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red · warm

#c11f13

a dark, electric red · warm · closest name: Firebrick

Token name suggestion: Slate Cherry

RGB
193, 31, 19
HSL
4°, 82%, 42%
CMYK
0, 84, 90, 24
Luminance
0.1236

#c11f13 is a dark electric red, 4° on the wheel and 14/100 on the cool side. Put white text on it (6.05:1). As text it scores 6.05:1 on white — safe at any size. Nearest name is Firebrick, nearest Tailwind family is red.

hsl(4 82% 42%)rgb(193 31 19)Base step 700AA inkWarm

At a glance

Every number on this page in one read: what #c11f13 is made of, how bright it looks, and which way it leans.

Hex
#c11f13
Hue
red
Saturation
82%
electric
Lightness
42%
dark
Brightness
76%
HSV value
Perceived
42%
weighted brightness
Luminance
0.1236
WCAG relative
Temperature
Warm
14/100 cool
Color family
Red
Tone
Electric
Best ink
White
6.05:1
Closest name
Firebrick
ΔE2000 4.7
Chroma
77.7
LCH, 0–130ish
OKLCH L
0.522
perceptual lightness
Tailwind
red
500 · ΔE 14.1
Web-safe
#CC3300
nearest of 216
Where it sits
Hue4° of 360°
Saturation82%
Lightness42%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #c11f13.

Temperature
Warm ← → Cool14% cool

Reads warm. Warm and cool siblings keep the same lightness, so you can swap one in without redoing your contrast maths.

Luminance by channel
Red92%
Green8%
Blue0%

Green carries most of what the eye calls brightness — that is why WCAG weights it 0.7152.

Every format

HEX#c11f13
HEX (8-digit)#c11f13ff
RGBrgb(193, 31, 19)
RGBArgba(193, 31, 19, 1)
HSLhsl(4, 82%, 42%)
HSV / HSBhsv(4, 90%, 76%)
HWBhwb(4 7% 24%)
CMYKcmyk(0%, 84%, 90%, 24%)
LABlab(41.8 60.7 48.6)
LCHlch(41.8 77.7 38.7)
OKLCHoklch(0.522 0.197 29.7)
XYZ (D65)xyz(22.60, 12.37, 1.81)
Decimal12656403
Display P3color(display-p3 0.757 0.122 0.075)
Web-safe#CC3300

Copy-ready code

every platformclick to select
/* CSS */
color: #c11f13;
background-color: #c11f13;
/* CSS custom property */
--brand: #c11f13;
/* Tailwind (arbitrary) */
class="text-[#c11f13] bg-[#c11f13]"
/* SCSS */
$brand: #c11f13;
/* SwiftUI */
Color(red: 0.757, green: 0.122, blue: 0.075)
/* UIKit */
UIColor(red: 0.757, green: 0.122, blue: 0.075, alpha: 1)
/* Android XML */
<color name="brand">#C11F13</color>
/* Android Compose */
Color(0xFFC11F13)
/* Flutter */
Color(0xFFC11F13)
/* Python / OpenCV (BGR) */
(19, 31, 193)
/* Python / PIL (RGB) */
(193, 31, 19)
/* Java AWT */
new Color(193, 31, 19)
/* .NET */
Color.FromArgb(255, 193, 31, 19)
/* OpenGL / Unity (0–1) */
(0.7569f, 0.1216f, 0.0745f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{193,31,19}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #c11f13 85%, white);
border-color: color-mix(in oklab, #c11f13 40%, transparent);
/* theme-aware in one line */
color: light-dark(#74130B, #EED5D3);
/* relative colour syntax */
--hover: hsl(from #c11f13 h s calc(l - 7));

Design tokens

The same ramp in the four formats a team actually needs. Paste one and the whole palette lands with it.

