#305288 Color
#305288 is rgb(48, 82, 136) in RGB, hsl(217, 48%, 36%) in HSL, and about cmyk(65%, 40%, 0%, 47%) in CMYK. It has no registered color name of its own — the closest is B'dazzled Blue (#2E5894), very hard to tell apart at ΔE 4.28. White text is the more readable choice on this background.
#305288rgb(48, 82, 136)hsl(217, 48%, 36%)hsv(217, 65%, 53%)cmyk(65%, 40%, 0%, 47%)oklch(44% 0.098 259.3)lab(34.39% 1.41 -34.49)lch(34.39% 34.52 272.34)What #305288 Is Called
Most hex codes have no name: there are 16.7 million of them and a few thousand registered names. These are the named colors nearest to #305288, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.
Browse the full index of named colors A-Z or every blue in the library.
#305288 Channel Values
How #305288 breaks down in each color model. Hue is measured in degrees around the color wheel; saturation, lightness, and the CMYK inks are percentages.
| Model | Channels | Notes |
|---|---|---|
| RGB | R 48 · G 82 · B 136 | 8-bit channels as sent to the display |
| HSL | H 217° · S 48% · L 36% | Easiest model for building lighter and darker variants |
| HSV | H 217° · S 65% · V 53% | Matches the picker in most design tools |
| CMYK | C 65% · M 40% · Y 0% · K 47% | Approximate ink mix; confirm with an ICC profile before printing |
| Luminance | 7.81:1 vs white · 2.69:1 vs black | WCAG 2.2 relative-luminance contrast ratios |
Text Contrast & Accessibility
WCAG 2.2 contrast ratios for text on a #305288 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1. Contrast is one check, not a full accessibility review.
Need a specific ratio against another background? Open #305288 in the contrast checker.
Colors That Go With #305288
Pairings derived from color-wheel relationships. The complementary color sits opposite #305288; analogous colors sit beside it; triadic and split-complementary sets spread evenly around the wheel. Select any swatch for its own breakdown.
Tints & Shades of #305288
Lighter tints and darker shades built by moving the lightness channel while holding hue and saturation, which is what you want for hover states, backgrounds, and text variants.
Want a full 50-950 ramp with semantic roles? Generate design tokens from #305288.
How #305288 Looks with Color Vision Deficiency
Simulated with the Viénot, Brettel & Mollon LMS projection model. Anomalous types are rendered as partial versions of the matching dichromacy, which is an approximation rather than a per-person clinical model.
#305288#4D4D88#434F88#494988#404D88#185B5B#235870#525252Using #305288 in Code
Copy-ready declarations for the places this color usually ends up.
--color-305288: #305288;background-color: #305288;colors: { 'color-305288': '#305288' }Color(red: 0.188, green: 0.322, blue: 0.533)<color name="color_305288">#305288</color>fill="#305288"More Blue Colors
#305288 sits in the blue family. These are its neighbours across that family's full range, each with its own breakdown.
#305288 Frequently Asked Questions
What color is #305288?
#305288 is a dark blue — rgb(48, 82, 136) in RGB and hsl(217, 48%, 36%) in HSL. It carries no registered color name of its own; the closest named color is B'dazzled Blue (#2E5894), which is very hard to tell apart at a CIE76 distance of 4.28.
What is the RGB value of #305288?
#305288 is rgb(48, 82, 136) — red 48, green 82, and blue 136 on the 0-255 scale.
What is the CMYK value of #305288?
#305288 converts to approximately cmyk(65%, 40%, 0%, 47%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.
Should text on #305288 be black or white?
White text is the more readable choice. #305288 scores 7.81:1 against white and 2.69:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.
Can I write #305288 as a CSS color keyword?
No. #305288 is not one of the CSS color keywords, so it has to be written as a hex, rgb() or hsl() value. The closest keyword is steelblue (#4682B4) at a CIE76 distance of 20.19, which is visibly different.
Open #305288 in a Tool
Keep exploring: every blue in the color library, the guide to shades of blue, or the full color library.