Royalblue2
royalblue2 · #436EEE
HEX
#436EEE
RGB
rgb(67, 110, 238)
CMYK
cmyk(72%, 54%, 0%, 7%)
HSL
hsl(225, 83%, 60%)
LAB
lab(50.1, 28.0, -68.9)
What is Royalblue2?
Royalblue2 is the royalblue2 reference in the X11 named colors. Its sRGB value is #436EEE (rgb 67, 110, 238). It sits in the blue family. Historical X Window System color names — the numbered 1-4 lightness variants of the classic xorg-server rgb.txt palette. See disclaimer for accuracy and trademark notes.
Accessibility
WCAG 2.1 contrast checks for Royalblue2 as a background.
Black text on this color
White text on this color
Shades, tints & tonal scale of Royalblue2
An 11-step tonal scale derived from Royalblue2 (#436EEE). Click any swatch to copy its HEX. Use these as a starting point for design tokens, hover states, and disabled states in a design system.
50
#F0F3FE
#F0F3FE
100
#E1E8FC
#E1E8FC
200
#C3D1FA
#C3D1FA
300
#A1B7F7
#A1B7F7
400
#7292F2
#7292F2
500
#436EEE
#436EEE
600
#395ECA
#395ECA
700
#2C489B
#2C489B
800
#1E326B
#1E326B
900
#111C3C
#111C3C
950
#080D1D
#080D1D
Lighter tints (mixed with white)
15%
#7B91F1
30%
#9DABF3
45%
#B8C1F6
60%
#CFD5F8
75%
#E2E6FB
Darker shades (mixed with black)
15%
#3E66DD
30%
#385DCB
45%
#3153B6
60%
#29479E
75%
#1F387F
Color harmonies for Royalblue2
Classic color-theory harmonies derived from rotating the hue of Royalblue2. Use these to build accent palettes, brand systems, and accessible UI color pairings.
Complementary
180° opposite — strongest contrast
#436EEE
#436EEE
#EEC344
#EEC344
Triadic
Three colors 120° apart
#436EEE
#436EEE
#EE446F
#EE446F
#6FEE44
#6FEE44
Analogous
Two neighbors ±30° on the wheel
#44C3EE
#44C3EE
#436EEE
#436EEE
#6F44EE
#6F44EE
Split-complementary
Base + two colors flanking its complement
#436EEE
#436EEE
#EE6F44
#EE6F44
#C3EE44
#C3EE44
Tetradic
Two complementary pairs
#436EEE
#436EEE
#C344EE
#C344EE
#EEC344
#EEC344
#6FEE44
#6FEE44
Square
Four colors evenly spaced 90° apart
#436EEE
#436EEE
#EE44C3
#EE44C3
#EEC344
#EEC344
#44EE6F
#44EE6F
Royalblue2 in every color space
Full conversion of Royalblue2 across the color spaces designers and developers actually use — including OKLCH (the perceptually-uniform space that powers Tailwind v4 and CSS Color Module Level 4) and HWB.
HEX
#436EEE
RGB
rgb(67, 110, 238)
CMYK
cmyk(72%, 54%, 0%, 7%)
HSL
hsl(225, 83%, 60%)
HSV
hsv(225, 72%, 93%)
HWB
hwb(225 26% 7%)
CIE Lab
lab(50.1 28.0 -68.9)
OKLCH
oklch(58.0% 0.199 266.2)
XYZ (D65)
xyz(23.32, 18.52, 83.22)
Copy-ready code for Royalblue2
Drop-in snippets for CSS, Tailwind, Sass, iOS Swift, and Android XML. Click the copy button on any snippet to put it on your clipboard.
CSS
color: #436EEE;
background-color: #436EEE;CSS variable
:root {
--color-royalblue2: #436EEE;
}Tailwind config
// tailwind.config.js
colors: {
'royalblue2': '#436EEE',
}Sass
$color-royalblue2: #436EEE;Swift UIColor
UIColor(red: 0.263, green: 0.431, blue: 0.933, alpha: 1.0)Android XML
<color name="royalblue2">#436EEE</color>Closest match in every color system
The nearest Royalblue2 equivalent in every other color system on this site, ranked by ΔE2000 perceptual distance. Useful when translating between design-system, web-standard, and industrial color references.
Closest in X11 named colors
Top 6 ΔE2000-closest entries within the same collection.
Closest Pantone matches
Top 6 ΔE2000-closest Pantone references. Cross-system matching is approximate — see disclaimer.
Closest RAL Classic matches
Top 6 ΔE2000-closest RAL Classic references for industrial coating cross-reference.
RAL 5015
#2271B3
Sky blue
RAL 5012
#3B83BD
Light blue
RAL 5023
#49678D
Distant blue
RAL 5007
#3E5F8A
Brilliant blue
RAL 5014
#606E8C
Pigeon blue
RAL 5019
#1B5583
Capri blue
FAQ about Royalblue2
What is the HEX code for Royalblue2?
Royalblue2 (royalblue2) has the HEX code #436EEE. In RGB it is rgb(67, 110, 238), and in CMYK it is cmyk(72%, 54%, 0%, 7%).
What is the OKLCH value of Royalblue2?
Royalblue2 converts to oklch(0.580 0.199 266.2). OKLCH is the perceptually uniform color space used by Tailwind v4 and CSS Color Module Level 4.
Is Royalblue2 accessible for body text?
Used as a background, Royalblue2 has a contrast ratio of 4.70:1 with black text and 4.46:1 with white text. WCAG 2.1 AA requires 4.5:1 for normal text. The current recommendation is to use black text and verify in real UI context.
What is the closest Pantone to Royalblue2?
The closest Pantone reference to Royalblue2 by ΔE2000 perceptual distance is Pantone 285 C (#0072CE). Cross-system Pantone matching is approximate; for color-critical print work, verify with a physical Pantone guide.
What is the closest RAL color to Royalblue2?
The closest RAL Classic reference to Royalblue2 by ΔE2000 distance is RAL 5015 (Sky blue, #2271B3). RAL is a German industrial coating standard commonly used for paint, powder coat, and architectural specification.
What is the complementary color of Royalblue2?
The complementary color (180° opposite on the HSL color wheel) of Royalblue2 is #EEC344. Use it for high-contrast accents, error states, or call-to-action pairings.
Data provenance & source
X11 named colors (xorg rgb.txt)
The historical X11 color name list shipped in the xorg-server rgb.txt file. Roughly 550 entries covering classic computing color names like 'PapayaWhip', 'MediumAquamarine', and 'DarkSlateGray'. Many CSS named colors originate here. Use as a reference for legacy and creative color names. Most modern CSS implementations accept these names directly.
- Source type
- derived
- Confidence
- high
- License
- MIT/X11 license (X Consortium)
- Last reviewed
- 2026-05-24
Workflow tags
X11 colors are sRGB digital values from a 1980s color system. For print, convert to a process-appropriate color and proof against substrate.