HEX
#DC143CPrimary tokenCSS Named Color Reference
Crimson Color Code
Crimson·#DC143C
Red FamilyWarmMid toneHigh saturationoklch(57.1% 0.222 20)
RGB
rgb(220, 20, 60)Screen valuesHSL
hsl(348 83% 47%)Hue and lightnessCMYK
0, 91, 73, 14Print handoffLAB
47, 71, 34Perceptual referenceOKLCH
oklch(57.1% 0.222 20)Modern perceptualCrimson is a mid-tone, high-saturation CSS named color at #DC143C. If you searched for crimson hex code, DC143C, or crimson RGB, this page gives the exact color value, conversion formats, contrast checks, nearby colors, and links into the lookup and converter workflows.
Best text colorWhite text
Body text contrast4.99:1
Best UseAlerts, destructive actions, high-energy CTAs, and urgent interface signals
Tonal Scale
100#F9D5DC
300#EF93A5
500#E23E5F
600#DC143C
800#9E0E2B
Contrast Checks
White text on this color
Buttons, badges, and filled actions.
4.99:1Safe for body text
Dark text on this color
Large headings and selective UI.
3.44:1Large text / UI only
This color on light surface
Links, borders, and icons on light UI.
4.74:1Safe for body text
Best text colorWhite textContrast 4.99:1
Professional Reference
OKLCHoklch(57.1% 0.222 20)
Relative Luminance0.1604
Source TypeCSS Named Color
Classification
Red FamilyWarmMid toneHigh saturation
Source Context
Source Type
CSS Named Color
System
CSS
Closest Matches
Tailwind Rose 600Material Red 700Tailwind Red 500
Color Notes
- Crimson is kept as an exact CSS named color for #DC143C.
- Queries for crimson color code, DC143C, or crimson RGB usually need the value first, then contrast and implementation context.
Accessibility Matrix
White text on this color
White text placed on the current color.
4.99:1AA
Dark text on this color
Dark text or headings on the current color.
3.44:1Large text / UI only
This color on light surface
Use this color for links, strokes, or icons on light UI.
4.74:1AA
This color on dark surface
Use this color inside dark shells for strokes, tags, or icons.
3.44:1Large text / UI only
Best text colorWhite textContrast 4.99:1 · AA
Where It Works
- Use it for alerts, errors, destructive actions, urgent badges, and high-energy accents.
- Keep red focused because broad red surfaces can feel heavy or stressful.
- Pair with white, warm neutrals, deep red shades, and restrained supporting colors.
Reference Notes
Last Updated
2026-09-03
Source Library
CSS Standard Colors
Methodology
Verified source values + site guidance
Color Notes
Crimson is sourced from the published CSS Standard Colors library and retained here as a searchable reference swatch for product and interface reference work.
Hue Family
High-energy warm reds for editorial and alerts.
Source Collections
CSS Named Colors
Related Colors
Palette Starting Points
Implementation Snippets
:root {
--color-crimson: #DC143C;
--color-crimson-rgb: 220 20 60;
}class="bg-[#DC143C] text-white"
class="hover:bg-[#9E0E2B] ring-1 ring-[#DC143C]"{
"crimson": "#DC143C",
"crimsonRgb": [220, 20, 60],
"crimsonHsl": [348, 83, 47]
}