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orange · warm

#f37243

a balanced, electric orange · warm · closest name: Coral

Token name suggestion: Atlas Clay

RGB
243, 114, 67
HSL
16°, 88%, 61%
CMYK
0, 53, 72, 5
Luminance
0.3149

#f37243 is a balanced electric orange, 16° on the wheel and 8/100 on the cool side. Put black text on it (7.30:1). As text it scores 2.88:1 on white — use #D2420D instead. Nearest name is Coral, nearest Tailwind family is orange.

hsl(16 88% 61%)rgb(243 114 67)Base step 500AAA inkWarm

At a glance

Every number on this page in one read: what #f37243 is made of, how bright it looks, and which way it leans.

Hex
#f37243
Hue
16°
orange
Saturation
88%
electric
Lightness
61%
balanced
Brightness
95%
HSV value
Perceived
63%
weighted brightness
Luminance
0.3149
WCAG relative
Temperature
Warm
8/100 cool
Color family
Orange
Tone
Electric
Best ink
Black
7.30:1
Closest name
Coral
ΔE2000 3.6
Chroma
67.4
LCH, 0–130ish
OKLCH L
0.698
perceptual lightness
Tailwind
orange
500 · ΔE 7.5
Web-safe
#FF6633
nearest of 216
Where it sits
Hue16° of 360°
Saturation88%
Lightness61%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #f37243.

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
Red61%
Green38%
Blue1%

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

Every format

HEX#f37243
HEX (8-digit)#f37243ff
RGBrgb(243, 114, 67)
RGBArgba(243, 114, 67, 1)
HSLhsl(16, 88%, 61%)
HSV / HSBhsv(16, 72%, 95%)
HWBhwb(16 26% 5%)
CMYKcmyk(0%, 53%, 72%, 5%)
LABlab(62.9 46.6 48.7)
LCHlch(62.9 67.4 46.3)
OKLCHoklch(0.698 0.171 39.9)
XYZ (D65)xyz(44.00, 31.50, 9.07)
Decimal15954499
Display P3color(display-p3 0.953 0.447 0.263)
Web-safe#FF6633

Copy-ready code

every platformclick to select
/* CSS */
color: #f37243;
background-color: #f37243;
/* CSS custom property */
--brand: #f37243;
/* Tailwind (arbitrary) */
class="text-[#f37243] bg-[#f37243]"
/* SCSS */
$brand: #f37243;
/* SwiftUI */
Color(red: 0.953, green: 0.447, blue: 0.263)
/* UIKit */
UIColor(red: 0.953, green: 0.447, blue: 0.263, alpha: 1)
/* Android XML */
<color name="brand">#F37243</color>
/* Android Compose */
Color(0xFFF37243)
/* Flutter */
Color(0xFFF37243)
/* Python / OpenCV (BGR) */
(67, 114, 243)
/* Python / PIL (RGB) */
(243, 114, 67)
/* Java AWT */
new Color(243, 114, 67)
/* .NET */
Color.FromArgb(255, 243, 114, 67)
/* OpenGL / Unity (0–1) */
(0.9529f, 0.4471f, 0.2627f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{243,114,67}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #f37243 85%, white);
border-color: color-mix(in oklab, #f37243 40%, transparent);
/* theme-aware in one line */
color: light-dark(#782608, #EEDAD3);
/* relative colour syntax */
--hover: hsl(from #f37243 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: #F8D2C4;
  --brand-300: #F8B096;
  --brand-400: #F58861;
  --brand-500: #f37243;
  --brand-600: #E6480F;
  --brand-700: #C03C0C;
  --brand-800: #99300A;
  --brand-900: #6F260C;
  --brand-950: #451807;
  --brand: #f37243;
  --brand-ink: #000000;
  --brand-surface: #FAF6F4;
  --brand-border: #EDCCC0;
  --brand-hover: #F15922;
  --brand-pressed: #E0460E;
}
@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: '#F8D2C4',
        300: '#F8B096',
        400: '#F58861',
        500: '#f37243',
        600: '#E6480F',
        700: '#C03C0C',
        800: '#99300A',
        900: '#6F260C',
        950: '#451807',
        DEFAULT: '#f37243',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #FDF5F2,
  '100': #FAEBE5,
  '200': #F8D2C4,
  '300': #F8B096,
  '400': #F58861,
  '500': #f37243,
  '600': #E6480F,
  '700': #C03C0C,
  '800': #99300A,
  '900': #6F260C,
  '950': #451807,
);
$brand-base: #f37243;
$brand-ink: #000000;

