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red · warm

#a65645

a balanced, soft red · warm · closest name: Sienna

Token name suggestion: Studio Rust

RGB
166, 86, 69
HSL
11°, 41%, 46%
CMYK
0, 48, 58, 35
Luminance
0.1519

#a65645 is a balanced soft red, 11° on the wheel and 11/100 on the cool side. Put white text on it (5.20:1). As text it scores 5.20:1 on white — safe at any size. Nearest name is Sienna, nearest Tailwind family is red.

hsl(11 41% 46%)rgb(166 86 69)Base step 600AA inkWarm

At a glance

Every number on this page in one read: what #a65645 is made of, how bright it looks, and which way it leans.

Hex
#a65645
Hue
11°
red
Saturation
41%
soft
Lightness
46%
balanced
Brightness
65%
HSV value
Perceived
45%
weighted brightness
Luminance
0.1519
WCAG relative
Temperature
Warm
11/100 cool
Color family
Red
Tone
Soft
Best ink
White
5.20:1
Closest name
Sienna
ΔE2000 7
Chroma
39.8
LCH, 0–130ish
OKLCH L
0.545
perceptual lightness
Tailwind
red
500 · ΔE 14.1
Web-safe
#996633
nearest of 216
Where it sits
Hue11° of 360°
Saturation41%
Lightness46%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #a65645.

Temperature
Warm ← → Cool11% 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
Red53%
Green44%
Blue3%

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

Every format

HEX#a65645
HEX (8-digit)#a65645ff
RGBrgb(166, 86, 69)
RGBArgba(166, 86, 69, 1)
HSLhsl(11, 41%, 46%)
HSV / HSBhsv(11, 58%, 65%)
HWBhwb(11 27% 35%)
CMYKcmyk(0%, 48%, 58%, 35%)
LABlab(45.9 31.2 24.7)
LCHlch(45.9 39.8 38.4)
OKLCHoklch(0.545 0.109 33.2)
XYZ (D65)xyz(20.13, 15.19, 7.50)
Decimal10901061
Display P3color(display-p3 0.651 0.337 0.271)
Web-safe#996633

Copy-ready code

every platformclick to select
/* CSS */
color: #a65645;
background-color: #a65645;
/* CSS custom property */
--brand: #a65645;
/* Tailwind (arbitrary) */
class="text-[#a65645] bg-[#a65645]"
/* SCSS */
$brand: #a65645;
/* SwiftUI */
Color(red: 0.651, green: 0.337, blue: 0.271)
/* UIKit */
UIColor(red: 0.651, green: 0.337, blue: 0.271, alpha: 1)
/* Android XML */
<color name="brand">#A65645</color>
/* Android Compose */
Color(0xFFA65645)
/* Flutter */
Color(0xFFA65645)
/* Python / OpenCV (BGR) */
(69, 86, 166)
/* Python / PIL (RGB) */
(166, 86, 69)
/* Java AWT */
new Color(166, 86, 69)
/* .NET */
Color.FromArgb(255, 166, 86, 69)
/* OpenGL / Unity (0–1) */
(0.6510f, 0.3373f, 0.2706f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{166,86,69}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #a65645 85%, white);
border-color: color-mix(in oklab, #a65645 40%, transparent);
/* theme-aware in one line */
color: light-dark(#5A2F25, #EDD8D4);
/* relative colour syntax */
--hover: hsl(from #a65645 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: #FAF6F5;
  --brand-100: #F5ECEB;
  --brand-200: #EAD6D2;
  --brand-300: #DEB8B0;
  --brand-400: #CE9488;
  --brand-500: #BD7160;
  --brand-600: #a65645;
  --brand-700: #904B3C;
  --brand-800: #733C30;
  --brand-900: #542E26;
  --brand-950: #351D18;
  --brand: #a65645;
  --brand-ink: #ffffff;
  --brand-surface: #FAF5F4;
  --brand-border: #E7CBC5;
  --brand-hover: #8D493B;
  --brand-pressed: #743C30;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #241714;
    --brand-ink: #EDD8D4;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#FAF6F5',
        100: '#F5ECEB',
        200: '#EAD6D2',
        300: '#DEB8B0',
        400: '#CE9488',
        500: '#BD7160',
        600: '#a65645',
        700: '#904B3C',
        800: '#733C30',
        900: '#542E26',
        950: '#351D18',
        DEFAULT: '#a65645',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #FAF6F5,
  '100': #F5ECEB,
  '200': #EAD6D2,
  '300': #DEB8B0,
  '400': #CE9488,
  '500': #BD7160,
  '600': #a65645,
  '700': #904B3C,
  '800': #733C30,
  '900': #542E26,
  '950': #351D18,
);
$brand-base: #a65645;
$brand-ink: #ffffff;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#FAF6F5", "$type": "color" },
      "100": { "$value": "#F5ECEB", "$type": "color" },
      "200": { "$value": "#EAD6D2", "$type": "color" },
      "300": { "$value": "#DEB8B0", "$type": "color" },
      "400": { "$value": "#CE9488", "$type": "color" },
      "500": { "$value": "#BD7160", "$type": "color" },
      "600": { "$value": "#a65645", "$type": "color" },
      "700": { "$value": "#904B3C", "$type": "color" },
      "800": { "$value": "#733C30", "$type": "color" },
      "900": { "$value": "#542E26", "$type": "color" },
      "950": { "$value": "#351D18", "$type": "color" }
    },
    "brandInk": { "$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 #a65645 · 5.20:1
Use #ffffffAA at every size, AAA for large text only.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 5.20:1 · recommended
AA pass · AA large pass · AAA fail
Aa
Black text · 4.04:1
AA fail · AA large pass · AAA fail
Reading the other direction: #a65645 as text scores 5.20:1 on white and 4.04:1 on black.
Best tinted ink on it, if plain black or white feels flat: #F8EFED at 4.60:1.

