What color is #135239?

#135239 is a dark teal-green. In RGB it is rgb(19, 82, 57), and in HSL hsl(156, 62%, 20%).

Is #135239 accessible as text?

On white, #135239 has a contrast ratio of 9.16:1 (passes WCAG AA for body text); on black it is 2.29:1 (fails). For text placed on #135239, use white for the best readability.

What is the closest Tailwind color to #135239?

The nearest Tailwind CSS token is emerald-900 (#004F3B).

What colors go well with #135239?

#135239 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #53132D. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #135239 below.

Is #135239 good for buttons?

#135239 works well for buttons and highlights, but use white text on #135239 — black text only reaches 2.29:1, below the 4.5:1 needed for normal-size labels.

Is #135239 the same as CSS darkslategray?

No — #135239 is not the CSS named color darkslategray, but darkslategray (#2F4F4F) is the closest CSS named color by perceptual color distance — it sits in a different color family, so treat it as a rough reference, not a match.

#135239 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #135239

Not just a swatch — here's how #135239 works with other colors. Named schemes with #135239 in its natural role, and a note on why the supporting colors balance it.

Botanical Studio Lead · 5 colors

Lead #135239 Secondary #496C3E Accent #AB6D00 Surface #EEEAD6 Anchor #3C2F20

Castleton Green leads this botanical set among foliage greens and a terracotta accent, softened by cream and grounded in bark brown.

Coastal Morning Lead · 5 colors

Lead #135239 Accent #A7C4BB Surface #E1D9BE Secondary #9AA0A0 Anchor #1B3648

Castleton Green 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 #135239 Secondary #ADB4B7 Surface #F1F2F0 Support #7895A3 Anchor #2D3236

Castleton Green 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 #135239 Secondary #744F1A Surface #E5DBC0 Accent #3B5141 Anchor #5B2320

Castleton Green 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 #F7F4EF Accent #135239 Secondary #5F7168 Support #989286 Ink #17140F

Castleton Green 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 Castleton Green carrying the quiet middle.

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Color Lab

How #135239 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 41/100

Neutral

Balanced temperature — flexible, sits between warm and cool schemes.

Softness 36/100

Low

Middle-weight — neither delicate nor heavy.

Depth 59/100

Moderate

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

Naturalness 66/100

High

Organic, earthy character — at home in wellness, food and craft brands.

Vintage feel 51/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 64/100

High

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

Brand distinctiveness 21/100

Low

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

UI accent fit 61/100

High

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

Surface fit 36/100

Low

Usable as a tinted surface in measured doses.

Print safety 85/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #135239

For UI

For branding

For interior

For fashion

People also use #135239 with

Green Charcoal Tyrian Purple Platinum Dark Slate 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 9.2:1. Use

Subtle surface Use #C4E8DA for cards and hover fills. Tint 80

Avoid beside #13534E — 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 #135239 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: #135239;
  --color-base-rgb: 19 82 57;
  --color-base-oklch: oklch(39.2% 0.076 162.2);
  --color-50: #F2FDF8;
  --color-100: #DDF8ED;
  --color-200: #BDEFDB;
  --color-300: #90E0C0;
  --color-400: #66CCA3;
  --color-500: #44B185;
  --color-600: #3A8769;
  --color-700: #2E604C;
  --color-800: #223F33;
  --color-900: #162720;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  castleton-green: {
    50: '#F2FDF8',
    100: '#DDF8ED',
    200: '#BDEFDB',
    300: '#90E0C0',
    400: '#66CCA3',
    500: '#44B185',
    600: '#3A8769',
    700: '#2E604C',
    800: '#223F33',
    900: '#162720',
  },
}

$base: #135239;
$base-ink: #FFFFFF;
$base-50: #F2FDF8;
$base-100: #DDF8ED;
$base-200: #BDEFDB;
$base-300: #90E0C0;
$base-400: #66CCA3;
$base-500: #44B185;
$base-600: #3A8769;
$base-700: #2E604C;
$base-800: #223F33;
$base-900: #162720;
$base-hover: #10422E;
$base-subtle: #A5DFC8;

{
    "color": {
        "base": {
            "value": "#135239",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F2FDF8",
                "type": "color"
            },
            "100": {
                "value": "#DDF8ED",
                "type": "color"
            },
            "200": {
                "value": "#BDEFDB",
                "type": "color"
            },
            "300": {
                "value": "#90E0C0",
                "type": "color"
            },
            "400": {
                "value": "#66CCA3",
                "type": "color"
            },
            "500": {
                "value": "#44B185",
                "type": "color"
            },
            "600": {
                "value": "#3A8769",
                "type": "color"
            },
            "700": {
                "value": "#2E604C",
                "type": "color"
            },
            "800": {
                "value": "#223F33",
                "type": "color"
            },
            "900": {
                "value": "#162720",
                "type": "color"
            }
        }
    }
}

Palettes built on #135239

Color Lab

Pairs with #135239

UI roles & guardrails

In real applications

Scales

Every model

Export