What color is #372D64?

#372D64 is a dark indigo. In RGB it is rgb(55, 45, 100), and in HSL hsl(251, 38%, 28%).

Is #372D64 accessible as text?

On white, #372D64 has a contrast ratio of 12.20:1 (passes WCAG AA for body text); on black it is 1.72:1 (fails). For text placed on #372D64, use white for the best readability.

What is the closest Tailwind color to #372D64?

The nearest Tailwind CSS token is indigo-900 (#312C85).

What colors go well with #372D64?

#372D64 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #59632C. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #372D64 below.

Is #372D64 good for buttons?

#372D64 works well for buttons and highlights, but use white text on #372D64 — black text only reaches 1.72:1, below the 4.5:1 needed for normal-size labels.

Is #372D64 the same as CSS midnightblue?

No — #372D64 is not the CSS named color midnightblue, but midnightblue (#191970) is the closest CSS named color.

#372D64 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #372D64

Not just a swatch — here's how #372D64 works with other colors. Named schemes with #372D64 in its natural role, and a note on why the supporting colors balance it.

Luxury Packaging Feature · 5 colors

Feature #372D64 Anchor #141210 Accent #DB9757 Secondary #282732 Surface #F3ECE3

Yale Blue 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.

Moody Editorial Color · 5 colors

Color #372D64 Anchor #2A2A2E Secondary #6E6E74 Surface #EEE5DA Accent #221031

Yale Blue adds the colour to this moody editorial scheme — charcoal and a mid-grey around it, a bone highlight, and a muted jewel accent drawn from Yale Blue.

Coastal Morning Lead · 5 colors

Lead #372D64 Accent #A5C4C3 Surface #E9D6BF Secondary #9AA0A1 Anchor #22334A

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

Vintage Leather Lead · 5 colors

Lead #372D64 Secondary #7E4633 Surface #EDD8C2 Accent #355247 Anchor #582238

Yale 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.

Minimal Editorial Surface · 5 colors

Surface #F8F4EF Accent #372D64 Secondary #5C5A6F Support #9D9088 Ink #18140F

Yale 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 Yale Blue carrying the quiet middle.

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Color Lab

How #372D64 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 31/100

Low

Firm and assertive — carries weight and contrast.

Depth 66/100

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 46/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 70/100

High

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

Brand distinctiveness 36/100

Low

Recognisable but shares space with nearby hues.

UI accent fit 48/100

Moderate

Workable accent with care around contrast.

Surface fit 35/100

Low

Usable as a tinted surface in measured doses.

Print safety 87/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #372D64

For UI

For branding

For interior

For fashion

People also use #372D64 with

Classic Blue Byzantium Dark Olive Green 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 12.2:1. Use

Subtle surface Use #D4D0E4 for cards and hover fills. Tint 80

Avoid beside #482C63 — 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 #372D64 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: #372D64;
  --color-base-rgb: 55 45 100;
  --color-base-oklch: oklch(33.9% 0.093 288.8);
  --color-50: #F5F4FB;
  --color-100: #E5E2F3;
  --color-200: #CCC7E6;
  --color-300: #A89FD0;
  --color-400: #857AB8;
  --color-500: #65599C;
  --color-600: #524979;
  --color-700: #3E3857;
  --color-800: #2B273A;
  --color-900: #1B1924;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  yale-blue: {
    50: '#F5F4FB',
    100: '#E5E2F3',
    200: '#CCC7E6',
    300: '#A89FD0',
    400: '#857AB8',
    500: '#65599C',
    600: '#524979',
    700: '#3E3857',
    800: '#2B273A',
    900: '#1B1924',
  },
}

$base: #372D64;
$base-ink: #FFFFFF;
$base-50: #F5F4FB;
$base-100: #E5E2F3;
$base-200: #CCC7E6;
$base-300: #A89FD0;
$base-400: #857AB8;
$base-500: #65599C;
$base-600: #524979;
$base-700: #3E3857;
$base-800: #2B273A;
$base-900: #1B1924;
$base-hover: #2B234F;
$base-subtle: #BEB8D8;

{
    "color": {
        "base": {
            "value": "#372D64",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F5F4FB",
                "type": "color"
            },
            "100": {
                "value": "#E5E2F3",
                "type": "color"
            },
            "200": {
                "value": "#CCC7E6",
                "type": "color"
            },
            "300": {
                "value": "#A89FD0",
                "type": "color"
            },
            "400": {
                "value": "#857AB8",
                "type": "color"
            },
            "500": {
                "value": "#65599C",
                "type": "color"
            },
            "600": {
                "value": "#524979",
                "type": "color"
            },
            "700": {
                "value": "#3E3857",
                "type": "color"
            },
            "800": {
                "value": "#2B273A",
                "type": "color"
            },
            "900": {
                "value": "#1B1924",
                "type": "color"
            }
        }
    }
}