Color #558B88 Color / Colour Code #558B88
This page shows the hex color code for color #558b88 (#558B88). The colour is a cyan tone with 24% saturation and 44% lightness. Explore its conversions, colour palettes, gradients, accessibility data, and CSS code below.
Color Conversions
Accessibility Contrast
WCAG contrast ratios for #558B88 against common backgrounds.
Complementary Colors
#558B88 paired with its color wheel opposite for maximum contrast.
Analogous Colors
Hues at 147, 177, and 207 degrees for harmonious combinations.
Triadic Palette
Three colors at 177, 297, and 57 degrees.
Color Palettes Using #558B88
Five shades at lightness levels 15% through 85% while keeping hue at 177 and saturation at 24%. Use the darkest shade for text and the lightest for backgrounds to build a cohesive single-hue design system.
Adjacent hues from 177 to 222 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 177 with its complement at 357 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 #558B88
Lightness variations at hue 177 and 24% saturation.
CSS Gradients with #558B88
Design Use Cases for #558B88
Muted Accent Color
With 24% saturation, #558B88 has a subtle, sophisticated quality. This level of desaturation works well for secondary buttons, inactive states, subtle borders, and backgrounds that need a hint of color without being distracting. Muted colors communicate restraint and professionalism.
Primary Interface Color
At 44% lightness, #558B88 is in the mid-range, making it ideal for interactive elements like buttons, links, and selected states. This lightness level ensures good contrast against both light and dark adjacent elements in most layouts.
Clarity & Technology
#558B88 is in the cyan spectrum (hue 177). 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 #558B88 (hue 177) to its complement at hue 357. For a subtler effect, try pairing with an analogous color at hue 207. Use CSS: background: linear-gradient(135deg, #558b88, #8b5558);
CSS Code for #558B88
Similar Colors
Colors visually similar to #558B88 based on RGB, lightness, and hue variations.
Use This Color in Design Tools
Apply #558B88 across image editing and color design tools.
About Color #558B88 (#558B88)
#558B88 is a cyan color (colour) with RGB channel values of 85 red, 139 green, and 136 blue. The green channel is dominant with a relatively balanced channel distribution. In HSL terms, the hue sits at 177 degrees with 24% saturation and 44% lightness, placing it in the neutral-to-cool range of the colour spectrum.
The perceived brightness of #558B88 is 123/255 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 39% cyan, 0% magenta, 2% yellow, and 45% key (black).
The WCAG contrast ratio of #558B88 against white is 3.86:1 and against black is 5.43:1. This only passes AA for large text (18pt+) on white. For normal body text on white, darken the color or use it on a dark background where it achieves 5.43:1.
The complementary colour #8B5558 creates maximum visual tension when paired with #558B88. For more harmonious color combinations, use the analogous colours #558B6E and #55738B, 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 #558B88
- 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 #558B88?
- #558B88 is Color #558B88, a cyan color (colour) with RGB(85, 139, 136), HSL(177, 24%, 44%), and CMYK(39%, 0%, 2%, 45%). Its perceived brightness is 123/255.
- Is #558B88 accessible for text?
- Against white, #558B88 has a contrast ratio of 3.86:1 (fails AA for normal text). Against black, it has 5.43:1 (passes AA). It passes AA for large text (18pt+) on white. Use the contrast checker tool for custom background pairings.
- What colours pair well with #558B88?
- The complementary colour is #8B5558 (hue 357). For subtle color combinations, use analogous colours #558B6E and #55738B. The triadic palette adds #88558B and #8B8855 for vibrant variety.
- How do I use #558B88 in CSS?
- Use any format: color: #558b88; or rgb(85, 139, 136); or hsl(177, 24%, 44%). For CSS custom properties: --color-primary: 177 24% 44%; 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.