What color is #123829?

#123829 is a very dark teal-green. In RGB it is rgb(18, 56, 41), and in HSL hsl(156, 51%, 15%).

Is #123829 accessible as text?

On white, #123829 has a contrast ratio of 12.94:1 (passes WCAG AA for body text); on black it is 1.62:1 (fails). For text placed on #123829, use white for the best readability.

What is the closest Tailwind color to #123829?

The nearest Tailwind CSS token is teal-950 (#022F2E).

What colors go well with #123829?

#123829 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #3A1322. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #123829 below.

Is #123829 good for buttons?

#123829 works well for buttons and highlights, but use white text on #123829 — black text only reaches 1.62:1, below the 4.5:1 needed for normal-size labels.

Is #123829 the same as CSS darkslategray?

No — #123829 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.

#123829 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #123829

Not just a swatch — here's how #123829 works with other colors. Named schemes with #123829 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #123829 Accent #A7C4BB Surface #E1D9BE Secondary #9AA0A0 Anchor #1B3548

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

Botanical Studio Lead · 5 colors

Lead #123829 Secondary #496C3E Accent #AB6D00 Surface #EEEAD6 Anchor #3C2F20

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

Nordic Calm Accent · 5 colors

Accent #123829 Secondary #ADB4B7 Surface #F1F2F0 Support #7895A3 Anchor #2D3236

Sacramento Green keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.

Luxury Packaging Feature · 5 colors

Feature #123829 Anchor #141210 Accent #BDA84C Secondary #202C26 Surface #F1EDE3

Sacramento Green 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 #F7F4EF Accent #123829 Secondary #4C5852 Support #989286 Ink #17140F

Sacramento 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 Sacramento Green carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #123829 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 44/100

Neutral

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

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 44/100

Moderate

Loosely natural — an earthy edge without being rustic.

Vintage feel 36/100

Low

A faint retro warmth without tipping into sepia.

Luxury 69/100

High

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

Brand distinctiveness 20/100

Very low

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

UI accent fit 31/100

Low

Workable accent with care around contrast.

Surface fit 49/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 90/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #123829

For UI

For branding

For interior

For fashion

People also use #123829 with

Castleton Green Gunmetal Gray Oxblood 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 12.9:1. Use

Subtle surface Use #C4E4D7 for cards and hover fills. Tint 80

Avoid beside #133A37 — 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 #123829 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: #123829;
  --color-base-rgb: 18 56 41;
  --color-base-oklch: oklch(30.8% 0.051 164.3);
  --color-50: #F3FCF8;
  --color-100: #E0F6ED;
  --color-200: #C1EBDA;
  --color-300: #97D9BE;
  --color-400: #6FC3A1;
  --color-500: #4EA783;
  --color-600: #418167;
  --color-700: #335C4C;
  --color-800: #243D33;
  --color-900: #182620;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  sacramento-green: {
    50: '#F3FCF8',
    100: '#E0F6ED',
    200: '#C1EBDA',
    300: '#97D9BE',
    400: '#6FC3A1',
    500: '#4EA783',
    600: '#418167',
    700: '#335C4C',
    800: '#243D33',
    900: '#182620',
  },
}

$base: #123829;
$base-ink: #FFFFFF;
$base-50: #F3FCF8;
$base-100: #E0F6ED;
$base-200: #C1EBDA;
$base-300: #97D9BE;
$base-400: #6FC3A1;
$base-500: #4EA783;
$base-600: #418167;
$base-700: #335C4C;
$base-800: #243D33;
$base-900: #182620;
$base-hover: #0F2E22;
$base-subtle: #A5D7C3;

{
    "color": {
        "base": {
            "value": "#123829",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F3FCF8",
                "type": "color"
            },
            "100": {
                "value": "#E0F6ED",
                "type": "color"
            },
            "200": {
                "value": "#C1EBDA",
                "type": "color"
            },
            "300": {
                "value": "#97D9BE",
                "type": "color"
            },
            "400": {
                "value": "#6FC3A1",
                "type": "color"
            },
            "500": {
                "value": "#4EA783",
                "type": "color"
            },
            "600": {
                "value": "#418167",
                "type": "color"
            },
            "700": {
                "value": "#335C4C",
                "type": "color"
            },
            "800": {
                "value": "#243D33",
                "type": "color"
            },
            "900": {
                "value": "#182620",
                "type": "color"
            }
        }
    }
}