Color #0B2223 Color / Colour Code #0B2223
This page shows the hex color code for color #0b2223 (#0B2223). The colour is a cyan tone with 52% saturation and 9% lightness. Explore its conversions, colour palettes, gradients, accessibility data, and CSS code below.
Color Conversions
Accessibility Contrast
WCAG contrast ratios for #0B2223 against common backgrounds.
Complementary Colors
#0B2223 paired with its color wheel opposite for maximum contrast.
Analogous Colors
Hues at 153, 183, and 213 degrees for harmonious combinations.
Triadic Palette
Three colors at 183, 303, and 63 degrees.
Color Palettes Using #0B2223
Five shades at lightness levels 15% through 85% while keeping hue at 183 and saturation at 52%. Use the darkest shade for text and the lightest for backgrounds to build a cohesive single-hue design system.
Adjacent hues from 183 to 228 degrees create a warm, unified palette. This analogous scheme works for marketing materials, seasonal campaigns, and any design that needs visual warmth without clashing colors.
Combines the base color at hue 183 with its complement at 3 and two adjacent cool tones. This split-complementary approach provides strong visual contrast while remaining more balanced than a pure complementary scheme.
Five evenly spaced hues at 40% saturation and 80% lightness. Pastels are gentle on the eyes and work well for dashboards, onboarding screens, category tags, and any interface where multiple distinct colors are needed without visual aggression.
Shades & Tints of #0B2223
Lightness variations at hue 183 and 52% saturation.
CSS Gradients with #0B2223
Design Use Cases for #0B2223
Balanced UI Color
At 52% saturation, #0B2223 strikes a balance between vibrancy and restraint. This makes it versatile for primary UI elements like navigation bars, card headers, and form accents. It draws attention without overwhelming adjacent content.
Dark Mode Background
At just 9% lightness, #0B2223 works as a dark mode background or overlay color. Dark backgrounds reduce eye strain in low-light environments and make bright accent colors pop. Pair with light text (minimum 4.5:1 contrast ratio) for readability.
Clarity & Technology
#0B2223 is in the cyan spectrum (hue 183). Cyan evokes technology, clarity, and innovation. It works well for tech product interfaces, data visualization accents, loading indicators, and futuristic design themes. Cyan provides a modern alternative to traditional blues.
Gradient Pairing
Create a gradient from #0B2223 (hue 183) to its complement at hue 3. For a subtler effect, try pairing with an analogous color at hue 213. Use CSS: background: linear-gradient(135deg, #0b2223, #230c0b);
CSS Code for #0B2223
Similar Colors
Colors visually similar to #0B2223 based on RGB, lightness, and hue variations.
Use This Color in Design Tools
Apply #0B2223 across image editing and color design tools.
About Color #0B2223 (#0B2223)
#0B2223 is a cyan color (colour) with RGB channel values of 11 red, 34 green, and 35 blue. The blue channel is dominant by a ratio of 3.2:1 over the weakest channel. In HSL terms, the hue sits at 183 degrees with 52% saturation and 9% lightness, placing it in the cool range of the colour spectrum.
The perceived brightness of #0B2223 is 27/255 using the ITU-R BT.601 luma formula (0.299R + 0.587G + 0.114B). This appears dark to the human eye, so pair it with light text for adequate readability. For print production, the CMYK equivalent is 69% cyan, 3% magenta, 0% yellow, and 86% key (black).
The WCAG contrast ratio of #0B2223 against white is 16.57:1 and against black is 1.27:1. This exceeds the AAA requirement (7:1) for normal text on white, making it excellent for body text and small UI labels on light backgrounds.
The complementary colour #230C0B creates maximum visual tension when paired with #0B2223. For more harmonious color combinations, use the analogous colours #0B2318 and #0B1623, which sit 30 degrees on either side of the hue wheel. To build a complete design system, start with the monochromatic scale above for consistent shade variations, then add one complementary or triadic accent for interactive elements.
How to Explore Color #0B2223
- Enter your color value in HEX format.
- The tool converts it to RGB, HSL, CMYK format in real time.
- Copy the converted value to your clipboard.
What is HEX to RGB, HSL, CMYK color conversion
Converting from HEX to RGB, HSL, CMYK translates a color value between two different color models. Different color models are used in web design (HEX, RGB), print (CMYK), and color theory (HSL, HSV).
Related Tools & Colors
Frequently Asked Questions
- What color / colour is #0B2223?
- #0B2223 is Color #0B2223, a cyan color (colour) with RGB(11, 34, 35), HSL(183, 52%, 9%), and CMYK(69%, 3%, 0%, 86%). Its perceived brightness is 27/255.
- Is #0B2223 accessible for text?
- Against white, #0B2223 has a contrast ratio of 16.57:1 (passes AA for normal text). Against black, it has 1.27:1 (fails AA). Use the contrast checker tool for custom background pairings.
- What colours pair well with #0B2223?
- The complementary colour is #230C0B (hue 3). For subtle color combinations, use analogous colours #0B2318 and #0B1623. The triadic palette adds #230B22 and #22230B for vibrant variety.
- How do I use #0B2223 in CSS?
- Use any format: color: #0b2223; or rgb(11, 34, 35); or hsl(183, 52%, 9%). For CSS custom properties: --color-primary: 183 52% 9%; then use it as hsl(var(--color-primary)).
- Is this color / colour explorer free?
- Yes, completely free with no signup required. All colour calculations run in your browser. You can explore any valid hex color code, not just the pre-generated palette.