css custom propertiesclick to select
:root {
  --brand-50: #FCF3F2;
  --brand-100: #FAE7E6;
  --brand-200: #F6C9C6;
  --brand-300: #F59F99;
  --brand-400: #F06F66;
  --brand-500: #EB3F33;
  --brand-600: #DF2416;
  --brand-700: #c11f13;
  --brand-800: #95180F;
  --brand-900: #6B150F;
  --brand-950: #430D09;
  --brand: #c11f13;
  --brand-ink: #ffffff;
  --brand-surface: #FAF5F4;
  --brand-border: #EDC3C0;
  --brand-hover: #A11A10;
  --brand-pressed: #80140D;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #241514;
    --brand-ink: #EED5D3;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#FCF3F2',
        100: '#FAE7E6',
        200: '#F6C9C6',
        300: '#F59F99',
        400: '#F06F66',
        500: '#EB3F33',
        600: '#DF2416',
        700: '#c11f13',
        800: '#95180F',
        900: '#6B150F',
        950: '#430D09',
        DEFAULT: '#c11f13',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #FCF3F2,
  '100': #FAE7E6,
  '200': #F6C9C6,
  '300': #F59F99,
  '400': #F06F66,
  '500': #EB3F33,
  '600': #DF2416,
  '700': #c11f13,
  '800': #95180F,
  '900': #6B150F,
  '950': #430D09,
);
$brand-base: #c11f13;
$brand-ink: #ffffff;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#FCF3F2", "$type": "color" },
      "100": { "$value": "#FAE7E6", "$type": "color" },
      "200": { "$value": "#F6C9C6", "$type": "color" },
      "300": { "$value": "#F59F99", "$type": "color" },
      "400": { "$value": "#F06F66", "$type": "color" },
      "500": { "$value": "#EB3F33", "$type": "color" },
      "600": { "$value": "#DF2416", "$type": "color" },
      "700": { "$value": "#c11f13", "$type": "color" },
      "800": { "$value": "#95180F", "$type": "color" },
      "900": { "$value": "#6B150F", "$type": "color" },
      "950": { "$value": "#430D09", "$type": "color" }
    },
    "brandInk": { "$value": "#ffffff", "$type": "color" }
  }
}

Best text color

Only one of black and white can be right. This is the one, with the number that proves it.

Readable at a glance#ffffff on #c11f13 · 6.05:1
Use #ffffffAA at every size, AAA for large text only.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 6.05:1 · recommended
AA pass · AA large pass · AAA fail
Aa
Black text · 3.47:1
AA fail · AA large pass · AAA fail
Reading the other direction: #c11f13 as text scores 6.05:1 on white and 3.47:1 on black.
Best tinted ink on it, if plain black or white feels flat: #FDE9E8 at 5.18:1.

Make it accessible

A contrast checker tells you that you failed. This tells you what to ship instead — same hue, same saturation, lightness moved only as far as WCAG demands.

The quick fox
#c11f13 · 6.05:1
AA on whitealready passes
#c11f13
The quick fox
#AF1C11 · 7.01:1
AAA on white−4% L
#AF1C11
The quick fox
#E22416 · 4.50:1
AA on black+7% L
#E22416
The quick fox
#F06D64 · 7.08:1
AAA on black+25% L
#F06D64

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #C11F13 is enough for headings on white. Non-text elements such as icons, chart strokes and focus rings also sit at 3:1 under WCAG 2.2 (1.4.11).

Accessibility — WCAG contrast

Aa
#c11f13 on white: 6.05:1
AA ✓ pass · AA-large · AAA
Aa
#c11f13 on black: 3.47:1
AA ✗ fail · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #c11f13 as text on that neutral, and that neutral as text on #c11f13.

NeutralRatioBoth directions
White6.05:1AaAa
Slate 505.78:1AaAa
Slate 1005.52:1AaAa
Slate 2004.91:1AaAa
Slate 3004.07:1AaAa
Slate 4002.36:1AaAa
Slate 5001.27:1AaAa
Slate 6001.25:1AaAa
Slate 7001.71:1AaAa
Slate 8002.42:1AaAa
Slate 9002.95:1AaAa
Black3.47:1AaAa
Colour vision deficiency
true color
protanopia · #574C0D
deuteranopia · #7D6F02
tritanopia · #D5001F

Roughly one man in twelve has some form of colour vision deficiency. If any of the three panels above is hard to tell apart from a neighbouring colour in your palette, add a shape, an icon or a label so the meaning does not rest on hue alone.

