Lightskyblue4
lightskyblue4 · #607B8B
HEX
#607B8B
RGB
rgb(96, 123, 139)
CMYK
cmyk(31%, 12%, 0%, 45%)
HSL
hsl(202, 18%, 46%)
LAB
lab(50.1, -5.7, -11.8)
What is Lightskyblue4?
Lightskyblue4 is the lightskyblue4 reference in the X11 named colors. Its sRGB value is #607B8B (rgb 96, 123, 139). 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 Lightskyblue4 as a background.
Black text on this color
White text on this color
Shades, tints & tonal scale of Lightskyblue4
An 11-step tonal scale derived from Lightskyblue4 (#607B8B). 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
#F2F4F6
#F2F4F6
100
#E6EAEC
#E6EAEC
200
#CCD5DA
#CCD5DA
300
#B0BDC5
#B0BDC5
400
#889CA8
#889CA8
500
#607B8B
#607B8B
600
#526976
#526976
700
#3E505A
#3E505A
800
#2B373F
#2B373F
900
#181F23
#181F23
950
#0C0F11
#0C0F11
Lighter tints (mixed with white)
15%
#8999A4
30%
#A6B1B8
45%
#BEC5CA
60%
#D2D7DA
75%
#E4E7E9
Darker shades (mixed with black)
15%
#597281
30%
#516876
45%
#485D69
60%
#3D505A
75%
#303F48
Color harmonies for Lightskyblue4
Classic color-theory harmonies derived from rotating the hue of Lightskyblue4. Use these to build accent palettes, brand systems, and accessible UI color pairings.
Complementary
180° opposite — strongest contrast
#607B8B
#607B8B
#8A7060
#8A7060
Triadic
Three colors 120° apart
#607B8B
#607B8B
#8A607B
#8A607B
#7B8A60
#7B8A60
Analogous
Two neighbors ±30° on the wheel
#608A85
#608A85
#607B8B
#607B8B
#60668A
#60668A
Split-complementary
Base + two colors flanking its complement
#607B8B
#607B8B
#8A6066
#8A6066
#8A8560
#8A8560
Tetradic
Two complementary pairs
#607B8B
#607B8B
#70608A
#70608A
#8A7060
#8A7060
#7B8A60
#7B8A60
Square
Four colors evenly spaced 90° apart
#607B8B
#607B8B
#85608A
#85608A
#8A7060
#8A7060
#668A60
#668A60
Lightskyblue4 in every color space
Full conversion of Lightskyblue4 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
#607B8B
RGB
rgb(96, 123, 139)
CMYK
cmyk(31%, 12%, 0%, 45%)
HSL
hsl(202, 18%, 46%)
HSV
hsv(202, 31%, 55%)
HWB
hwb(202 38% 45%)
CIE Lab
lab(50.1 -5.7 -11.8)
OKLCH
oklch(56.8% 0.040 234.4)
XYZ (D65)
xyz(16.57, 18.52, 27.12)
Copy-ready code for Lightskyblue4
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: #607B8B;
background-color: #607B8B;CSS variable
:root {
--color-lightskyblue4: #607B8B;
}Tailwind config
// tailwind.config.js
colors: {
'lightskyblue4': '#607B8B',
}Sass
$color-lightskyblue4: #607B8B;Swift UIColor
UIColor(red: 0.376, green: 0.482, blue: 0.545, alpha: 1.0)Android XML
<color name="lightskyblue4">#607B8B</color>Closest match in every color system
The nearest Lightskyblue4 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 7000
#7E8B92
Squirrel grey
RAL 5014
#606E8C
Pigeon blue
RAL 7005
#6B716F
Mouse grey
RAL 9023
#787878
Pearl dark grey
RAL 5012
#3B83BD
Light blue
RAL 5023
#49678D
Distant blue
FAQ about Lightskyblue4
What is the HEX code for Lightskyblue4?
Lightskyblue4 (lightskyblue4) has the HEX code #607B8B. In RGB it is rgb(96, 123, 139), and in CMYK it is cmyk(31%, 12%, 0%, 45%).
What is the OKLCH value of Lightskyblue4?
Lightskyblue4 converts to oklch(0.568 0.040 234.4). OKLCH is the perceptually uniform color space used by Tailwind v4 and CSS Color Module Level 4.
Is Lightskyblue4 accessible for body text?
Used as a background, Lightskyblue4 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 Lightskyblue4?
The closest Pantone reference to Lightskyblue4 by ΔE2000 perceptual distance is Pantone Cool Gray 9 C (#75787B). Cross-system Pantone matching is approximate; for color-critical print work, verify with a physical Pantone guide.
What is the closest RAL color to Lightskyblue4?
The closest RAL Classic reference to Lightskyblue4 by ΔE2000 distance is RAL 7000 (Squirrel grey, #7E8B92). RAL is a German industrial coating standard commonly used for paint, powder coat, and architectural specification.
What is the complementary color of Lightskyblue4?
The complementary color (180° opposite on the HSL color wheel) of Lightskyblue4 is #8A7060. 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.