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red · warm

#c30d39

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

Token name suggestion: Shadow Cardinal

RGB
195, 13, 57
HSL
346°, 88%, 41%
CMYK
0, 93, 71, 24
Luminance
0.1219

#c30d39 is a dark electric red, 346° on the wheel and 25/100 on the cool side. Put white text on it (6.11:1). As text it scores 6.11:1 on white — safe at any size. Nearest name is Crimson, nearest Tailwind family is rose.

hsl(346 88% 41%)rgb(195 13 57)Base step 700AA inkWarm

At a glance

Every number on this page in one read: what #c30d39 is made of, how bright it looks, and which way it leans.

Hex
#c30d39
Hue
346°
red
Saturation
88%
electric
Lightness
41%
dark
Brightness
76%
HSV value
Perceived
43%
weighted brightness
Luminance
0.1219
WCAG relative
Temperature
Warm
25/100 cool
Color family
Red
Tone
Electric
Best ink
White
6.11:1
Closest name
Crimson
ΔE2000 5.7
Chroma
71.0
LCH, 0–130ish
OKLCH L
0.521
perceptual lightness
Tailwind
rose
500 · ΔE 14.2
Web-safe
#CC0033
nearest of 216
Where it sits
Hue346° of 360°
Saturation88%
Lightness41%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #c30d39.

Temperature
Warm ← → Cool25% 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
Red95%
Green2%
Blue2%

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

Every format

HEX#c30d39
HEX (8-digit)#c30d39ff
RGBrgb(195, 13, 57)
RGBArgba(195, 13, 57, 1)
HSLhsl(346, 88%, 41%)
HSV / HSBhsv(345, 93%, 76%)
HWBhwb(346 5% 24%)
CMYKcmyk(0%, 93%, 71%, 24%)
LABlab(41.5 65.4 27.6)
LCHlch(41.5 71.0 22.9)
OKLCHoklch(0.521 0.204 18.2)
XYZ (D65)xyz(23.39, 12.19, 4.99)
Decimal12782905
Display P3color(display-p3 0.765 0.051 0.224)
Web-safe#CC0033

Copy-ready code

every platformclick to select
/* CSS */
color: #c30d39;
background-color: #c30d39;
/* CSS custom property */
--brand: #c30d39;
/* Tailwind (arbitrary) */
class="text-[#c30d39] bg-[#c30d39]"
/* SCSS */
$brand: #c30d39;
/* SwiftUI */
Color(red: 0.765, green: 0.051, blue: 0.224)
/* UIKit */
UIColor(red: 0.765, green: 0.051, blue: 0.224, alpha: 1)
/* Android XML */
<color name="brand">#C30D39</color>
/* Android Compose */
Color(0xFFC30D39)
/* Flutter */
Color(0xFFC30D39)
/* Python / OpenCV (BGR) */
(57, 13, 195)
/* Python / PIL (RGB) */
(195, 13, 57)
/* Java AWT */
new Color(195, 13, 57)
/* .NET */
Color.FromArgb(255, 195, 13, 57)
/* OpenGL / Unity (0–1) */
(0.7647f, 0.0510f, 0.2235f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{195,13,57}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #c30d39 85%, white);
border-color: color-mix(in oklab, #c30d39 40%, transparent);
/* theme-aware in one line */
color: light-dark(#780823, #EED3D9);
/* relative colour syntax */
--hover: hsl(from #c30d39 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: #FDF2F5;
  --brand-100: #FAE5EA;
  --brand-200: #F8C4D1;
  --brand-300: #F896AE;
  --brand-400: #F46185;
  --brand-500: #F12D5C;
  --brand-600: #E50F43;
  --brand-700: #c30d39;
  --brand-800: #990A2D;
  --brand-900: #6E0C24;
  --brand-950: #450716;
  --brand: #c30d39;
  --brand-ink: #ffffff;
  --brand-surface: #FAF4F6;
  --brand-border: #EDC0CB;
  --brand-hover: #A20B2F;
  --brand-pressed: #800925;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #241418;
    --brand-ink: #EED3D9;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#FDF2F5',
        100: '#FAE5EA',
        200: '#F8C4D1',
        300: '#F896AE',
        400: '#F46185',
        500: '#F12D5C',
        600: '#E50F43',
        700: '#c30d39',
        800: '#990A2D',
        900: '#6E0C24',
        950: '#450716',
        DEFAULT: '#c30d39',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #FDF2F5,
  '100': #FAE5EA,
  '200': #F8C4D1,
  '300': #F896AE,
  '400': #F46185,
  '500': #F12D5C,
  '600': #E50F43,
  '700': #c30d39,
  '800': #990A2D,
  '900': #6E0C24,
  '950': #450716,
);
$brand-base: #c30d39;
$brand-ink: #ffffff;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#FDF2F5", "$type": "color" },
      "100": { "$value": "#FAE5EA", "$type": "color" },
      "200": { "$value": "#F8C4D1", "$type": "color" },
      "300": { "$value": "#F896AE", "$type": "color" },
      "400": { "$value": "#F46185", "$type": "color" },
      "500": { "$value": "#F12D5C", "$type": "color" },
      "600": { "$value": "#E50F43", "$type": "color" },
      "700": { "$value": "#c30d39", "$type": "color" },
      "800": { "$value": "#990A2D", "$type": "color" },
      "900": { "$value": "#6E0C24", "$type": "color" },
      "950": { "$value": "#450716", "$type": "color" }
    },
    "brandInk": { "$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 #c30d39 · 6.11:1
Use #ffffffAA at every size, AAA for large text only.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 6.11:1 · recommended
AA pass · AA large pass · AAA fail
Aa
Black text · 3.44:1
AA fail · AA large pass · AAA fail
Reading the other direction: #c30d39 as text scores 6.11:1 on white and 3.44:1 on black.
Best tinted ink on it, if plain black or white feels flat: #FDE7EC 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
#c30d39 · 6.11:1
AA on whitealready passes
#c30d39
The quick fox
#B00C33 · 7.13:1
AAA on white−4% L
#B00C33
The quick fox
#E91044 · 4.62:1
AA on black+8% L
#E91044
The quick fox
#F56588 · 7.10:1
AAA on black+27% L
#F56588