Color scale — 50 to 950

A Tailwind-shaped ramp built around this exact hex. #c11f13 is pinned to step 700; the rest hold its hue and let saturation ease off at the extremes so the pale end never turns neon.

#FCF3F2
#FAE7E6
#F6C9C6
#F59F99
#F06F66
#EB3F33
#DF2416
#c11f13
#95180F
#6B150F
#430D09
Base = 700Lightest = 50 · #FCF3F2Darkest = 950 · #430D09Text step on white = 600
Perceptual ramp — OKLCH

The same eleven steps expressed in OKLCH, where equal lightness numbers actually look equally spaced. HSL ramps go muddy in the yellows and washed out in the blues; this one does not. Modern browsers render it natively — the hex ramp above is the fallback.

50100200300400500600700800900950
oklch tokensclick to select
:root {
  --brand-50: oklch(0.97 0.049 29.7);
  --brand-100: oklch(0.94 0.079 29.7);
  --brand-200: oklch(0.88 0.118 29.7);
  --brand-300: oklch(0.80 0.154 29.7);
  --brand-400: oklch(0.72 0.181 29.7);
  --brand-500: oklch(0.64 0.197 29.7);
  --brand-600: oklch(0.56 0.197 29.7);
  --brand-700: oklch(0.48 0.185 29.7);
  --brand-800: oklch(0.40 0.165 29.7);
  --brand-900: oklch(0.32 0.138 29.7);
  --brand-950: oklch(0.24 0.108 29.7);
}

Colors that work with #c11f13

Not a palette — a role sheet. Each swatch answers one question you will hit while building the component.

Text on it#ffffff
White wins here
Surface#FAF5F4
Tinted page background
Border#EDC3C0
Hairlines and dividers
Muted text#9B504B
Captions on the surface
Accent#0EBE9E
Second voice, not a rival
Dark variant#74130B
Hover, pressed, headers
Light variant#FDE9E8
Selected rows, tints
Dark surface#241514
Dark-mode background
Hover#A11A10
One step down in lightness
Pressed#80140D
Two steps down
Disabled#B7918E
Chroma pulled out
Focus ring#DF1809
Offset from the fill so it reads
Light mode
Everything in its place

Surface, border, heading and body all derive from this one hue, so the screen stays coherent without a second palette.

Primary actionSecondaryBadge
Dark mode
Same hue, inverted

Lightness flips, hue holds. The accent stays the anchor in both themes.

Primary actionSecondaryAccent

In real components

The same eight roles, wired into the interface patterns you will actually build with them. Every state below is a computed value, not a mock-up.

Buttons and states
Save changesHoverPressedDisabled
OutlineSubtleLinkFocused
Form field
you@company.com

Focus ring uses the light variant so the field still reads as one shape.

Send me product updates
Notice
Your export is ready

The file stays available for seven days. Download it before it expires.

NewBetaDraft
Data
Storage used68%
Acme LtdActive
NorthwindTrial
GlobexActive

How to use #c11f13

Derived from its contrast, chroma and lightness — not from taste.

Works well for
  • Body text and links on white
  • Primary buttons and calls to action
  • Focus rings, active and selected states
  • Headers, footers and dark-mode surfaces
  • Brand accents, badges and data highlights
Use with care
  • Full-page backgrounds — tiring over long sessions
  • Black text placed on it
  • Status meaning — pair it with an icon or label, never colour alone
  • Pairing with a same-lightness hue — edges vibrate
Minimum size as text on white
Any size
Safe as a fill behind white type
Yes
Safe as a 1px border on white
Yes

Meaning and mood

What a colour in this family tends to signal, and how this particular chroma and lightness change the reading.

urgentappetisingboldphysical

Red arrives before the rest of the page does. It raises attention and appetite, which is why it runs food, sport and clearance pricing.

