What color is #170307?

#170307 is a very dark, vivid red. In RGB it is rgb(23, 3, 7), and in HSL hsl(348, 77%, 5%).

Is #170307 accessible as text?

On white, #170307 has a contrast ratio of 19.95:1 (passes WCAG AA for body text); on black it is 1.05:1 (fails). For text placed on #170307, use white for the best readability.

What is the closest Tailwind color to #170307?

The nearest Tailwind CSS token is mauve-950 (#0C090C).

What colors go well with #170307?

#170307 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #031713. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #170307 below.

Is #170307 good for buttons?

#170307 works well for buttons and highlights, but use white text on #170307 — black text only reaches 1.05:1, below the 4.5:1 needed for normal-size labels.

Is #170307 the same as CSS black?

No — #170307 is not the CSS named color black, but black (#000000) is the closest CSS named color.

#170307 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #170307

Not just a swatch — here's how #170307 works with other colors. Named schemes with #170307 in its natural role, and a note on why the supporting colors balance it.

Vintage Leather Lead · 5 colors

Lead #170307 Secondary #7C482A Surface #EBD9C1 Accent #444F39 Anchor #5A2230

Jet Black plays the worn-leather lead, deepened by saddle brown and an oxblood anchor, softened by aged cream and cooled by a muted forest green.

Warm Autumn Interior Dominant · 5 colors

Dominant #170307 Secondary #B8622B Accent #7A7641 Surface #F5EBDD Anchor #3C2A21

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

Japanese Sand Base · 5 colors

Base #170307 Surface #F0E8DC Highlight #F7F1E7 Secondary #BBAEA0 Ink #2B2723

Jet Black sets a calm, sun-bleached base here, wrapped in bone and paper off-whites and a soft greige, with a single ink accent for wabi-sabi restraint.

Luxury Packaging Feature · 5 colors

Feature #170307 Anchor #141210 Accent #D39D4F Secondary #322527 Surface #F3EDE3

Jet Black 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 #170307 Secondary #302728 Support #9B9087 Ink #17140F

Jet Black 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 Jet Black carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #170307 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 59/100

Neutral

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

Softness 16/100

Very low

Firm and assertive — carries weight and contrast.

Depth 81/100

Very high

Deep and grounding — anchors a layout, strong dark-mode base.

Naturalness 24/100

Low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 27/100

Low

A faint retro warmth without tipping into sepia.

Luxury 81/100

Very high

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

Brand distinctiveness 16/100

Very low

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

UI accent fit 5/100

Very low

Weak as an action color — too pale, too dark or too muted to signal.

Surface fit 63/100

High

Calm enough for large fills — backgrounds, cards, sections.

Print safety 96/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #170307

For UI

For branding

For interior

For fashion

People also use #170307 with

Deep Purple Jet Black Gainsboro Taupe

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 20.0:1. Use

Subtle surface Use #E9B4BE for cards and hover fills. Tint 80

Avoid beside #170603 — 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 #170307 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: #170307;
  --color-base-rgb: 23 3 7;
  --color-base-oklch: oklch(14.3% 0.041 7.2);
  --color-50: #FEF1F3;
  --color-100: #FBDAE1;
  --color-200: #F5B7C3;
  --color-300: #E9869A;
  --color-400: #D95973;
  --color-500: #BE3752;
  --color-600: #913144;
  --color-700: #662835;
  --color-800: #431E25;
  --color-900: #291418;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  jet-black: {
    50: '#FEF1F3',
    100: '#FBDAE1',
    200: '#F5B7C3',
    300: '#E9869A',
    400: '#D95973',
    500: '#BE3752',
    600: '#913144',
    700: '#662835',
    800: '#431E25',
    900: '#291418',
  },
}

$base: #170307;
$base-ink: #FFFFFF;
$base-50: #FEF1F3;
$base-100: #FBDAE1;
$base-200: #F5B7C3;
$base-300: #E9869A;
$base-400: #D95973;
$base-500: #BE3752;
$base-600: #913144;
$base-700: #662835;
$base-800: #431E25;
$base-900: #291418;
$base-hover: #120205;
$base-subtle: #E18C9D;

{
    "color": {
        "base": {
            "value": "#170307",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#FEF1F3",
                "type": "color"
            },
            "100": {
                "value": "#FBDAE1",
                "type": "color"
            },
            "200": {
                "value": "#F5B7C3",
                "type": "color"
            },
            "300": {
                "value": "#E9869A",
                "type": "color"
            },
            "400": {
                "value": "#D95973",
                "type": "color"
            },
            "500": {
                "value": "#BE3752",
                "type": "color"
            },
            "600": {
                "value": "#913144",
                "type": "color"
            },
            "700": {
                "value": "#662835",
                "type": "color"
            },
            "800": {
                "value": "#431E25",
                "type": "color"
            },
            "900": {
                "value": "#291418",
                "type": "color"
            }
        }
    }
}

Palettes built on #170307

Color Lab

Pairs with #170307

UI roles & guardrails

In real applications

Scales

Every model

Export