#18066B Color
#18066B is rgb(24, 6, 107) in RGB, hsl(251, 89%, 22%) in HSL, and about cmyk(78%, 94%, 0%, 58%) in CMYK. It has no registered color name of its own — the closest is Persian Indigo (#32127A), clearly related but distinguishable side by side at ΔE 6.73. White text is the more readable choice on this background.
#18066Brgb(24, 6, 107)hsl(251, 89%, 22%)hsv(251, 94%, 42%)cmyk(78%, 94%, 0%, 58%)oklch(25.8% 0.154 275.2)lab(10.74% 34.13 -54.59)lch(10.74% 64.38 302.01)What #18066B 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 #18066B, 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.
#18066B Channel Values
How #18066B 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 24 · G 6 · B 107 | 8-bit channels as sent to the display |
| HSL | H 251° · S 89% · L 22% | Easiest model for building lighter and darker variants |
| HSV | H 251° · S 94% · V 42% | Matches the picker in most design tools |
| CMYK | C 78% · M 94% · Y 0% · K 58% | Approximate ink mix; confirm with an ICC profile before printing |
| Luminance | 16.44:1 vs white · 1.28:1 vs black | WCAG 2.2 relative-luminance contrast ratios |
Text Contrast & Accessibility
WCAG 2.2 contrast ratios for text on a #18066B 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 #18066B in the contrast checker.
Colors That Go With #18066B
Pairings derived from color-wheel relationships. The complementary color sits opposite #18066B; 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 #18066B
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 #18066B.
How #18066B 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.
#18066B#0A0A6B#11086B#0E0E6B#120B6B#002727#001E4B#1F1F1FUsing #18066B in Code
Copy-ready declarations for the places this color usually ends up.
--color-18066b: #18066B;background-color: #18066B;colors: { 'color-18066b': '#18066B' }Color(red: 0.094, green: 0.024, blue: 0.420)<color name="color_18066b">#18066B</color>fill="#18066B"More Blue Colors
#18066B sits in the blue family. These are its neighbours across that family's full range, each with its own breakdown.
#18066B Frequently Asked Questions
What color is #18066B?
#18066B is a dark blue — rgb(24, 6, 107) in RGB and hsl(251, 89%, 22%) in HSL. It carries no registered color name of its own; the closest named color is Persian Indigo (#32127A), which is clearly related but distinguishable side by side at a CIE76 distance of 6.73.
What is the RGB value of #18066B?
#18066B is rgb(24, 6, 107) — red 24, green 6, and blue 107 on the 0-255 scale.
What is the CMYK value of #18066B?
#18066B converts to approximately cmyk(78%, 94%, 0%, 58%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.
Should text on #18066B be black or white?
White text is the more readable choice. #18066B scores 16.44:1 against white and 1.28:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.
Can I write #18066B as a CSS color keyword?
No. #18066B 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 midnightblue (#191970) at a CIE76 distance of 9.9, which is clearly related but distinguishable side by side.
Open #18066B in a Tool
Keep exploring: every blue in the color library, the guide to shades of blue, or the full color library.