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X11 named colors

Lightsteelblue4

lightsteelblue4 · #6E7B8B

HEX

#6E7B8B

RGB

rgb(110, 123, 139)

CMYK

cmyk(21%, 12%, 0%, 45%)

HSL

hsl(213, 12%, 49%)

LAB

lab(51.1, -1.1, -10.3)

What is Lightsteelblue4?

Lightsteelblue4 is the lightsteelblue4 reference in the X11 named colors. Its sRGB value is #6E7B8B (rgb 110, 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 Lightsteelblue4 as a background.

Black text on this color

Sample text · 4.87 : 1
AA Normal
AA Large
AAA Normal
AAA Large

White text on this color

Sample text · 4.31 : 1
AA Normal
AA Large
AAA Normal
AAA Large

Shades, tints & tonal scale of Lightsteelblue4

An 11-step tonal scale derived from Lightsteelblue4 (#6E7B8B). 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.

Copied #F3F4F6

50

#F3F4F6

#F3F4F6

Copied #E8EAEC

100

#E8EAEC

#E8EAEC

Copied #D1D5DA

200

#D1D5DA

#D1D5DA

Copied #B7BDC5

300

#B7BDC5

#B7BDC5

Copied #929CA8

400

#929CA8

#929CA8

Copied #6E7B8B

500

#6E7B8B

#6E7B8B

Copied #5E6976

600

#5E6976

#5E6976

Copied #48505A

700

#48505A

#48505A

Copied #32373F

800

#32373F

#32373F

Copied #1C1F23

900

#1C1F23

#1C1F23

Copied #0D0F11

950

#0D0F11

#0D0F11

Lighter tints (mixed with white)

Copied #9199A4

15%

#9199A4

Copied #ABB1B8

30%

#ABB1B8

Copied #C1C5CA

45%

#C1C5CA

Copied #D5D7DA

60%

#D5D7DA

Copied #E6E7E9

75%

#E6E7E9

Darker shades (mixed with black)

Copied #667281

15%

#667281

Copied #5D6876

30%

#5D6876

Copied #535D69

45%

#535D69

Copied #47505A

60%

#47505A

Copied #383F48

75%

#383F48

Color harmonies for Lightsteelblue4

Classic color-theory harmonies derived from rotating the hue of Lightsteelblue4. Use these to build accent palettes, brand systems, and accessible UI color pairings.

Complementary

180° opposite — strongest contrast

Copied #6E7B8B

#6E7B8B

#6E7B8B

Copied #8C7E6E

#8C7E6E

#8C7E6E

Triadic

Three colors 120° apart

Copied #6E7B8B

#6E7B8B

#6E7B8B

Copied #8C6E7B

#8C6E7B

#8C6E7B

Copied #7B8C6E

#7B8C6E

#7B8C6E

Analogous

Two neighbors ±30° on the wheel

Copied #6E8A8C

#6E8A8C

#6E8A8C

Copied #6E7B8B

#6E7B8B

#6E7B8B

Copied #6F6E8C

#6F6E8C

#6F6E8C

Split-complementary

Base + two colors flanking its complement

Copied #6E7B8B

#6E7B8B

#6E7B8B

Copied #8C6F6E

#8C6F6E

#8C6F6E

Copied #8A8C6E

#8A8C6E

#8A8C6E

Tetradic

Two complementary pairs

Copied #6E7B8B

#6E7B8B

#6E7B8B

Copied #7E6E8C

#7E6E8C

#7E6E8C

Copied #8C7E6E

#8C7E6E

#8C7E6E

Copied #7B8C6E

#7B8C6E

#7B8C6E

Square

Four colors evenly spaced 90° apart

Copied #6E7B8B

#6E7B8B

#6E7B8B

Copied #8C6E8A

#8C6E8A

#8C6E8A

Copied #8C7E6E

#8C7E6E

#8C7E6E

Copied #6E8C6F

#6E8C6F

#6E8C6F

Lightsteelblue4 in every color space

Full conversion of Lightsteelblue4 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

#6E7B8B

RGB

rgb(110, 123, 139)

CMYK

cmyk(21%, 12%, 0%, 45%)

HSL

hsl(213, 12%, 49%)

HSV

hsv(213, 21%, 55%)

HWB

hwb(213 43% 45%)

CIE Lab

lab(51.1 -1.1 -10.3)

OKLCH

oklch(57.8% 0.029 253.7)

XYZ (D65)

xyz(18.17, 19.34, 27.20)

Copy-ready code for Lightsteelblue4

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: #6E7B8B;
background-color: #6E7B8B;

CSS variable

:root {
  --color-lightsteelblue4: #6E7B8B;
}

Tailwind config

// tailwind.config.js
colors: {
  'lightsteelblue4': '#6E7B8B',
}

Sass

$color-lightsteelblue4: #6E7B8B;

Swift UIColor

UIColor(red: 0.431, green: 0.482, blue: 0.545, alpha: 1.0)

Android XML

<color name="lightsteelblue4">#6E7B8B</color>

Closest match in every color system

The nearest Lightsteelblue4 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.

Top 6 ΔE2000-closest Pantone references. Cross-system matching is approximate — see disclaimer.

Top 6 ΔE2000-closest RAL Classic references for industrial coating cross-reference.

Copied #7E8B92

RAL 7000

#7E8B92

Squirrel grey

Copied #606E8C

RAL 5014

#606E8C

Pigeon blue

Copied #787878

RAL 9023

#787878

Pearl dark grey

Copied #7D7F7D

RAL 7037

#7D7F7D

Dusty grey

Copied #6B716F

RAL 7005

#6B716F

Mouse grey

Copied #49678D

RAL 5023

#49678D

Distant blue

FAQ about Lightsteelblue4

What is the HEX code for Lightsteelblue4?

Lightsteelblue4 (lightsteelblue4) has the HEX code #6E7B8B. In RGB it is rgb(110, 123, 139), and in CMYK it is cmyk(21%, 12%, 0%, 45%).

What is the OKLCH value of Lightsteelblue4?

Lightsteelblue4 converts to oklch(0.578 0.029 253.7). OKLCH is the perceptually uniform color space used by Tailwind v4 and CSS Color Module Level 4.

Is Lightsteelblue4 accessible for body text?

Used as a background, Lightsteelblue4 has a contrast ratio of 4.87:1 with black text and 4.31:1 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 Lightsteelblue4?

The closest Pantone reference to Lightsteelblue4 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 Lightsteelblue4?

The closest RAL Classic reference to Lightsteelblue4 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 Lightsteelblue4?

The complementary color (180° opposite on the HSL color wheel) of Lightsteelblue4 is #8C7E6E. 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
named-color
legacy
blue

X11 colors are sRGB digital values from a 1980s color system. For print, convert to a process-appropriate color and proof against substrate.

X11 named colors · Lightsteelblue4 — #6E7B8B | PantoneTools