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orange · warm

#d34310

a dark, electric orange · warm · closest name: Red

Token name suggestion: Dusk Marmalade

RGB
211, 67, 16
HSL
16°, 86%, 45%
CMYK
0, 68, 92, 17
Luminance
0.1790

#d34310 is a dark electric orange, 16° on the wheel and 8/100 on the cool side. Put white text on it (4.59:1). As text it scores 4.59:1 on white — safe at any size. Nearest name is Red, nearest Tailwind family is red.

hsl(16 86% 45%)rgb(211 67 16)Base step 600AA inkWarm

At a glance

Every number on this page in one read: what #d34310 is made of, how bright it looks, and which way it leans.

Hex
#d34310
Hue
16°
orange
Saturation
86%
electric
Lightness
45%
dark
Brightness
83%
HSV value
Perceived
50%
weighted brightness
Luminance
0.1790
WCAG relative
Temperature
Warm
8/100 cool
Color family
Orange
Tone
Electric
Best ink
White
4.59:1
Closest name
Red
ΔE2000 8
Chroma
78.6
LCH, 0–130ish
OKLCH L
0.584
perceptual lightness
Tailwind
red
500 · ΔE 12.1
Web-safe
#CC3300
nearest of 216
Where it sits
Hue16° of 360°
Saturation86%
Lightness45%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #d34310.

Temperature
Warm ← → Cool8% 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
Red77%
Green22%
Blue0%

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

Every format

HEX#d34310
HEX (8-digit)#d34310ff
RGBrgb(211, 67, 16)
RGBArgba(211, 67, 16, 1)
HSLhsl(16, 86%, 45%)
HSV / HSBhsv(16, 92%, 83%)
HWBhwb(16 6% 17%)
CMYKcmyk(0%, 68%, 92%, 17%)
LABlab(49.4 54.7 56.5)
LCHlch(49.4 78.6 45.9)
OKLCHoklch(0.584 0.189 36.9)
XYZ (D65)xyz(28.97, 17.91, 2.42)
Decimal13845264
Display P3color(display-p3 0.827 0.263 0.063)
Web-safe#CC3300

Copy-ready code

every platformclick to select
/* CSS */
color: #d34310;
background-color: #d34310;
/* CSS custom property */
--brand: #d34310;
/* Tailwind (arbitrary) */
class="text-[#d34310] bg-[#d34310]"
/* SCSS */
$brand: #d34310;
/* SwiftUI */
Color(red: 0.827, green: 0.263, blue: 0.063)
/* UIKit */
UIColor(red: 0.827, green: 0.263, blue: 0.063, alpha: 1)
/* Android XML */
<color name="brand">#D34310</color>
/* Android Compose */
Color(0xFFD34310)
/* Flutter */
Color(0xFFD34310)
/* Python / OpenCV (BGR) */
(16, 67, 211)
/* Python / PIL (RGB) */
(211, 67, 16)
/* Java AWT */
new Color(211, 67, 16)
/* .NET */
Color.FromArgb(255, 211, 67, 16)
/* OpenGL / Unity (0–1) */
(0.8275f, 0.2627f, 0.0627f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{211,67,16}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #d34310 85%, white);
border-color: color-mix(in oklab, #d34310 40%, transparent);
/* theme-aware in one line */
color: light-dark(#772609, #EEDAD3);
/* relative colour syntax */
--hover: hsl(from #d34310 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: #FDF5F2;
  --brand-100: #FAEBE5;
  --brand-200: #F7D2C5;
  --brand-300: #F7B097;
  --brand-400: #F38863;
  --brand-500: #EF612E;
  --brand-600: #d34310;
  --brand-700: #BE3C0E;
  --brand-800: #98300C;
  --brand-900: #6E260D;
  --brand-950: #441808;
  --brand: #d34310;
  --brand-ink: #ffffff;
  --brand-surface: #FAF6F4;
  --brand-border: #EDCCC0;
  --brand-hover: #B2380D;
  --brand-pressed: #912E0B;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #241814;
    --brand-ink: #EEDAD3;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#FDF5F2',
        100: '#FAEBE5',
        200: '#F7D2C5',
        300: '#F7B097',
        400: '#F38863',
        500: '#EF612E',
        600: '#d34310',
        700: '#BE3C0E',
        800: '#98300C',
        900: '#6E260D',
        950: '#441808',
        DEFAULT: '#d34310',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #FDF5F2,
  '100': #FAEBE5,
  '200': #F7D2C5,
  '300': #F7B097,
  '400': #F38863,
  '500': #EF612E,
  '600': #d34310,
  '700': #BE3C0E,
  '800': #98300C,
  '900': #6E260D,
  '950': #441808,
);
$brand-base: #d34310;
$brand-ink: #ffffff;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#FDF5F2", "$type": "color" },
      "100": { "$value": "#FAEBE5", "$type": "color" },
      "200": { "$value": "#F7D2C5", "$type": "color" },
      "300": { "$value": "#F7B097", "$type": "color" },
      "400": { "$value": "#F38863", "$type": "color" },
      "500": { "$value": "#EF612E", "$type": "color" },
      "600": { "$value": "#d34310", "$type": "color" },
      "700": { "$value": "#BE3C0E", "$type": "color" },
      "800": { "$value": "#98300C", "$type": "color" },
      "900": { "$value": "#6E260D", "$type": "color" },
      "950": { "$value": "#441808", "$type": "color" }
    },
    "brandInk": { "$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 #d34310 · 4.59:1
Use #ffffffAA at every size, AAA for large text only.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 4.59:1 · recommended
AA pass · AA large pass · AAA fail
Aa
Black text · 4.58:1
AA pass · AA large pass · AAA fail
Reading the other direction: #d34310 as text scores 4.59:1 on white and 4.58:1 on black.
Best tinted ink on it, if plain black or white feels flat: #FDEDE7 at 4.03:1.

