Color Details and Palettes for #1A1A0B

Details about the color Underworld

Closest web-safe match: #333300

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 #1A1A0B
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About Color Hex #1a1a0b

The color Underworld, with hexadecimal code #1a1a0b, resides in the yellow color family, the most visible hue in the spectrum. Yellow radiates optimism, intellect, and cheerful energy—qualities that made it the imperial color of ancient China. Additionally, it evokes emotions such as Power, Elegance, Formality, Mystery and Authority. Yellow represents wealth, glory, and wisdom in various cultures, including being the color of royalty in ancient China. It is also associated with happiness and optimism in many Western cultures. With a moderate saturation of 41%, it has a softened, muted quality that lends sophistication and works well for backgrounds and secondary elements. At only 7% lightness, this extremely dark shade approaches black, delivering maximum drama and contrast when paired with lighter elements. This color is ideal for designs that aim to express Power, Elegance, Formality, Mystery, or Authority. It can be effectively used in web design, branding, and marketing materials to attract attention and convey specific messages.

The RGB values for Underworld are (26, 26, 11), providing a combination of red: 26, green: 26, and blue: 11. In HSL format, it has a hue of 60.00°, saturation of 41.00%, and lightness of 7.00%.

The HSV representation includes a hue of 60.00°, saturation of 58.00%, and value of 10.00%. Its CMYK composition is cyan: 0.00%, magenta: 0.00%, yellow: 58.00%, and black: 90.00%.

The calculated luminance of #1a1a0b is 0.010, offering a brightness level suitable for various design requirements.

This color is not part of the web-safe color palette. The closest web-safe color to this is the color HEX #333300. Its contrast ratio is 1.20:1 against black and 17.55:1 against white. It works well on light backgrounds but may be challenging on darker ones.

In terms of color temperature, #1a1a0b reads as warm. When it comes to accessibility, testing against standard guidelines suggests that using white text meets typical WCAG contrast standards. Additionally, the ideal foreground color for improved legibility on #1a1a0b is white.

Considering its saturation and lightness, #1a1a0b appears more vivid and energetic, making it stand out in designs that aim to capture attention.

History, Usage, Psychology & Design Ideas for #1A1A0B

Underworld (#1A1A0B) belongs to the Yellow color family.

This deep, saturated shade conveys authority and richness. Deep tones are favored in luxury packaging, evening-event branding, and dark-mode interfaces where they provide dramatic contrast against lighter elements.

Historical Background

Yellow ochre was one of the first pigments used in cave art, and later Egyptians produced orpiment—a toxic arsenic-based yellow—for tomb paintings. In imperial China, only the emperor could wear bright yellow, making it the most restricted color in the nation. Van Gogh famously obsessed over chrome yellow, using it lavishly in his Sunflowers series and Arles landscapes.

Design & Usage Tips

Yellow is the most visible color in daylight, which is why it dominates warning signs, taxi cabs, and highlighter pens. Use it for attention-grabbing headlines or promotional banners, but ensure sufficient contrast with text—dark gray or black on yellow maintains readability. Avoid large yellow backgrounds on screens, as they can cause eye fatigue.

Positioned on the warm side of the color wheel (hue 60°), it naturally draws the eye and creates a sense of closeness—making it effective for calls to action, food photography, and hospitality branding. At 41% saturation, the color has a muted, sophisticated quality that pairs well with bolder accents. It works as a background, a border, or a secondary element in layered compositions.

Psychological Impact

Yellow radiates optimism, intellect, and energy. It stimulates mental activity and generates a sense of cheerfulness, which makes it popular in children's products and educational materials. However, overly bright yellows can provoke anxiety, so context and tone matter.

At just 7% lightness, this is an extremely dark shade that approaches black. It is best reserved for text, thin borders, or dramatic full-bleed backgrounds paired with light typography.

Creative Design Ideas

Pair canary yellow with charcoal for a modern, high-contrast editorial style. Use soft butter yellow as a background for recipe blogs or lifestyle content to evoke warmth. In branding, a yellow logomark on a white background signals innovation and forward-thinking (think Snapchat or National Geographic).