@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": "#F8D2C4", "$type": "color" },
      "300": { "$value": "#F8B096", "$type": "color" },
      "400": { "$value": "#F58861", "$type": "color" },
      "500": { "$value": "#f37243", "$type": "color" },
      "600": { "$value": "#E6480F", "$type": "color" },
      "700": { "$value": "#C03C0C", "$type": "color" },
      "800": { "$value": "#99300A", "$type": "color" },
      "900": { "$value": "#6F260C", "$type": "color" },
      "950": { "$value": "#451807", "$type": "color" }
    },
    "brandInk": { "$value": "#000000", "$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#000000 on #f37243 · 7.30:1
Use #000000AAA at every size.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 2.88:1
AA fail · AA large fail · AAA fail
Aa
Black text · 7.30:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #f37243 as text scores 2.88:1 on white and 7.30:1 on black.
Best tinted ink on it, if plain black or white feels flat: #782608 at 3.51:1.

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
#D2420D · 4.64:1
AA on white−17% L
#D2420D
The quick fox
#9D310A · 7.30:1
AAA on white−28% L
#9D310A
The quick fox
#f37243 · 7.30:1
AA on blackalready passes
#f37243
The quick fox
#f37243 · 7.30:1
AAA on blackalready passes
#f37243

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #F26B39 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
#f37243 on white: 2.88:1
AA ✗ fail · AA-large · AAA
Aa
#f37243 on black: 7.30:1
AA ✓ pass · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #f37243 as text on that neutral, and that neutral as text on #f37243.

NeutralRatioBoth directions
White2.88:1AaAa
Slate 502.75:1AaAa
Slate 1002.63:1AaAa
Slate 2002.33:1AaAa
Slate 3001.94:1AaAa
Slate 4001.12:1AaAa
Slate 5001.65:1AaAa
Slate 6002.63:1AaAa
Slate 7003.60:1AaAa
Slate 8005.08:1AaAa
Slate 9006.20:1AaAa
Black7.30:1AaAa
Colour vision deficiency
true color
protanopia · #95873E
deuteranopia · #B5A340
tritanopia · #FF5768

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. #f37243 is pinned to step 500; the rest hold its hue and let saturation ease off at the extremes so the pale end never turns neon.

#FDF5F2
#FAEBE5
#F8D2C4
#F8B096
#F58861
#f37243
#E6480F
#C03C0C
#99300A
#6F260C
#451807
Base = 500Lightest = 50 · #FDF5F2Darkest = 950 · #451807Text step on white = 700
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 0.043 39.9);
  --brand-100: oklch(0.94 0.068 39.9);
  --brand-200: oklch(0.88 0.102 39.9);
  --brand-300: oklch(0.80 0.133 39.9);
  --brand-400: oklch(0.72 0.157 39.9);
  --brand-500: oklch(0.64 0.171 39.9);
  --brand-600: oklch(0.56 0.171 39.9);
  --brand-700: oklch(0.48 0.160 39.9);
  --brand-800: oklch(0.40 0.143 39.9);
  --brand-900: oklch(0.32 0.119 39.9);
  --brand-950: oklch(0.24 0.094 39.9);
}

Colors that work with #f37243

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

Text on it#000000
Black wins here
Surface#FAF6F4
Tinted page background
Border#EDCCC0
Hairlines and dividers
Muted text#9B604B
Captions on the surface
Accent#08C1C4
Second voice, not a rival
Dark variant#782608
Hover, pressed, headers
Light variant#FDEDE7
Selected rows, tints
Dark surface#241814
Dark-mode background
Hover#F15922
One step down in lightness
Pressed#E0460E
Two steps down
Disabled#DDCFC9
Chroma pulled out
Focus ring#FD7C4D
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 #f37243

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

Works well for
  • Text and icons on dark surfaces
  • Primary buttons and calls to action
  • Focus rings, active and selected states
  • Brand accents, badges and data highlights
  • Chart series and data categories
Use with care
  • Text of any size on white — fails WCAG AA
  • Full-page backgrounds — tiring over long sessions
  • Pairing with a same-lightness hue — edges vibrate
Minimum size as text on white
Not as text
Safe as a fill behind white type
No — use #782608
Safe as a 1px border on white
No — use #F26B39

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 mid lightness keeps it versatile in both themes.