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #C30D39 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
#c30d39 on white: 6.11:1
AA ✓ pass · AA-large · AAA
Aa
#c30d39 on black: 3.44:1
AA ✗ fail · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #c30d39 as text on that neutral, and that neutral as text on #c30d39.

NeutralRatioBoth directions
White6.11:1AaAa
Slate 505.84:1AaAa
Slate 1005.58:1AaAa
Slate 2004.96:1AaAa
Slate 3004.12:1AaAa
Slate 4002.38:1AaAa
Slate 5001.28:1AaAa
Slate 6001.24:1AaAa
Slate 7001.69:1AaAa
Slate 8002.39:1AaAa
Slate 9002.92:1AaAa
Black3.44:1AaAa
Colour vision deficiency
true color
protanopia · #4F4B39
deuteranopia · #7A6F33
tritanopia · #D70024

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. #c30d39 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.

#FDF2F5
#FAE5EA
#F8C4D1
#F896AE
#F46185
#F12D5C
#E50F43
#c30d39
#990A2D
#6E0C24
#450716
Base = 700Lightest = 50 · #FDF2F5Darkest = 950 · #450716Text 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 0.051 18.2);
  --brand-100: oklch(0.94 0.082 18.2);
  --brand-200: oklch(0.88 0.122 18.2);
  --brand-300: oklch(0.80 0.159 18.2);
  --brand-400: oklch(0.72 0.187 18.2);
  --brand-500: oklch(0.64 0.204 18.2);
  --brand-600: oklch(0.56 0.204 18.2);
  --brand-700: oklch(0.48 0.192 18.2);
  --brand-800: oklch(0.40 0.171 18.2);
  --brand-900: oklch(0.32 0.143 18.2);
  --brand-950: oklch(0.24 0.112 18.2);
}

Colors that work with #c30d39

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#FAF4F6
Tinted page background
Border#EDC0CB
Hairlines and dividers
Muted text#9B4B5E
Captions on the surface
Accent#09C368
Second voice, not a rival
Dark variant#780823
Hover, pressed, headers
Light variant#FDE7EC
Selected rows, tints
Dark surface#241418
Dark-mode background
Hover#A20B2F
One step down in lightness
Pressed#800925
Two steps down
Disabled#B58B95
Chroma pulled out
Focus ring#E20339
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 #c30d39

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
  • Weight59/100
  • 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#0DC397
Analogous left#C30D94
Analogous right#C33C0D
Split-complement 1#0DC33C
Split-complement 2#0D94C3
Triadic 1#39C30D
Triadic 2#0D39C3
Tetradic#94C30D
On the wheel
Base+30°−30°+120°+240°+180°346°

#c30d39 sits at 346°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red76.5%
Green5.1%
Blue22.4%
R · 0–255
195
0xc3
G · 0–255
13
0x0d
B · 0–255
57
0x39