#1A1A0B Color Conversions

Every way to write Underworld — copy Underworld as RGB, HSL, HSV, HWB, CMYK, OKLCH, OKLab, CIELAB, LCH, XYZ or a decimal integer. One-tap copy on every format; tap on any card to learn what it is and when to use it.

12 formats
HEX Web
#1A1A0B

Hexadecimal is the web’s universal color notation — two digits each for red, green and blue. Drop it straight into HTML, CSS or any design tool.

RGB Screen
rgb(26, 26, 11)

RGB is the additive Red-Green-Blue model every screen uses to emit light. The default choice for websites, apps and on-screen UI.

HSL Web
hsl(60, 41%, 7%)

HSL breaks a color into Hue, Saturation and Lightness — the most intuitive way to lighten, darken or mute a color in CSS.

HSV HSB Design
hsv(60, 58%, 10%)

HSV (also called HSB) maps Hue, Saturation and Value/Brightness. It is the model behind the color pickers in Photoshop, Figma and most design apps.

HWB CSS 4
hwb(60 4% 90%)

HWB blends a pure hue with Whiteness and Blackness — a painter-friendly model added in CSS Color 4 for quick tints and shades.

CMYK Print
cmyk(0%, 0%, 58%, 90%)

CMYK is the subtractive Cyan-Magenta-Yellow-Black ink model. Use these values when preparing artwork for a printer or commercial press.

OKLCH Modern
oklch(21.31% 0.027 108.48)

OKLCH is a modern, perceptually-uniform space (Lightness, Chroma, Hue). It powers smooth gradients and accessible palettes in today’s CSS.

OKLab Modern
oklab(21.31% -0.009 0.025)

OKLab is the Cartesian form of OKLCH — ideal for blending and interpolating colors without the muddy midpoints older spaces produce.

CIELAB L*a*b* Perceptual
L: 8.85, a: -3.07, b: 8.65

CIELAB is a device-independent, perceptually-uniform space. It is the standard for measuring color difference (ΔE) and matching across devices.

LCH Perceptual
L: 8.85, C: 9.18, H: 109.55

LCH is CIELAB in cylindrical form — Lightness, Chroma and Hue — letting you adjust vividness and hue while staying perceptually even.

XYZ CIE Science
X: 0.86, Y: 0.98, Z: 0.46

CIE XYZ is the 1931 master space that underpins every other model here — the scientific bridge used to convert between color systems.

Decimal int Code
1710603

The 24-bit integer value of the color — handy for databases, APIs, game engines and low-level graphics code.

RGB Color Percentages for #1a1a0b

RGB Color Percentages for Underworld (HEX Code: #1a1a0b) display the relative contribution of Red, Green, and Blue in forming the color. Understanding these percentages provides insight into the color's visual balance and primary components.

This color is primarily dominated by Red, making up 41.27% of the total composition. The complete breakdown of RGB contributions is:

Red:
41.27%
Green:
41.27%
Blue:
17.46%

This analysis highlights the influence of each primary color, offering a deeper understanding of the visual characteristics of Underworld.

CMYK Ink Levels & Print Guide for #1a1a0b

CMYK Ink Levels for Underworld (HEX Code: #1a1a0b) provide a breakdown of the percentages of Cyan, Magenta, Yellow, and Black inks needed for accurate print reproduction. The composition of Underworld prominently features Key, reflecting its dominant color characteristic. This information is invaluable for optimizing ink usage and achieving precise color results in printed materials.

The exact CMYK values are: Cyan: 0%, Magenta: 0%, Yellow: 57.69%, and Black: 89.8%.

Luminance & Contrast for #1A1A0B

Relative luminance gauges how bright Underworld is, while the WCAG contrast ratios show how legible black or white text is on it — and which accessibility levels (AA / AAA) it passes.

Relative luminance 0.010
0 · dark1 · light
Aa
Black text 1.20:1
AA AAA Large
Aa
White text 17.55:1
AA AAA Large

Quick CSS Snippets for #1A1A0B

Copy-and-paste CSS for Underworld — backgrounds, text, borders and a custom property. Each line is ready to drop into your stylesheet.

