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yellow · warm

#ac7301

a dark, electric yellow · warm · closest name: Dark Goldenrod

Token name suggestion: Shadow Brass

RGB
172, 115, 1
HSL
40°, 99%, 34%
CMYK
0, 33, 99, 33
Luminance
0.2103

#ac7301 is a dark electric yellow, 40° on the wheel and 8/100 on the cool side. Put black text on it (5.21:1). As text it scores 4.03:1 on white — large text only. Nearest name is Dark Goldenrod, nearest Tailwind family is amber.

hsl(40 99% 34%)rgb(172 115 1)Base step 800AA inkWarm

At a glance

Every number on this page in one read: what #ac7301 is made of, how bright it looks, and which way it leans.

Hex
#ac7301
Hue
40°
yellow
Saturation
99%
electric
Lightness
34%
dark
Brightness
67%
HSV value
Perceived
51%
weighted brightness
Luminance
0.2103
WCAG relative
Temperature
Warm
8/100 cool
Color family
Yellow
Tone
Electric
Best ink
Black
5.21:1
Closest name
Dark Goldenrod
ΔE2000 6.9
Chroma
61.3
LCH, 0–130ish
OKLCH L
0.600
perceptual lightness
Tailwind
amber
500 · ΔE 17
Web-safe
#996600
nearest of 216
Where it sits
Hue40° of 360°
Saturation99%
Lightness34%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #ac7301.

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
Red42%
Green58%
Blue0%

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

Every format

HEX#ac7301
HEX (8-digit)#ac7301ff
RGBrgb(172, 115, 1)
RGBArgba(172, 115, 1, 1)
HSLhsl(40, 99%, 34%)
HSV / HSBhsv(40, 99%, 67%)
HWBhwb(40 0% 33%)
CMYKcmyk(0%, 33%, 99%, 33%)
LABlab(53.0 14.9 59.4)
LCHlch(53.0 61.3 75.9)
OKLCHoklch(0.600 0.127 74.5)
XYZ (D65)xyz(23.15, 21.04, 2.87)
Decimal11301633
Display P3color(display-p3 0.675 0.451 0.004)
Web-safe#996600

Copy-ready code

every platformclick to select
/* CSS */
color: #ac7301;
background-color: #ac7301;
/* CSS custom property */
--brand: #ac7301;
/* Tailwind (arbitrary) */
class="text-[#ac7301] bg-[#ac7301]"
/* SCSS */
$brand: #ac7301;
/* SwiftUI */
Color(red: 0.675, green: 0.451, blue: 0.004)
/* UIKit */
UIColor(red: 0.675, green: 0.451, blue: 0.004, alpha: 1)
/* Android XML */
<color name="brand">#AC7301</color>
/* Android Compose */
Color(0xFFAC7301)
/* Flutter */
Color(0xFFAC7301)
/* Python / OpenCV (BGR) */
(1, 115, 172)
/* Python / PIL (RGB) */
(172, 115, 1)
/* Java AWT */
new Color(172, 115, 1)
/* .NET */
Color.FromArgb(255, 172, 115, 1)
/* OpenGL / Unity (0–1) */
(0.6745f, 0.4510f, 0.0039f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{172,115,1}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #ac7301 85%, white);
border-color: color-mix(in oklab, #ac7301 40%, transparent);
/* theme-aware in one line */
color: light-dark(#7F5501, #EEE5D3);
/* relative colour syntax */
--hover: hsl(from #ac7301 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: #FEF9F1;
  --brand-100: #FCF4E3;
  --brand-200: #FBE8C0;
  --brand-300: #FED98F;
  --brand-400: #FEC758;
  --brand-500: #FEB420;
  --brand-600: #F3A301;
  --brand-700: #CB8801;
  --brand-800: #ac7301;
  --brand-900: #755006;
  --brand-950: #493203;
  --brand: #ac7301;
  --brand-ink: #000000;
  --brand-surface: #FAF8F4;
  --brand-border: #EDDEC0;
  --brand-hover: #885B01;
  --brand-pressed: #654301;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #241F14;
    --brand-ink: #EEE5D3;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#FEF9F1',
        100: '#FCF4E3',
        200: '#FBE8C0',
        300: '#FED98F',
        400: '#FEC758',
        500: '#FEB420',
        600: '#F3A301',
        700: '#CB8801',
        800: '#ac7301',
        900: '#755006',
        950: '#493203',
        DEFAULT: '#ac7301',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #FEF9F1,
  '100': #FCF4E3,
  '200': #FBE8C0,
  '300': #FED98F,
  '400': #FEC758,
  '500': #FEB420,
  '600': #F3A301,
  '700': #CB8801,
  '800': #ac7301,
  '900': #755006,
  '950': #493203,
);
$brand-base: #ac7301;
$brand-ink: #000000;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#FEF9F1", "$type": "color" },
      "100": { "$value": "#FCF4E3", "$type": "color" },
      "200": { "$value": "#FBE8C0", "$type": "color" },
      "300": { "$value": "#FED98F", "$type": "color" },
      "400": { "$value": "#FEC758", "$type": "color" },
      "500": { "$value": "#FEB420", "$type": "color" },
      "600": { "$value": "#F3A301", "$type": "color" },
      "700": { "$value": "#CB8801", "$type": "color" },
      "800": { "$value": "#ac7301", "$type": "color" },
      "900": { "$value": "#755006", "$type": "color" },
      "950": { "$value": "#493203", "$type": "color" }
    },
    "brandInk": { "$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 #ac7301 · 5.21:1
Use #000000AA at every size, AAA for large text only.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 4.03:1
AA fail · AA large pass · AAA fail
Aa
Black text · 5.21:1 · recommended
AA pass · AA large pass · AAA fail
Reading the other direction: #ac7301 as text scores 4.03:1 on white and 5.21:1 on black.
Best tinted ink on it, if plain black or white feels flat: #7F5501 at 1.63:1.

