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X11 named colors

Lightsteelblue3

lightsteelblue3 · #A2B5CD

HEX

#A2B5CD

RGB

rgb(162, 181, 205)

CMYK

cmyk(21%, 12%, 0%, 20%)

HSL

hsl(213, 30%, 72%)

LAB

lab(73.0, -1.4, -14.3)

What is Lightsteelblue3?

Lightsteelblue3 is the lightsteelblue3 reference in the X11 named colors. Its sRGB value is #A2B5CD (rgb 162, 181, 205). 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 Lightsteelblue3 as a background.

Black text on this color

Sample text · 10.03 : 1
AA Normal
AA Large
AAA Normal
AAA Large

White text on this color

Sample text · 2.09 : 1
AA Normal
AA Large
AAA Normal
AAA Large

Shades, tints & tonal scale of Lightsteelblue3

An 11-step tonal scale derived from Lightsteelblue3 (#A2B5CD). 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 #F8F9FB

50

#F8F9FB

#F8F9FB

Copied #F0F3F7

100

#F0F3F7

#F0F3F7

Copied #E1E7EF

200

#E1E7EF

#E1E7EF

Copied #D1DAE6

300

#D1DAE6

#D1DAE6

Copied #B9C8DA

400

#B9C8DA

#B9C8DA

Copied #A2B5CD

500

#A2B5CD

#A2B5CD

Copied #8A9AAE

600

#8A9AAE

#8A9AAE

Copied #697685

700

#697685

#697685

Copied #49515C

800

#49515C

#49515C

Copied #292D33

900

#292D33

#292D33

Copied #131619

950

#131619

#131619

Lighter tints (mixed with white)

Copied #B4C3D6

15%

#B4C3D6

Copied #C4CFDE

30%

#C4CFDE

Copied #D3DAE5

45%

#D3DAE5

Copied #E0E5ED

60%

#E0E5ED

Copied #ECEFF4

75%

#ECEFF4

Darker shades (mixed with black)

Copied #96A8BF

15%

#96A8BF

Copied #8A9AAF

30%

#8A9AAF

Copied #7B8A9D

45%

#7B8A9D

Copied #6A7787

60%

#6A7787

Copied #555F6D

75%

#555F6D

Color harmonies for Lightsteelblue3

Classic color-theory harmonies derived from rotating the hue of Lightsteelblue3. Use these to build accent palettes, brand systems, and accessible UI color pairings.

Complementary

180° opposite — strongest contrast

Copied #A2B5CD

#A2B5CD

#A2B5CD

Copied #CDBAA2

#CDBAA2

#CDBAA2

Triadic

Three colors 120° apart

Copied #A2B5CD

#A2B5CD

#A2B5CD

Copied #CDA2B5

#CDA2B5

#CDA2B5

Copied #B5CDA2

#B5CDA2

#B5CDA2

Analogous

Two neighbors ±30° on the wheel

Copied #A2CBCD

#A2CBCD

#A2CBCD

Copied #A2B5CD

#A2B5CD

#A2B5CD

Copied #A4A2CD

#A4A2CD

#A4A2CD

Split-complementary

Base + two colors flanking its complement

Copied #A2B5CD

#A2B5CD

#A2B5CD

Copied #CDA4A2

#CDA4A2

#CDA4A2

Copied #CBCDA2

#CBCDA2

#CBCDA2

Tetradic

Two complementary pairs

Copied #A2B5CD

#A2B5CD

#A2B5CD

Copied #BAA2CD

#BAA2CD

#BAA2CD

Copied #CDBAA2

#CDBAA2

#CDBAA2

Copied #B5CDA2

#B5CDA2

#B5CDA2

Square

Four colors evenly spaced 90° apart

Copied #A2B5CD

#A2B5CD

#A2B5CD

Copied #CDA2CB

#CDA2CB

#CDA2CB

Copied #CDBAA2

#CDBAA2

#CDBAA2

Copied #A2CDA4

#A2CDA4

#A2CDA4

Lightsteelblue3 in every color space

Full conversion of Lightsteelblue3 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

#A2B5CD

RGB

rgb(162, 181, 205)

CMYK

cmyk(21%, 12%, 0%, 20%)

HSL

hsl(213, 30%, 72%)

HSV

hsv(213, 21%, 80%)

HWB

hwb(213 64% 20%)

CIE Lab

lab(73.0 -1.4 -14.3)

OKLCH

oklch(76.6% 0.040 254.3)

XYZ (D65)

xyz(42.44, 45.14, 64.22)

Copy-ready code for Lightsteelblue3

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: #A2B5CD;
background-color: #A2B5CD;

CSS variable

:root {
  --color-lightsteelblue3: #A2B5CD;
}

Tailwind config

// tailwind.config.js
colors: {
  'lightsteelblue3': '#A2B5CD',
}

Sass

$color-lightsteelblue3: #A2B5CD;

Swift UIColor

UIColor(red: 0.635, green: 0.710, blue: 0.804, alpha: 1.0)

Android XML

<color name="lightsteelblue3">#A2B5CD</color>

Closest match in every color system

The nearest Lightsteelblue3 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 #9DA1AA

RAL 7040

#9DA1AA

Window grey

Copied #8F999F

RAL 7001

#8F999F

Silver grey

Copied #9EA0A1

RAL 7004

#9EA0A1

Signal grey

Copied #A5A5A5

RAL 9006

#A5A5A5

White aluminium

Copied #D7D7D7

RAL 7035

#D7D7D7

Light grey

Copied #D7D7D7

RAL 9018

#D7D7D7

Papyrus white

FAQ about Lightsteelblue3

What is the HEX code for Lightsteelblue3?

Lightsteelblue3 (lightsteelblue3) has the HEX code #A2B5CD. In RGB it is rgb(162, 181, 205), and in CMYK it is cmyk(21%, 12%, 0%, 20%).

What is the OKLCH value of Lightsteelblue3?

Lightsteelblue3 converts to oklch(0.766 0.040 254.3). OKLCH is the perceptually uniform color space used by Tailwind v4 and CSS Color Module Level 4.

Is Lightsteelblue3 accessible for body text?

Used as a background, Lightsteelblue3 has a contrast ratio of 10.03:1 with black text and 2.09:1 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 Lightsteelblue3?

The closest Pantone reference to Lightsteelblue3 by ΔE2000 perceptual distance is Pantone 291 C (#9BCBEB). Cross-system Pantone matching is approximate; for color-critical print work, verify with a physical Pantone guide.

What is the closest RAL color to Lightsteelblue3?

The closest RAL Classic reference to Lightsteelblue3 by ΔE2000 distance is RAL 7040 (Window grey, #9DA1AA). RAL is a German industrial coating standard commonly used for paint, powder coat, and architectural specification.

What is the complementary color of Lightsteelblue3?

The complementary color (180° opposite on the HSL color wheel) of Lightsteelblue3 is #CDBAA2. 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 · Lightsteelblue3 — #A2B5CD | PantoneTools