CMYK percentages

Cyan0.0%
Magenta93.3%
Yellow70.8%
Key (black)23.5%

Total ink coverage is 188%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#c30d39 text on a black background

contrast 3.44:1

Card sample

#c30d39 text on a white background

contrast 6.11:1

Card sample

#c30d39 on grey

5.58:1

#c30d39 on its own surface

5.63:1

#c30d39 on its dark surface

2.89:1

CSS3 live lab

Text font color

The quick brown fox

color: #c30d39;
Background color
Panel with #c30d39 background
background-color: #c30d39;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #c30d39;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(195, 13, 57, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(195, 13, 57, 0.45);
Border & gradient
Gradient panel
border: 3px solid #c30d39;
background: linear-gradient(135deg, #c30d39, #C35A0D);
Gradient text

Gradient headline

background: linear-gradient(90deg, #c30d39, #C3880D);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #c30d39;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #c30d39;
caret-color: #c30d39;
Left rule
Pull quote or callout
border-left: 4px solid #c30d39;
Ring + tint
Selected chip
background: #FDE7EC;
box-shadow: inset 0 0 0 2px #c30d39;
Conic badge
68%
background: conic-gradient(#c30d39 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #c30d39 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(195, 13, 57, 0.5)
rgb(195 13 57 / 50%)
#c30d3980
hsl(346 88% 41% / 50%)
color-mix(in srgb, #c30d39 50%, transparent)
Alpha8-digit hexFlat on white
10%#c30d391a#F9E7EB
20%#c30d3933#F3CFD7
40%#c30d3966#E79EB0
60%#c30d3999#DB6E88
80%#c30d39cc#CF3D61

Gradients from #c30d39

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, #F01D50, #c30d39 45%, #780823);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #c30d39, #A65A0B);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #c30d39, #0DC397);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #F23A66 0%, #c30d39 45%, #780823 100%);
Soft wash
Section backgrounds that stay readable
background: linear-gradient(180deg, #FAF4F6, #ffffff);
Mesh
Ambient background, no image weight
background: radial-gradient(60% 60% at 15% 20%, #EF14C9 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #E0560F 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #780823 0%, transparent 65%), #c30d39;

Monochromatic scale

Palettes built from #c30d39

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.

#c30d39 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 3.44:1 — lift it to #E91044 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.

#c30d39, answered

What color is #c30d39?

#c30d39 is a dark electric red, closest to Crimson (ΔE2000 5.7). It sits at 346° on the hue wheel with 88% saturation and 41% lightness, which reads as warm.

What is the RGB value of #c30d39?

rgb(195, 13, 57) — 195 red, 13 green and 57 blue out of 255, or 76.5% / 5.1% / 22.4% by channel.

What is #c30d39 in HSL and HSV?

hsl(346, 88%, 41%) and hsv(345, 93%, 76%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #c30d39 a light or a dark color?

It is a dark color. Relative luminance is 0.1219 and perceived brightness is 43%, so white text on it reaches 6.11:1.

Should I use black or white text on #c30d39?

White. It scores 6.11:1 against #c30d39, versus 3.44:1 for black — AA at any size.

Is #c30d39 accessible on a white background?

#c30d39 on white scores 6.11:1, which clears AA at every size but not AAA.

What is the complementary color of #c30d39?

#0DC397 sits directly opposite on the wheel. Softer options are the split-complements #0DC33C and #0D94C3, which give the same contrast with far less vibration.

What colors go well with #c30d39?

For interface work: #FAF4F6 as the surface, #EDC0CB for borders, #9B4B5E for secondary text, #09C368 as an accent and #780823 for hover and pressed states. For a palette, the analogous pair #C30D94 and #C33C0D stays calm, while #0DC397 is the loudest partner.

What is #c30d39 in CMYK for printing?

cmyk(0%, 93%, 71%, 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 #c30d39 warm or cool?

Warm — it scores 25 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #C3240D; nudged cooler, #C50B7C.

Which Tailwind color is closest to #c30d39?

The rose family — its 500 step is #f43f5e, ΔE2000 14.2 away. That is a visible difference, so define #c30d39 as a custom token rather than reaching for the built-in.

How do I use #c30d39 in Tailwind CSS?

Inline it as an arbitrary value with bg-[#c30d39] or text-[#c30d39], 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 #c30d39 with 50% opacity?

rgba(195, 13, 57, 0.5), or #c30d3980 in eight-digit hex. Over white that composites to #E1869C; over black, #62071D.

Is #c30d39 a web-safe color?

No. The nearest web-safe colour is #CC0033, ΔE2000 2.6 away. The palette only matters for legacy displays and some email clients now.

What does the color #c30d39 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 #c30d39?

The safest is same-hue elevation: linear-gradient(135deg, #F01D50, #c30d39 45%, #780823). For more colour, a short hue run to #A65A0B keeps it rich without turning muddy.

Work with #c30d39 in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #c30d39 at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.