Royal Blue Color — #4169E1 HEX Code
Royal Blue uses #4169E1, or RGB(65, 105, 225), in this color catalog. Explore complementary colors, palettes and text contrast below.
Color Wheel
Colors adjacent on the wheel create a serene, comfortable palette. Ideal for nature-inspired designs and cohesive UI themes. Explore analogous harmonies for Royal Blue.
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Colors adjacent on the wheel create a serene, comfortable palette. Ideal for nature-inspired designs and cohesive UI themes.
Royal Blue
#4169E1
Royal Blue color reference
Updated
Royal blue is a vivid medium CSS blue. Compared with navy, it is lighter and more prominent, so the same text partner may behave differently on each.
CSS keyword: royalblue. Each resolves to #4169E1 in sRGB.
- HEX — exact
- #4169E1
- RGB — exact 8-bit channels
- 65, 105, 225
- HSL — rounded
- 225°, 73%, 57%
What is the complementary color?
An HSL hue rotation of 180° gives #E1B941, keeping the rounded saturation and lightness values. This reference calculation rounds HSL before converting back to RGB. It is a digital harmony starting point, not a pigment-mixing rule or a guarantee of readable text.
Black or white text on Royal Blue?
AA requires at least 4.5:1 for normal text. Results use opaque colors and unrounded contrast values; a passing pair does not establish complete accessibility.
Use #4169E1 in a real interface
Exact match in the Color Match reference list: Royal Blue. Reference names are browsing labels; not every name is a CSS keyword.
This value meets normal-text AA against white. Try it as a text or action-surface candidate and test the states around it.
A passing foreground/background check covers that pair only. Inspect focus, hover and meaningful boundaries against their actual neighbors.
Assign roles and check the pair
The lightest and darkest supplied values are the starting reading pair. The accent label adds black or white, whichever has greater contrast. You can change the accent below.
A palette in context
Use this preview to inspect reading text and an accent label.
Example actionReading text #4169E1 on #FFFFFF: 4.847:1 - Pass normal text AA.
Accent label #FFFFFF on #4169E1: 4.847:1.
Checks use unrounded ratios and opaque sRGB. The example action is a visual sample. Test boundaries, focus and hover in your actual component.
All color pairs: normal text AA
| Text / background | #4169E1 | #FFFFFF |
|---|---|---|
| #4169E1 | 1.00:1 Fail | 4.85:1 Pass |
| #FFFFFF | 4.85:1 Pass | 1.00:1 Fail |
:root {
--surface: #FFFFFF;
--text: #4169E1;
--accent: #4169E1;
--on-accent: #FFFFFF;
}Shades & Tints
Tints (Adding White)
Shades (Adding Black)
Theme Palettes
Pastel
Vintage
Neon
Dark Mode
Nature
Live Website Preview
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See your selected colors on headings, surfaces and example actions.
Accessibility
Text contrast on Royal Blue
Each sample uses this color as the background. Results describe opaque text contrast, not the accessibility of a whole design.
White text
A normal-size text example.
#FFFFFF on #4169E1
WCAG: 4.847:1
Normal text: AA. Large text: AAA.
APCA: -78.59 Lc (supplementary).
Inspect this pair and find a fixBlack text
A normal-size text example.
#000000 on #4169E1
WCAG: 4.333:1
Normal text: Fail. Large text: AA.
APCA: 30.92 Lc (supplementary).
Inspect this pair and find a fixAA needs 4.5:1 for normal text and 3:1 for large text. Large text is at least 24 CSS px, or about 18.67 CSS px and bold. Methods and limitations
Vision Simulator
Normal Vision
Vision: Viénot 1999 + Machado 2009. Environment: approximate perceptual simulation.
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