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
#a65645 · 5.20:1
AA on whitealready passes
#a65645
The quick fox
#864538 · 7.19:1
AAA on white−9% L
#864538
The quick fox
#B15C49 · 4.50:1
AA on black+3% L
#B15C49
The quick fox
#C8887A · 7.26:1
AAA on black+17% L
#C8887A

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #A65645 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
#a65645 on white: 5.20:1
AA ✓ pass · AA-large · AAA
Aa
#a65645 on black: 4.04:1
AA ✗ fail · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #a65645 as text on that neutral, and that neutral as text on #a65645.

NeutralRatioBoth directions
White5.20:1AaAa
Slate 504.97:1AaAa
Slate 1004.75:1AaAa
Slate 2004.22:1AaAa
Slate 3003.50:1AaAa
Slate 4002.03:1AaAa
Slate 5001.09:1AaAa
Slate 6001.46:1AaAa
Slate 7001.99:1AaAa
Slate 8002.81:1AaAa
Slate 9003.43:1AaAa
Black4.04:1AaAa
Colour vision deficiency
true color
protanopia · #6A6243
deuteranopia · #7D7344
tritanopia · #B54852

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. #a65645 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.

#FAF6F5
#F5ECEB
#EAD6D2
#DEB8B0
#CE9488
#BD7160
#a65645
#904B3C
#733C30
#542E26
#351D18
Base = 600Lightest = 50 · #FAF6F5Darkest = 950 · #351D18Text 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 0.027 33.2);
  --brand-100: oklch(0.94 0.044 33.2);
  --brand-200: oklch(0.88 0.066 33.2);
  --brand-300: oklch(0.80 0.085 33.2);
  --brand-400: oklch(0.72 0.100 33.2);
  --brand-500: oklch(0.64 0.109 33.2);
  --brand-600: oklch(0.56 0.109 33.2);
  --brand-700: oklch(0.48 0.103 33.2);
  --brand-800: oklch(0.40 0.092 33.2);
  --brand-900: oklch(0.32 0.076 33.2);
  --brand-950: oklch(0.24 0.060 33.2);
}

Colors that work with #a65645

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#E7CBC5
Hairlines and dividers
Muted text#9B594B
Captions on the surface
Accent#38948D
Second voice, not a rival
Dark variant#5A2F25
Hover, pressed, headers
Light variant#F8EFED
Selected rows, tints
Dark surface#241714
Dark-mode background
Hover#8D493B
One step down in lightness
Pressed#743C30
Two steps down
Disabled#C0A29C
Chroma pulled out
Focus ring#C1553E
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 #a65645

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

Works well for
  • Body text and links on white
  • Charts, tags and secondary surfaces
  • Brand accents, badges and data highlights
  • Chart series and data categories
Use with care
  • 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.

The muted chroma softens the association — it reads considered rather than loud, which suits long-form and data-heavy screens. The mid lightness keeps it versatile in both themes.