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
#d34310 · 4.59:1
AA on whitealready passes
#d34310
The quick fox
#9F320C · 7.15:1
AAA on white−11% L
#9F320C
The quick fox
#d34310 · 4.58:1
AA on blackalready passes
#d34310
The quick fox
#F17144 · 7.19:1
AAA on black+16% L
#F17144

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #D34310 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
#d34310 on white: 4.59:1
AA ✓ pass · AA-large · AAA
Aa
#d34310 on black: 4.58:1
AA ✓ pass · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #d34310 as text on that neutral, and that neutral as text on #d34310.

NeutralRatioBoth directions
White4.59:1AaAa
Slate 504.38:1AaAa
Slate 1004.19:1AaAa
Slate 2003.72:1AaAa
Slate 3003.09:1AaAa
Slate 4001.79:1AaAa
Slate 5001.04:1AaAa
Slate 6001.65:1AaAa
Slate 7002.26:1AaAa
Slate 8003.19:1AaAa
Slate 9003.89:1AaAa
Black4.58:1AaAa
Colour vision deficiency
true color
protanopia · #6E6101
deuteranopia · #928100
tritanopia · #E9063B

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. #d34310 is pinned to step 600; the rest hold its hue and let saturation ease off at the extremes so the pale end never turns neon.

#FDF5F2
#FAEBE5
#F7D2C5
#F7B097
#F38863
#EF612E
#d34310
#BE3C0E
#98300C
#6E260D
#441808
Base = 600Lightest = 50 · #FDF5F2Darkest = 950 · #441808Text 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 0.047 36.9);
  --brand-100: oklch(0.94 0.075 36.9);
  --brand-200: oklch(0.88 0.113 36.9);
  --brand-300: oklch(0.80 0.147 36.9);
  --brand-400: oklch(0.72 0.174 36.9);
  --brand-500: oklch(0.64 0.189 36.9);
  --brand-600: oklch(0.56 0.189 36.9);
  --brand-700: oklch(0.48 0.177 36.9);
  --brand-800: oklch(0.40 0.158 36.9);
  --brand-900: oklch(0.32 0.132 36.9);
  --brand-950: oklch(0.24 0.104 36.9);
}

Colors that work with #d34310

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#FAF6F4
Tinted page background
Border#EDCCC0
Hairlines and dividers
Muted text#9B604B
Captions on the surface
Accent#0AC0C2
Second voice, not a rival
Dark variant#772609
Hover, pressed, headers
Light variant#FDEDE7
Selected rows, tints
Dark surface#241814
Dark-mode background
Hover#B2380D
One step down in lightness
Pressed#912E0B
Two steps down
Disabled#BCA197
Chroma pulled out
Focus ring#F24305
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 #d34310

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

Works well for
  • Body text and links on white
  • Text and icons on dark surfaces
  • 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
  • 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.

friendlyenergeticaffordablesocial

Orange is red with the aggression taken out — approachable, active, and strongly associated with buying and doing.

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

Hard to make feel premium, and it collides with the "caution" band in status systems.

Reads as
  • FormalityHigh
  • EnergyHigh
  • Weight56/100
  • 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#10A0D3
Analogous left#D3103E
Analogous right#D3A410
Split-complement 1#10D3A4
Split-complement 2#103ED3
Triadic 1#10D343
Triadic 2#4310D3
Tetradic#3ED310
On the wheel
Base+30°−30°+120°+240°+180°16°

#d34310 sits at 16°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red82.7%
Green26.3%
Blue6.3%
R · 0–255
211
0xd3
G · 0–255
67
0x43
B · 0–255
16
0x10

