HEX
#4169E1Primary tokenCSS Named Color Reference
Royal Blue Color Code
Royal Blue·#4169E1
Blue FamilyCoolMid toneHigh saturationoklch(56.0% 0.188 266)
RGB
rgb(65, 105, 225)Screen valuesHSL
hsl(225 73% 57%)Hue and lightnessCMYK
71, 53, 0, 12Print handoffLAB
48, 26, -65Perceptual referenceOKLCH
oklch(56.0% 0.188 266)Modern perceptualRoyal Blue is a published CSS named color that balances authority, clarity, and brightness. Use this page to inspect its exact code values, compare adjacent blues, and move it into conversion, palette, or brand-token workflows.
Best text colorWhite text
Body text contrast4.85:1
Best UseTrustworthy CTAs, navigation, and enterprise product accents
Tonal Scale
100#DDE4FA
300#A8BAF1
500#6384E6
600#4169E1
800#2F4CA2
Contrast Checks
White text on this color
Buttons, badges, and filled actions.
4.85:1Safe for body text
Dark text on this color
Large headings and selective UI.
3.54:1Large text / UI only
This color on light surface
Links, borders, and icons on light UI.
4.60:1Safe for body text
Best text colorWhite textContrast 4.85:1
Professional Reference
OKLCHoklch(56.0% 0.188 266)
Relative Luminance0.1666
Source TypeCSS Named Color
Classification
Blue FamilyCoolMid toneHigh saturation
Source Context
Source Type
CSS Named Color
System
CSS
Closest Matches
Ant Design Geekblue 5Ant Design Blue 7Material Blue A400
Accessibility Matrix
White text on this color
White text placed on the current color.
4.85:1AA
Dark text on this color
Dark text or headings on the current color.
3.54:1Large text / UI only
This color on light surface
Use this color for links, strokes, or icons on light UI.
4.60:1AA
This color on dark surface
Use this color inside dark shells for strokes, tags, or icons.
3.54:1Large text / UI only
Best text colorWhite textContrast 4.85:1 · AA
Where It Works
- Links, CTAs, data highlights, and enterprise accents.
- Brighter than navy, steadier than electric blues.
- Pairs with cool white, slate neutrals, and cyan accents.
Reference Notes
Last Updated
2026-06-25
Source Library
CSS Standard Colors
Methodology
Verified source values + site guidance
Color Notes
Royal Blue is sourced from the published CSS Standard Colors library and retained here as a searchable reference swatch for product and interface reference work.
Hue Family
Trust-building blues for enterprise and SaaS.
Source Collections
CSS Named Colors
Related Colors
Palette Starting Points
Implementation Snippets
:root {
--color-royal-blue: #4169E1;
--color-royal-blue-rgb: 65 105 225;
}class="bg-[#4169E1] text-white"
class="hover:bg-[#2F4CA2] ring-1 ring-[#4169E1]"{
"royalBlue": "#4169E1",
"royalBlueRgb": [65, 105, 225],
"royalBlueHsl": [225, 73, 57]
}