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
  • FormalityMedium
  • EnergyMedium
  • Weight54/100
  • 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#4595A6
Analogous left#A64565
Analogous right#A68745
Split-complement 1#45A687
Split-complement 2#4565A6
Triadic 1#45A656
Triadic 2#5645A6
Tetradic#65A645
On the wheel
Base+30°−30°+120°+240°+180°11°

#a65645 sits at 11°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red65.1%
Green33.7%
Blue27.1%
R · 0–255
166
0xa6
G · 0–255
86
0x56
B · 0–255
69
0x45

CMYK percentages

Cyan0.0%
Magenta48.2%
Yellow58.4%
Key (black)34.9%

Total ink coverage is 142%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#a65645 text on a black background

contrast 4.04:1

Card sample

#a65645 text on a white background

contrast 5.20:1

Card sample

#a65645 on grey

4.75:1

#a65645 on its own surface

4.81:1

#a65645 on its dark surface

3.34:1

CSS3 live lab

Text font color

The quick brown fox

color: #a65645;
Background color
Panel with #a65645 background
background-color: #a65645;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #a65645;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(166, 86, 69, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(166, 86, 69, 0.45);
Border & gradient
Gradient panel
border: 3px solid #a65645;
background: linear-gradient(135deg, #a65645, #A69745);
Gradient text

Gradient headline

background: linear-gradient(90deg, #a65645, #9DA645);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #a65645;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #a65645;
caret-color: #a65645;
Left rule
Pull quote or callout
border-left: 4px solid #a65645;
Ring + tint
Selected chip
background: #F8EFED;
box-shadow: inset 0 0 0 2px #a65645;
Conic badge
68%
background: conic-gradient(#a65645 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #a65645 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(166, 86, 69, 0.5)
rgb(166 86 69 / 50%)
#a6564580
hsl(11 41% 46% / 50%)
color-mix(in srgb, #a65645 50%, transparent)
Alpha8-digit hexFlat on white
10%#a656451a#F6EEEC
20%#a6564533#EDDDDA
40%#a6564566#DBBBB5
60%#a6564599#CA9A8F
80%#a65645cc#B8786A

Gradients from #a65645

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, #C07768, #a65645 45%, #5A2F25);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #a65645, #908A3C);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #a65645, #4595A6);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #C98B7E 0%, #a65645 45%, #5A2F25 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%, #BD6187 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #B79F52 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #5A2F25 0%, transparent 65%), #a65645;

Monochromatic scale

Palettes built from #a65645

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.

#a65645 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

Converts to four-color process without much drama. Proof it anyway.

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 4.04:1 — lift it to #B15C49 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.

#a65645, answered

What color is #a65645?

#a65645 is a balanced soft red, closest to Sienna (ΔE2000 7). It sits at 11° on the hue wheel with 41% saturation and 46% lightness, which reads as warm.

What is the RGB value of #a65645?

rgb(166, 86, 69) — 166 red, 86 green and 69 blue out of 255, or 65.1% / 33.7% / 27.1% by channel.

What is #a65645 in HSL and HSV?

hsl(11, 41%, 46%) and hsv(11, 58%, 65%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #a65645 a light or a dark color?

It is a dark color. Relative luminance is 0.1519 and perceived brightness is 45%, so white text on it reaches 5.20:1.

Should I use black or white text on #a65645?

White. It scores 5.20:1 against #a65645, versus 4.04:1 for black — AA at any size.

Is #a65645 accessible on a white background?

#a65645 on white scores 5.20:1, which clears AA at every size but not AAA.

What is the complementary color of #a65645?

#4595A6 sits directly opposite on the wheel. Softer options are the split-complements #45A687 and #4565A6, which give the same contrast with far less vibration.

What colors go well with #a65645?

For interface work: #FAF5F4 as the surface, #E7CBC5 for borders, #9B594B for secondary text, #38948D as an accent and #5A2F25 for hover and pressed states. For a palette, the analogous pair #A64565 and #A68745 stays calm, while #4595A6 is the loudest partner.

What is #a65645 in CMYK for printing?

cmyk(0%, 48%, 58%, 35%). This is a screen-to-ink approximation — ask your printer for a proof before committing to a run.

Is #a65645 warm or cool?

Warm — it scores 11 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #A66745; nudged cooler, #A84356.

Which Tailwind color is closest to #a65645?

The red family — its 500 step is #ef4444, ΔE2000 14.1 away. That is a visible difference, so define #a65645 as a custom token rather than reaching for the built-in.

How do I use #a65645 in Tailwind CSS?

Inline it as an arbitrary value with bg-[#a65645] or text-[#a65645], 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 #a65645 with 50% opacity?

rgba(166, 86, 69, 0.5), or #a6564580 in eight-digit hex. Over white that composites to #D3ABA2; over black, #532B23.

Is #a65645 a web-safe color?

No. The nearest web-safe colour is #996633, ΔE2000 14.5 away. The palette only matters for legacy displays and some email clients now.

What does the color #a65645 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 moderate chroma the association is present but not shouted.

What gradient works with #a65645?

The safest is same-hue elevation: linear-gradient(135deg, #C07768, #a65645 45%, #5A2F25). For more colour, a short hue run to #908A3C keeps it rich without turning muddy.

Work with #a65645 in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #a65645 at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.