Worth knowing

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

Reads as
  • FormalityLow
  • EnergyHigh
  • Weight39/100
  • 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#43C4F3
Analogous left#F3436C
Analogous right#F3CA43
Split-complement 1#43F3CA
Split-complement 2#436CF3
Triadic 1#43F372
Triadic 2#7243F3
Tetradic#6CF343
On the wheel
Base+30°−30°+120°+240°+180°16°

#f37243 sits at 16°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red95.3%
Green44.7%
Blue26.3%
R · 0–255
243
0xf3
G · 0–255
114
0x72
B · 0–255
67
0x43

CMYK percentages

Cyan0.0%
Magenta53.1%
Yellow72.4%
Key (black)4.7%

Total ink coverage is 130%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#f37243 text on a black background

contrast 7.30:1

Card sample

#f37243 text on a white background

contrast 2.88:1

Card sample

#f37243 on grey

2.63:1

#f37243 on its own surface

2.68:1

#f37243 on its dark surface

6.00:1

CSS3 live lab

Text font color

The quick brown fox

color: #f37243;
Background color
Panel with #f37243 background
background-color: #f37243;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #f37243;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(243, 114, 67, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(243, 114, 67, 0.45);
Border & gradient
Gradient panel
border: 3px solid #f37243;
background: linear-gradient(135deg, #f37243, #F3E743);
Gradient text

Gradient headline

background: linear-gradient(90deg, #f37243, #D3F343);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #f37243;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #f37243;
caret-color: #f37243;
Left rule
Pull quote or callout
border-left: 4px solid #f37243;
Ring + tint
Selected chip
background: #FDEDE7;
box-shadow: inset 0 0 0 2px #f37243;
Conic badge
68%
background: conic-gradient(#f37243 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #f37243 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(243, 114, 67, 0.5)
rgb(243 114 67 / 50%)
#f3724380
hsl(16 88% 61% / 50%)
color-mix(in srgb, #f37243 50%, transparent)
Alpha8-digit hexFlat on white
10%#f372431a#FEF1EC
20%#f3724333#FDE3D9
40%#f3724366#FAC7B4
60%#f3724399#F8AA8E
80%#f37243cc#F58E69

Gradients from #f37243

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, #F79D7D, #f37243 45%, #782608);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #f37243, #EEF126);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #f37243, #43C4F3);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #F9B399 0%, #f37243 45%, #782608 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%, #F6739D 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #F5DE60 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #782608 0%, transparent 65%), #f37243;

Monochromatic scale

Palettes built from #f37243

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.

#f37243 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 7.30:1.

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.

#f37243, answered

What color is #f37243?

#f37243 is a balanced electric orange, closest to Coral (ΔE2000 3.6). It sits at 16° on the hue wheel with 88% saturation and 61% lightness, which reads as warm.

What is the RGB value of #f37243?

rgb(243, 114, 67) — 243 red, 114 green and 67 blue out of 255, or 95.3% / 44.7% / 26.3% by channel.

What is #f37243 in HSL and HSV?

hsl(16, 88%, 61%) and hsv(16, 72%, 95%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #f37243 a light or a dark color?

It is a mid-tone. Relative luminance is 0.3149 and perceived brightness is 63%, so black text on it reaches 7.30:1.

Should I use black or white text on #f37243?

Black. It scores 7.30:1 against #f37243, versus 2.88:1 for white — AAA at any size.

Is #f37243 accessible on a white background?

#f37243 on white scores 2.88:1, which fails WCAG AA at every size. Darken it to #D2420D to reach 4.5:1, or #9D310A for 7:1.

What is the complementary color of #f37243?

#43C4F3 sits directly opposite on the wheel. Softer options are the split-complements #43F3CA and #436CF3, which give the same contrast with far less vibration.

What colors go well with #f37243?

For interface work: #FAF6F4 as the surface, #EDCCC0 for borders, #9B604B for secondary text, #08C1C4 as an accent and #782608 for hover and pressed states. For a palette, the analogous pair #F3436C and #F3CA43 stays calm, while #43C4F3 is the loudest partner.

What is #f37243 in CMYK for printing?

cmyk(0%, 53%, 72%, 5%). 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 #f37243 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 #F5925B; nudged cooler, #F54153.

Which Tailwind color is closest to #f37243?

The orange family — its 500 step is #f97316, ΔE2000 7.5 away. That is a visible difference, so define #f37243 as a custom token rather than reaching for the built-in.

How do I use #f37243 in Tailwind CSS?

Inline it as an arbitrary value with bg-[#f37243] or text-[#f37243], 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 #f37243 with 50% opacity?

rgba(243, 114, 67, 0.5), or #f3724380 in eight-digit hex. Over white that composites to #F9B9A1; over black, #7A3922.

Is #f37243 a web-safe color?

No. The nearest web-safe colour is #FF6633, ΔE2000 2.9 away. The palette only matters for legacy displays and some email clients now.

What does the color #f37243 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 #f37243?

The safest is same-hue elevation: linear-gradient(135deg, #F79D7D, #f37243 45%, #782608). For more colour, a short hue run to #EEF126 keeps it rich without turning muddy.

Work with #f37243 in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #f37243 at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.