What color is #AA591B?

#AA591B is a dark, vivid brown. In RGB it is rgb(170, 89, 27), and in HSL hsl(26, 73%, 39%).

Is #AA591B accessible as text?

On white, #AA591B has a contrast ratio of 5.06:1 (passes WCAG AA for body text); on black it is 4.15:1 (fails). For text placed on #AA591B, use white for the best readability.

What is the closest Tailwind color to #AA591B?

The nearest Tailwind CSS token is yellow-700 (#A65F00).

What colors go well with #AA591B?

#AA591B pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #1B6DAC. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #AA591B below.

Is #AA591B good for buttons?

#AA591B works well for buttons and highlights, but use white text on #AA591B — black text only reaches 4.15:1, below the 4.5:1 needed for normal-size labels.

Is #AA591B the same as CSS sienna?

No — #AA591B is not the CSS named color sienna, but sienna (#A0522D) is the closest CSS named color.

#AA591B Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #AA591B

Not just a swatch — here's how #AA591B works with other colors. Named schemes with #AA591B in its natural role, and a note on why the supporting colors balance it.

Warm Autumn Interior Dominant · 5 colors

Dominant #AA591B Secondary #B5651E Accent #747844 Surface #F4ECDD Anchor #3B2A20

This palette keeps Sienna as the dominant warm neutral, balanced by muted terracotta and olive earth tones and grounded by a deep espresso anchor.

Modern Café Dominant · 5 colors

Dominant #AA591B Anchor #3A2A20 Surface #F0E3D0 Accent #939766 Secondary #3B3833

Sienna anchors this café scheme as the warm mid-tone, lifted by latte cream and a muted sage accent and grounded by espresso brown and a warm charcoal.

Vintage Leather Lead · 5 colors

Lead #AA591B Secondary #7A4A24 Surface #E9DAC0 Accent #41503B Anchor #5B222B

Sienna 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 #AA591B Surface #F3E7D6 Anchor #602034 Accent #E6C2C0 Secondary #332B2D

Sienna sits between cream and a deep berry here, softened by a blush accent and grounded by charcoal.

Minimal Editorial Surface · 5 colors

Surface #F7F4EF Accent #AA591B Secondary #B39582 Support #9A9186 Ink #17140F

Sienna 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 Sienna carrying the quiet middle.

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Color Lab

How #AA591B 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 88/100

Warm

Reads warm and advancing — inviting, energetic, draws the eye forward.

Softness 43/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 46/100

Moderate

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

Naturalness 100/100

Very high

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

Vintage feel 79/100

High

Faded, nostalgic quality — editorial, heritage and retro work.

Luxury 52/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 34/100

Low

Recognisable but shares space with nearby hues.

UI accent fit 99/100

Very high

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

Surface fit 19/100

Very low

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

Print safety 86/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #AA591B

For UI

For branding

For interior

For fashion

People also use #AA591B with

Fire Engine Red Citron Lapis Lazuli Greige Taupe

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 5.1:1. Use

Subtle surface Use #F0DED0 for cards and hover fills. Tint 80

Avoid beside #AC8A1B — 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 #AA591B 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: #AA591B;
  --color-base-rgb: 170 89 27;
  --color-base-oklch: oklch(55.1% 0.127 52.7);
  --color-50: #FDF7F1;
  --color-100: #FAE8DB;
  --color-200: #F4D2B9;
  --color-300: #E7B188;
  --color-400: #D5915D;
  --color-500: #BB723A;
  --color-600: #8E5B33;
  --color-700: #65432A;
  --color-800: #422E1F;
  --color-900: #281D15;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  sienna: {
    50: '#FDF7F1',
    100: '#FAE8DB',
    200: '#F4D2B9',
    300: '#E7B188',
    400: '#D5915D',
    500: '#BB723A',
    600: '#8E5B33',
    700: '#65432A',
    800: '#422E1F',
    900: '#281D15',
  },
}

$base: #AA591B;
$base-ink: #FFFFFF;
$base-50: #FDF7F1;
$base-100: #FAE8DB;
$base-200: #F4D2B9;
$base-300: #E7B188;
$base-400: #D5915D;
$base-500: #BB723A;
$base-600: #8E5B33;
$base-700: #65432A;
$base-800: #422E1F;
$base-900: #281D15;
$base-hover: #8A4815;
$base-subtle: #EACDB6;

{
    "color": {
        "base": {
            "value": "#AA591B",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#FDF7F1",
                "type": "color"
            },
            "100": {
                "value": "#FAE8DB",
                "type": "color"
            },
            "200": {
                "value": "#F4D2B9",
                "type": "color"
            },
            "300": {
                "value": "#E7B188",
                "type": "color"
            },
            "400": {
                "value": "#D5915D",
                "type": "color"
            },
            "500": {
                "value": "#BB723A",
                "type": "color"
            },
            "600": {
                "value": "#8E5B33",
                "type": "color"
            },
            "700": {
                "value": "#65432A",
                "type": "color"
            },
            "800": {
                "value": "#422E1F",
                "type": "color"
            },
            "900": {
                "value": "#281D15",
                "type": "color"
            }
        }
    }
}

Palettes built on #AA591B

Color Lab

Pairs with #AA591B

UI roles & guardrails

In real applications

Scales

Every model

Export