            },
            "900": {
                "value": "#1B1C22",
                "type": "color"
            }
        }
    }
}