Steelblue
steelblue · #4682B4
HEX
#4682B4
RGB
rgb(70, 130, 180)
CMYK
cmyk(61%, 28%, 0%, 29%)
HSL
hsl(207, 44%, 49%)
LAB
lab(52.5, -4.1, -32.2)
What is Steelblue?
Steelblue is the steelblue reference in the CSS Named Colors. Its sRGB value is #4682B4 (rgb 70, 130, 180). It sits in the blue family. The 147 named colors defined by the W3C CSS Color Module Level 4 specification — usable directly in CSS as keywords like 'crimson' or 'rebeccapurple'. See disclaimer for accuracy and trademark notes.
Accessibility
WCAG 2.1 contrast checks for Steelblue as a background.
Black text on this color
White text on this color
Shades, tints & tonal scale of Steelblue
An 11-step tonal scale derived from Steelblue (#4682B4). 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
#F0F5F9
#F0F5F9
100
#E1EBF3
#E1EBF3
200
#C4D7E7
#C4D7E7
300
#A3C1DA
#A3C1DA
400
#74A1C7
#74A1C7
500
#4682B4
#4682B4
600
#3C6F99
#3C6F99
700
#2E5575
#2E5575
800
#203B51
#203B51
900
#12212D
#12212D
950
#081016
#081016
Lighter tints (mixed with white)
15%
#7C9EC2
30%
#9EB4CE
45%
#B9C7DA
60%
#CFD8E5
75%
#E3E8EF
Darker shades (mixed with black)
15%
#4079A7
30%
#3A6E99
45%
#336289
60%
#2B5476
75%
#21435F
Color harmonies for Steelblue
Classic color-theory harmonies derived from rotating the hue of Steelblue. Use these to build accent palettes, brand systems, and accessible UI color pairings.
Complementary
180° opposite — strongest contrast
#4682B4
#4682B4
#B47746
#B47746
Triadic
Three colors 120° apart
#4682B4
#4682B4
#B44682
#B44682
#82B446
#82B446
Analogous
Two neighbors ±30° on the wheel
#46B4AE
#46B4AE
#4682B4
#4682B4
#464BB4
#464BB4
Split-complementary
Base + two colors flanking its complement
#4682B4
#4682B4
#B4464B
#B4464B
#B4AE46
#B4AE46
Tetradic
Two complementary pairs
#4682B4
#4682B4
#7746B4
#7746B4
#B47746
#B47746
#82B446
#82B446
Square
Four colors evenly spaced 90° apart
#4682B4
#4682B4
#AE46B4
#AE46B4
#B47746
#B47746
#4BB446
#4BB446
Steelblue in every color space
Full conversion of Steelblue 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
#4682B4
RGB
rgb(70, 130, 180)
CMYK
cmyk(61%, 28%, 0%, 29%)
HSL
hsl(207, 44%, 49%)
HSV
hsv(207, 61%, 71%)
HWB
hwb(207 27% 29%)
CIE Lab
lab(52.5 -4.1 -32.2)
OKLCH
oklch(58.8% 0.099 245.7)
XYZ (D65)
xyz(18.74, 20.56, 46.15)
Copy-ready code for Steelblue
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: #4682B4;
background-color: #4682B4;CSS variable
:root {
--color-steelblue: #4682B4;
}Tailwind config
// tailwind.config.js
colors: {
'steelblue': '#4682B4',
}Sass
$color-steelblue: #4682B4;Swift UIColor
UIColor(red: 0.275, green: 0.510, blue: 0.706, alpha: 1.0)Android XML
<color name="steelblue">#4682B4</color>Closest match in every color system
The nearest Steelblue 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 CSS 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 Steelblue
What is the HEX code for Steelblue?
Steelblue (steelblue) has the HEX code #4682B4. In RGB it is rgb(70, 130, 180), and in CMYK it is cmyk(61%, 28%, 0%, 29%).
What is the OKLCH value of Steelblue?
Steelblue converts to oklch(0.588 0.099 245.7). OKLCH is the perceptually uniform color space used by Tailwind v4 and CSS Color Module Level 4.
Is Steelblue accessible for body text?
Used as a background, Steelblue has a contrast ratio of 5.11:1 with black text and 4.11:1 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 Steelblue?
The closest Pantone reference to Steelblue by ΔE2000 perceptual distance is Pantone Process Blue C (#0085CA). Cross-system Pantone matching is approximate; for color-critical print work, verify with a physical Pantone guide.
What is the closest RAL color to Steelblue?
The closest RAL Classic reference to Steelblue 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 Steelblue?
The complementary color (180° opposite on the HSL color wheel) of Steelblue is #B47746. Use it for high-contrast accents, error states, or call-to-action pairings.
Data provenance & source
CSS Named Colors (CSS Color Module Level 4)
The 147 named colors defined by the W3C CSS Color Module Level 4 specification. Origin: VGA (16) + X11 (rest) + 'rebeccapurple'. Use as a reference for web color names that all browsers natively support. Names like 'crimson' or 'rebeccapurple' work as CSS values without any framework.
- Source type
- derived
- Confidence
- high
- License
- W3C permissive document license
- Last reviewed
- 2026-05-24
Workflow tags
CSS named colors are sRGB digital values defined for browsers. For print, convert to a process-appropriate color and proof against substrate.