Background background-color: #1A1A0B;
Text color: #1A1A0B;
Border border: 2px solid #1A1A0B;
RGB background-color: rgb(26, 26, 11);
HSL background-color: hsl(60, 41%, 7%);
Variable --color: #1A1A0B;

#1a1a0b Monochrome Palette

The Monochrome Palette consists of shades created by adjusting the brightness. These include lighter, original, and darker shades of the color. This layout helps to visualize the color's range and its potential use in design.

#e8e8e7
#c6c6c2
#a3a39d
#818179
#5f5f54
#3c3c30
#1a1a0b Original
#161609
#121208
#0e0e06
#0a0a04
#070703
#030301

#1a1a0b Complementary Palette

The Complementary Palette is made up of two colors that sit opposite each other on the color wheel. These colors create high contrast and vibrant designs, making them perfect for attention-grabbing elements and dynamic visuals.

#1a1a0b Original
#0b0b19

#1a1a0b Analogic Palette

The Analogic Palette consists of colors that are next to each other on the color wheel. These colors typically create harmonious and subtle designs, often used to evoke calmness and unity in your visual projects.

#1a1a0b Original
#12190b
#19120b
#0b190b
#190b0b
#0b1912
#190b12

#1a1a0b Triadic Palette

The Triadic Palette is made up of three colors evenly spaced on the color wheel. This combination provides a vibrant and balanced color scheme, often used for dynamic and energetic designs while maintaining harmony.

#1a1a0b Original
#0b1919
#190b19

#1a1a0b Quad Palette

The Quad Palette, also known as tetradic, consists of four colors evenly spaced on the color wheel. This combination offers a diverse and bold color scheme, ideal for creating rich, complex designs with multiple accents while still maintaining balance.

#1a1a0b Original
#0b1912
#0b0b19
#190b12

Color Blindness Simulation for #1a1a0b

Colors are perceived differently by individuals with various forms of color blindness. Use the dropdown below to see how this color may look through the eyes of someone with color vision deficiency. Explore how Underworld (#1a1a0b) might appear to people with different visual experiences, and gain deeper insights into color accessibility for your designs!

Each color box displays a "Friendly" or "Not Friendly" tag in the bottom-right corner. A "Friendly" tag indicates that the color difference is distinguishable to individuals with the specific type of color blindness. Conversely, a "Not Friendly" tag means that the color difference might not be distinguishable, potentially causing accessibility issues in your design.

Normal Vision

Deuteranopia (Green Weakness)

Friendly

Protanopia (Red Weakness)

Friendly

Tritanopia (Blue-Yellow Weakness)

Friendly

Achromatopsia (Total Color Blindness)

Friendly

Color Harmonies for #1a1a0b

Color harmonies refer to the visually pleasing combinations of colors that are derived from specific relationships on the color wheel. These harmonious schemes, such as complementary, triadic, and analogous colors, create a balanced and engaging visual experience in design.

Complementary

Analogous

Triadic

Tetradic (Quad)

#1A1A0B Nearby Colors

A handful of colors just a step away from #1A1A0B — each one nudges the brightness, richness, or shade a little while still feeling like the same color. Use the buttons on any swatch to copy its hex or open its full color page.

#222211 Underworld
#111100 Blackn’t
#333322 Graphite
#000000 Black
#222200 Midnight Pines
#111111 Dreamless Sleep
#112211 Nightmare
#221111 Italian Roast

Colors Similar to #1a1a0b

These colors are close neighbours of #1A1A0B in the RGB color space. Each subtle variation can produce a noticeably different mood in your design while remaining harmonious with the original Yellow tone.

#1b1a0b Noir Mystique
#1a1b0b Underworld
#1a1a0c Underworld
#191a0b Underworld
#1a190b Noir Mystique
#1a1a0a Underworld
#2b1a0b Burnt Coffee
#1a2b0b Lindworm Green
#1a1a1c Piano Black
#091a0b Nightmare
#1a090b Italian Roast
#1a1a00 Midnight Pines

Looking for more Yellow shades? Browse Yellow colors →

Explore Vibrant Images Featuring Underworld (#1a1a0b)

Discover a vibrant gallery of images that not only showcase the captivating hue of Underworld, but also embody its unique mood and personality. Each carefully curated photo is selected to highlight the richness and diversity of this color, offering inspiration for design, art, and creative projects.