Royalblue1
royalblue1 · #4876FF
HEX
#4876FF
RGB
rgb(72, 118, 255)
CMYK
cmyk(72%, 54%, 0%, 0%)
HSL
hsl(225, 100%, 64%)
LAB
lab(53.5, 29.7, -72.7)
What is Royalblue1?
Royalblue1 is the royalblue1 reference in the X11 named colors. Its sRGB value is #4876FF (rgb 72, 118, 255). 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 Royalblue1 as a background.
Black text on this color
White text on this color
Shades, tints & tonal scale of Royalblue1
An 11-step tonal scale derived from Royalblue1 (#4876FF). 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
#F0F4FF
#F0F4FF
100
#E2E9FF
#E2E9FF
200
#C4D3FF
#C4D3FF
300
#A4BBFF
#A4BBFF
400
#7698FF
#7698FF
500
#4876FF
#4876FF
600
#3D64D9
#3D64D9
700
#2F4DA6
#2F4DA6
800
#203573
#203573
900
#121E40
#121E40
950
#090E1F
#090E1F
Lighter tints (mixed with white)
15%
#7D96FF
30%
#9FAFFF
45%
#B9C4FF
60%
#CFD6FF
75%
#E3E7FF
Darker shades (mixed with black)
15%
#426DED
30%
#3C64DA
45%
#3559C4
60%
#2D4CAA
75%
#223C89
Color harmonies for Royalblue1
Classic color-theory harmonies derived from rotating the hue of Royalblue1. Use these to build accent palettes, brand systems, and accessible UI color pairings.
Complementary
180° opposite — strongest contrast
#4876FF
#4876FF
#FFD147
#FFD147
Triadic
Three colors 120° apart
#4876FF
#4876FF
#FF4775
#FF4775
#75FF47
#75FF47
Analogous
Two neighbors ±30° on the wheel
#47D1FF
#47D1FF
#4876FF
#4876FF
#7547FF
#7547FF
Split-complementary
Base + two colors flanking its complement
#4876FF
#4876FF
#FF7547
#FF7547
#D1FF47
#D1FF47
Tetradic
Two complementary pairs
#4876FF
#4876FF
#D147FF
#D147FF
#FFD147
#FFD147
#75FF47
#75FF47
Square
Four colors evenly spaced 90° apart
#4876FF
#4876FF
#FF47D1
#FF47D1
#FFD147
#FFD147
#47FF75
#47FF75
Royalblue1 in every color space
Full conversion of Royalblue1 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
#4876FF
RGB
rgb(72, 118, 255)
CMYK
cmyk(72%, 54%, 0%, 0%)
HSL
hsl(225, 100%, 64%)
HSV
hsv(225, 72%, 100%)
HWB
hwb(225 28% 0%)
CIE Lab
lab(53.5 29.7 -72.7)
OKLCH
oklch(61.0% 0.210 266.2)
XYZ (D65)
xyz(27.19, 21.55, 97.32)
Copy-ready code for Royalblue1
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: #4876FF;
background-color: #4876FF;CSS variable
:root {
--color-royalblue1: #4876FF;
}Tailwind config
// tailwind.config.js
colors: {
'royalblue1': '#4876FF',
}Sass
$color-royalblue1: #4876FF;Swift UIColor
UIColor(red: 0.282, green: 0.463, blue: 1.000, alpha: 1.0)Android XML
<color name="royalblue1">#4876FF</color>Closest match in every color system
The nearest Royalblue1 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 5012
#3B83BD
Light blue
RAL 5015
#2271B3
Sky blue
RAL 5023
#49678D
Distant blue
RAL 5014
#606E8C
Pigeon blue
RAL 5007
#3E5F8A
Brilliant blue
RAL 7000
#7E8B92
Squirrel grey
FAQ about Royalblue1
What is the HEX code for Royalblue1?
Royalblue1 (royalblue1) has the HEX code #4876FF. In RGB it is rgb(72, 118, 255), and in CMYK it is cmyk(72%, 54%, 0%, 0%).
What is the OKLCH value of Royalblue1?
Royalblue1 converts to oklch(0.610 0.210 266.2). OKLCH is the perceptually uniform color space used by Tailwind v4 and CSS Color Module Level 4.
Is Royalblue1 accessible for body text?
Used as a background, Royalblue1 has a contrast ratio of 5.31:1 with black text and 3.95:1 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 Royalblue1?
The closest Pantone reference to Royalblue1 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 Royalblue1?
The closest RAL Classic reference to Royalblue1 by ΔE2000 distance is RAL 5012 (Light blue, #3B83BD). RAL is a German industrial coating standard commonly used for paint, powder coat, and architectural specification.
What is the complementary color of Royalblue1?
The complementary color (180° opposite on the HSL color wheel) of Royalblue1 is #FFD147. 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.