What color is #237FC6?

#237FC6 is a medium, vivid cyan-blue. In RGB it is rgb(35, 127, 198), and in HSL hsl(206, 70%, 46%).

Is #237FC6 accessible as text?

On white, #237FC6 has a contrast ratio of 4.27:1 (fails WCAG AA for body text); on black it is 4.92:1 (passes). For text placed on #237FC6, use black for the best readability.

What is the closest Tailwind color to #237FC6?

The nearest Tailwind CSS token is sky-600 (#0084D1).

What colors go well with #237FC6?

#237FC6 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #C76A23. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #237FC6 below.

Is #237FC6 good for buttons?

#237FC6 works well for buttons and highlights, but use black text on #237FC6 — white text only reaches 4.27:1, below the 4.5:1 needed for normal-size labels.

Is #237FC6 the same as CSS steelblue?

No — #237FC6 is not the CSS named color steelblue, but steelblue (#4682B4) is the closest CSS named color.

#237FC6 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #237FC6

Not just a swatch — here's how #237FC6 works with other colors. Named schemes with #237FC6 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #237FC6 Accent #A5C4C0 Surface #DDDBBF Secondary #9AA0A1 Anchor #20344A

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 #237FC6 Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #59A4E6

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 #237FC6 Secondary #7F4438 Surface #E1DDC0 Accent #375245 Anchor #57233C

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 #237FC6 Surface #EDE9D6 Anchor #5A2245 Accent #E4C2CB Secondary #322B2F

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 #237FC6 Secondary #8DA8C1 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.

Build a working theme in the generator →

Color Lab

How #237FC6 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 11/100

Cool

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

Softness 44/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 43/100

Moderate

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

Naturalness 0/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 43/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 48/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 37/100

Low

Recognisable but shares space with nearby hues.

UI accent fit 96/100

Very high

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

Surface fit 18/100

Very low

Too saturated or mid-toned for big areas — keep it to accents.

Print safety 69/100

High

Prints close, with a slight loss of vibrancy.

Pairs with #237FC6

For UI

For branding

For interior

For fashion

People also use #237FC6 with

Turquoise Medium Blue Chocolate Gainsboro 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 #141310 text at 4.4:1. Use

Subtle surface Use #D6E5F1 for cards and hover fills. Tint 80

Avoid beside #234AC7 — 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 #237FC6 at work across the surfaces designers actually ship.

Website / UI

Northwind Sign up

Build faster.

A working theme, generated in seconds.

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: #237FC6;
  --color-base-rgb: 35 127 198;
  --color-base-oklch: oklch(57.9% 0.137 247.1);
  --color-50: #F1F8FD;
  --color-100: #DBEDFA;
  --color-200: #BADAF3;
  --color-300: #8ABEE5;
  --color-400: #5FA1D3;
  --color-500: #3D83B8;
  --color-600: #35678C;
  --color-700: #2B4B64;
  --color-800: #203341;
  --color-900: #152028;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  steel-blue: {
    50: '#F1F8FD',
    100: '#DBEDFA',
    200: '#BADAF3',
    300: '#8ABEE5',
    400: '#5FA1D3',
    500: '#3D83B8',
    600: '#35678C',
    700: '#2B4B64',
    800: '#203341',
    900: '#152028',
  },
}

$base: #237FC6;
$base-ink: #141310;
$base-50: #F1F8FD;
$base-100: #DBEDFA;
$base-200: #BADAF3;
$base-300: #8ABEE5;
$base-400: #5FA1D3;
$base-500: #3D83B8;
$base-600: #35678C;
$base-700: #2B4B64;
$base-800: #203341;
$base-900: #152028;
$base-hover: #1C67A0;
$base-subtle: #C0D9EC;

{
    "color": {
        "base": {
            "value": "#237FC6",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F1F8FD",
                "type": "color"
            },
            "100": {
                "value": "#DBEDFA",
                "type": "color"
            },
            "200": {
                "value": "#BADAF3",
                "type": "color"
            },
            "300": {
                "value": "#8ABEE5",
                "type": "color"
            },
            "400": {
                "value": "#5FA1D3",
                "type": "color"
            },
            "500": {
                "value": "#3D83B8",
                "type": "color"
            },
            "600": {
                "value": "#35678C",
                "type": "color"
            },
            "700": {
                "value": "#2B4B64",
                "type": "color"
            },
            "800": {
                "value": "#203341",
                "type": "color"
            },
            "900": {
                "value": "#152028",
                "type": "color"
            }
        }
    }
}

Palettes built on #237FC6

Color Lab

Pairs with #237FC6

UI roles & guardrails

In real applications

Scales

Every model

Export