What color is #397D99?

#397D99 is a medium cyan-blue. In RGB it is rgb(57, 125, 153), and in HSL hsl(198, 46%, 41%).

Is #397D99 accessible as text?

On white, #397D99 has a contrast ratio of 4.60:1 (passes WCAG AA for body text); on black it is 4.57:1 (passes). For text placed on #397D99, use white for the best readability.

What is the closest Tailwind color to #397D99?

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

What colors go well with #397D99?

#397D99 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #995538. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #397D99 below.

Is #397D99 good for buttons?

#397D99 works for buttons; white text has the higher contrast, so prefer it for labels.

Is #397D99 the same as CSS steelblue?

No — #397D99 is not the CSS named color steelblue, but steelblue (#4682B4) is the closest CSS named color.

#397D99 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #397D99

Not just a swatch — here's how #397D99 works with other colors. Named schemes with #397D99 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #397D99 Accent #A6C4BF Surface #DEDABF Secondary #9AA0A0 Anchor #1F344A

Teal Blue 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 #397D99 Secondary #AEB4B8 Surface #F1F2F0 Support #7B93A6 Anchor #2E3236

Teal Blue 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 #397D99 Surface #14161A Highlight #F4F6F8 Secondary #596672 Accent #66A1BB

Teal 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 Teal Blue.

Vintage Leather Lead · 5 colors

Lead #397D99 Secondary #6F5216 Surface #E2DCC0 Accent #385244 Anchor #56233D

Teal 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 #F6F4EF Accent #397D99 Secondary #8CA2AC Support #969386 Ink #16140F

Teal 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 Teal Blue carrying the quiet middle.

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Color Lab

How #397D99 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 26/100

Cool

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

Softness 49/100

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 22/100

Low

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

UI accent fit 85/100

Very high

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

Surface fit 33/100

Low

Usable as a tinted surface in measured doses.

Print safety 79/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #397D99

For UI

For branding

For interior

For fashion

People also use #397D99 with

Light Sea Green Dark Slate Blue Sienna Platinum 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 4.6:1. Use

Subtle surface Use #D7E5EB for cards and hover fills. Tint 80

Avoid beside #385C99 — 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 #397D99 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: #397D99;
  --color-base-rgb: 57 125 153;
  --color-base-oklch: oklch(55.8% 0.081 227.9);
  --color-50: #F3F9FB;
  --color-100: #E1EFF5;
  --color-200: #C4DEE9;
  --color-300: #9AC3D5;
  --color-400: #73A8BF;
  --color-500: #528BA3;
  --color-600: #446C7E;
  --color-700: #354F5A;
  --color-800: #25353C;
  --color-900: #182125;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  teal-blue: {
    50: '#F3F9FB',
    100: '#E1EFF5',
    200: '#C4DEE9',
    300: '#9AC3D5',
    400: '#73A8BF',
    500: '#528BA3',
    600: '#446C7E',
    700: '#354F5A',
    800: '#25353C',
    900: '#182125',
  },
}

$base: #397D99;
$base-ink: #FFFFFF;
$base-50: #F3F9FB;
$base-100: #E1EFF5;
$base-200: #C4DEE9;
$base-300: #9AC3D5;
$base-400: #73A8BF;
$base-500: #528BA3;
$base-600: #446C7E;
$base-700: #354F5A;
$base-800: #25353C;
$base-900: #182125;
$base-hover: #2D637A;
$base-subtle: #C2D8E2;

{
    "color": {
        "base": {
            "value": "#397D99",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F3F9FB",
                "type": "color"
            },
            "100": {
                "value": "#E1EFF5",
                "type": "color"
            },
            "200": {
                "value": "#C4DEE9",
                "type": "color"
            },
            "300": {
                "value": "#9AC3D5",
                "type": "color"
            },
            "400": {
                "value": "#73A8BF",
                "type": "color"
            },
            "500": {
                "value": "#528BA3",
                "type": "color"
            },
            "600": {
                "value": "#446C7E",
                "type": "color"
            },
            "700": {
                "value": "#354F5A",
                "type": "color"
            },
            "800": {
                "value": "#25353C",
                "type": "color"
            },
            "900": {
                "value": "#182125",
                "type": "color"
            }
        }
    }
}

Palettes built on #397D99

Color Lab

Pairs with #397D99

UI roles & guardrails

In real applications

Scales

Every model

Export