At this chroma the association is amplified — it will dominate anything placed beside it, so give it space and use it sparingly. The low lightness adds weight and formality.

Worth knowing

It is also the universal error colour. Use it as a brand accent and users may read a warning that is not there.

Reads as
  • FormalityHigh
  • EnergyHigh
  • Weight58/100
  • TemperatureWarm
  • ApproachabilityHigh

Colour associations are cultural and vary by market. Treat these as a starting point for a conversation with your audience, not a finding about them.

Similar colors

One move away from this hex in each direction. Every swatch is its own page.

Color relationships

The wheel positions with their names attached, so you can grab the one you actually need.

Complementary#13B5C1
Analogous left#C1135E
Analogous right#C17613
Split-complement 1#13C176
Split-complement 2#135EC1
Triadic 1#13C11F
Triadic 2#1F13C1
Tetradic#5EC113
On the wheel
Base+30°−30°+120°+240°+180°4°

#c11f13 sits at 4°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red75.7%
Green12.2%
Blue7.5%
R · 0–255
193
0xc1
G · 0–255
31
0x1f
B · 0–255
19
0x13

CMYK percentages

Cyan0.0%
Magenta83.9%
Yellow90.2%
Key (black)24.3%

Total ink coverage is 198%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#c11f13 text on a black background

contrast 3.47:1

Card sample

#c11f13 text on a white background

contrast 6.05:1

Card sample

#c11f13 on grey

5.52:1

#c11f13 on its own surface

5.60:1

#c11f13 on its dark surface

2.91:1

CSS3 live lab

Text font color

The quick brown fox

color: #c11f13;
Background color
Panel with #c11f13 background
background-color: #c11f13;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #c11f13;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(193, 31, 19, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(193, 31, 19, 0.45);
Border & gradient
Gradient panel
border: 3px solid #c11f13;
background: linear-gradient(135deg, #c11f13, #C19313);
Gradient text

Gradient headline

background: linear-gradient(90deg, #c11f13, #C1BF13);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #c11f13;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #c11f13;
caret-color: #c11f13;
Left rule
Pull quote or callout
border-left: 4px solid #c11f13;
Ring + tint
Selected chip
background: #FDE9E8;
box-shadow: inset 0 0 0 2px #c11f13;
Conic badge
68%
background: conic-gradient(#c11f13 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #c11f13 over white; the bottom row is the same alpha over a checkerboard, so you can see what survives on a photo or a video.

Bottom row of hexes is the flattened result over white — use those when a design tool refuses transparency, or when you need a solid fallback.

alpha in every syntaxclick to select
rgba(193, 31, 19, 0.5)
rgb(193 31 19 / 50%)
#c11f1380
hsl(4 82% 42% / 50%)
color-mix(in srgb, #c11f13 50%, transparent)
Alpha8-digit hexFlat on white
10%#c11f131a#F9E9E7
20%#c11f1333#F3D2D0
40%#c11f1366#E6A5A1
60%#c11f1399#DA7971
80%#c11f13cc#CD4C42

Gradients from #c11f13

Six recipes, each built from this hex and shown with the exact CSS that produced it.

Elevation
Same hue, three lightnesses — safe anywhere
background: linear-gradient(135deg, #EA3528, #c11f13 45%, #74130B);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #c11f13, #A58A10);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #c11f13, #13B5C1);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #ED4F43 0%, #c11f13 45%, #74130B 100%);
Soft wash
Section backgrounds that stay readable
background: linear-gradient(180deg, #FAF5F4, #ffffff);
Mesh
Ambient background, no image weight
background: radial-gradient(60% 60% at 15% 20%, #E91E87 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #DD9816 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #74130B 0%, transparent 65%), #c11f13;

Monochromatic scale

Palettes built from #c11f13

Shades — darker

Tints — lighter

Tones — desaturated

Color harmonies

Nearest named colors

Ranked with CIEDE2000 across all 139 CSS keywords. Under ΔE 2 the eye stops telling them apart; over ΔE 10 they are plainly different colors.