CMYK percentages

Cyan0.0%
Magenta68.2%
Yellow92.4%
Key (black)17.3%

Total ink coverage is 178%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#d34310 text on a black background

contrast 4.58:1

Card sample

#d34310 text on a white background

contrast 4.59:1

Card sample

#d34310 on grey

4.19:1

#d34310 on its own surface

4.27:1

#d34310 on its dark surface

3.77:1

CSS3 live lab

Text font color

The quick brown fox

color: #d34310;
Background color
Panel with #d34310 background
background-color: #d34310;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #d34310;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(211, 67, 16, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(211, 67, 16, 0.45);
Border & gradient
Gradient panel
border: 3px solid #d34310;
background: linear-gradient(135deg, #d34310, #D3C510);
Gradient text

Gradient headline

background: linear-gradient(90deg, #d34310, #B0D310);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #d34310;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #d34310;
caret-color: #d34310;
Left rule
Pull quote or callout
border-left: 4px solid #d34310;
Ring + tint
Selected chip
background: #FDEDE7;
box-shadow: inset 0 0 0 2px #d34310;
Conic badge
68%
background: conic-gradient(#d34310 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #d34310 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(211, 67, 16, 0.5)
rgb(211 67 16 / 50%)
#d3431080
hsl(16 86% 45% / 50%)
color-mix(in srgb, #d34310 50%, transparent)
Alpha8-digit hexFlat on white
10%#d343101a#FBECE7
20%#d3431033#F6D9CF
40%#d3431066#EDB49F
60%#d3431099#E58E70
80%#d34310cc#DC6940

Gradients from #d34310

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, #EF6331, #d34310 45%, #772609);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #d34310, #B5B70E);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #d34310, #10A0D3);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #F2784D 0%, #d34310 45%, #772609 100%);
Soft wash
Section backgrounds that stay readable
background: linear-gradient(180deg, #FAF6F4, #ffffff);
Mesh
Ambient background, no image weight
background: radial-gradient(60% 60% at 15% 20%, #EF2767 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #EDCC14 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #772609 0%, transparent 65%), #d34310;

Monochromatic scale

Palettes built from #d34310

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.

#d34310 in the real world

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

Industries
E-commerceFood deliveryLogisticsCreator tools
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

Usable as-is on a dark surface at 4.58:1.

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.

#d34310, answered

What color is #d34310?

#d34310 is a dark electric orange, closest to Red (ΔE2000 8). It sits at 16° on the hue wheel with 86% saturation and 45% lightness, which reads as warm.

What is the RGB value of #d34310?

rgb(211, 67, 16) — 211 red, 67 green and 16 blue out of 255, or 82.7% / 26.3% / 6.3% by channel.

What is #d34310 in HSL and HSV?

hsl(16, 86%, 45%) and hsv(16, 92%, 83%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #d34310 a light or a dark color?

It is a dark color. Relative luminance is 0.1790 and perceived brightness is 50%, so white text on it reaches 4.59:1.

Should I use black or white text on #d34310?

White. It scores 4.59:1 against #d34310, versus 4.58:1 for black — AA at any size.

Is #d34310 accessible on a white background?

#d34310 on white scores 4.59:1, which clears AA at every size but not AAA.

What is the complementary color of #d34310?

#10A0D3 sits directly opposite on the wheel. Softer options are the split-complements #10D3A4 and #103ED3, which give the same contrast with far less vibration.

What colors go well with #d34310?

For interface work: #FAF6F4 as the surface, #EDCCC0 for borders, #9B604B for secondary text, #0AC0C2 as an accent and #772609 for hover and pressed states. For a palette, the analogous pair #D3103E and #D3A410 stays calm, while #10A0D3 is the loudest partner.

What is #d34310 in CMYK for printing?

cmyk(0%, 68%, 92%, 17%). 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 #d34310 warm or cool?

Warm — it scores 8 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #EB5E12; nudged cooler, #D50E23.

Which Tailwind color is closest to #d34310?

The red family — its 500 step is #ef4444, ΔE2000 12.1 away. That is a visible difference, so define #d34310 as a custom token rather than reaching for the built-in.

How do I use #d34310 in Tailwind CSS?

Inline it as an arbitrary value with bg-[#d34310] or text-[#d34310], 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 #d34310 with 50% opacity?

rgba(211, 67, 16, 0.5), or #d3431080 in eight-digit hex. Over white that composites to #E9A188; over black, #6A2208.

Is #d34310 a web-safe color?

No. The nearest web-safe colour is #CC3300, ΔE2000 3.6 away. The palette only matters for legacy displays and some email clients now.

What does the color #d34310 mean?

As a orange, it reads friendly, energetic, affordable. Orange is red with the aggression taken out — approachable, active, and strongly associated with buying and doing. At this chroma the effect is amplified — it will dominate whatever sits beside it.

What gradient works with #d34310?

The safest is same-hue elevation: linear-gradient(135deg, #EF6331, #d34310 45%, #772609). For more colour, a short hue run to #B5B70E keeps it rich without turning muddy.

Work with #d34310 in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #d34310 at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.