#c11f13 in the real world

Where a color in this family tends to land, and the interface roles it is usually asked to play.

Industries
Food and drinkEntertainmentRetailSport
Common UI roles
ButtonsLinksFocus statesCharts
Print note

Sits outside most CMYK gamuts — expect a duller press result, or specify a spot ink.

On screens

Holds up across typical panel gamma. Still worth checking on an uncalibrated laptop, where mid-tones shift most.

In dark mode

Too dim on dark surfaces at 3.47:1 — lift it to #E22416 for body text, or reserve it for fills.

Explore nearby colors

Small, deliberate steps away from this hex — useful when you are hunting for the version of a colour that finally feels right.

#c11f13, answered

What color is #c11f13?

#c11f13 is a dark electric red, closest to Firebrick (ΔE2000 4.7). It sits at 4° on the hue wheel with 82% saturation and 42% lightness, which reads as warm.

What is the RGB value of #c11f13?

rgb(193, 31, 19) — 193 red, 31 green and 19 blue out of 255, or 75.7% / 12.2% / 7.5% by channel.

What is #c11f13 in HSL and HSV?

hsl(4, 82%, 42%) and hsv(4, 90%, 76%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #c11f13 a light or a dark color?

It is a dark color. Relative luminance is 0.1236 and perceived brightness is 42%, so white text on it reaches 6.05:1.

Should I use black or white text on #c11f13?

White. It scores 6.05:1 against #c11f13, versus 3.47:1 for black — AA at any size.

Is #c11f13 accessible on a white background?

#c11f13 on white scores 6.05:1, which clears AA at every size but not AAA.

What is the complementary color of #c11f13?

#13B5C1 sits directly opposite on the wheel. Softer options are the split-complements #13C176 and #135EC1, which give the same contrast with far less vibration.

What colors go well with #c11f13?

For interface work: #FAF5F4 as the surface, #EDC3C0 for borders, #9B504B for secondary text, #0EBE9E as an accent and #74130B for hover and pressed states. For a palette, the analogous pair #C1135E and #C17613 stays calm, while #13B5C1 is the loudest partner.

What is #c11f13 in CMYK for printing?

cmyk(0%, 84%, 90%, 24%). This is a screen-to-ink approximation — a color this saturated sits outside most CMYK gamuts and will print duller than it looks here.

Is #c11f13 warm or cool?

Warm — it scores 14 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #C14213; nudged cooler, #C31146.

Which Tailwind color is closest to #c11f13?

The red family — its 500 step is #ef4444, ΔE2000 14.1 away. That is a visible difference, so define #c11f13 as a custom token rather than reaching for the built-in.

How do I use #c11f13 in Tailwind CSS?

Inline it as an arbitrary value with bg-[#c11f13] or text-[#c11f13], or register the whole ramp under theme.extend.colors.brand so you get bg-brand-500 and friends. The generated 50–950 scale on this page is ready to paste into your config.

What is #c11f13 with 50% opacity?

rgba(193, 31, 19, 0.5), or #c11f1380 in eight-digit hex. Over white that composites to #E08F89; over black, #61100A.

Is #c11f13 a web-safe color?

No. The nearest web-safe colour is #CC3300, ΔE2000 6.2 away. The palette only matters for legacy displays and some email clients now.

What does the color #c11f13 mean?

As a red, it reads urgent, appetising, bold. Red arrives before the rest of the page does. It raises attention and appetite, which is why it runs food, sport and clearance pricing. At this chroma the effect is amplified — it will dominate whatever sits beside it.

What gradient works with #c11f13?

The safest is same-hue elevation: linear-gradient(135deg, #EA3528, #c11f13 45%, #74130B). For more colour, a short hue run to #A58A10 keeps it rich without turning muddy.

Work with #c11f13 in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #c11f13 at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.