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
#9D6901 · 4.71:1
AA on white−3% L
#9D6901
The quick fox
#795101 · 7.02:1
AAA on white−10% L
#795101
The quick fox
#ac7301 · 5.21:1
AA on blackalready passes
#ac7301
The quick fox
#CF8B01 · 7.35:1
AAA on black+7% L
#CF8B01

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #AC7301 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
#ac7301 on white: 4.03:1
AA ✗ fail · AA-large · AAA
Aa
#ac7301 on black: 5.21:1
AA ✓ pass · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #ac7301 as text on that neutral, and that neutral as text on #ac7301.

NeutralRatioBoth directions
White4.03:1AaAa
Slate 503.85:1AaAa
Slate 1003.68:1AaAa
Slate 2003.27:1AaAa
Slate 3002.72:1AaAa
Slate 4001.57:1AaAa
Slate 5001.18:1AaAa
Slate 6001.88:1AaAa
Slate 7002.57:1AaAa
Slate 8003.63:1AaAa
Slate 9004.43:1AaAa
Black5.21:1AaAa
Colour vision deficiency
true color
protanopia · #877600
deuteranopia · #958409
tritanopia · #BC6461

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. #ac7301 is pinned to step 800; the rest hold its hue and let saturation ease off at the extremes so the pale end never turns neon.

#FEF9F1
#FCF4E3
#FBE8C0
#FED98F
#FEC758
#FEB420
#F3A301
#CB8801
#ac7301
#755006
#493203
Base = 800Lightest = 50 · #FEF9F1Darkest = 950 · #493203Text step on white = 900
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 0.032 74.5);
  --brand-100: oklch(0.94 0.051 74.5);
  --brand-200: oklch(0.88 0.076 74.5);
  --brand-300: oklch(0.80 0.099 74.5);
  --brand-400: oklch(0.72 0.116 74.5);
  --brand-500: oklch(0.64 0.127 74.5);
  --brand-600: oklch(0.56 0.127 74.5);
  --brand-700: oklch(0.48 0.119 74.5);
  --brand-800: oklch(0.40 0.106 74.5);
  --brand-900: oklch(0.32 0.089 74.5);
  --brand-950: oklch(0.24 0.070 74.5);
}

Colors that work with #ac7301

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#FAF8F4
Tinted page background
Border#EDDEC0
Hairlines and dividers
Muted text#9B804B
Captions on the surface
Accent#0065AD
Second voice, not a rival
Dark variant#7F5501
Hover, pressed, headers
Light variant#FFF6E6
Selected rows, tints
Dark surface#241F14
Dark-mode background
Hover#885B01
One step down in lightness
Pressed#654301
Two steps down
Disabled#A79776
Chroma pulled out
Focus ring#C18100
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 #ac7301

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

Works well for
  • Headings from 24px up 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
  • Small text on white — under 4.5:1
  • Full-page backgrounds — tiring over long sessions
  • Black text placed on it
  • Thin strokes and 1px borders — they disappear on light UI
  • Pairing with a same-lightness hue — edges vibrate
Minimum size as text on white
24px / 18.66px bold
Safe as a fill behind white type
No — use #7F5501
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.

optimisticalertcheap-and-cheerfulvisible

The most visible hue at low light levels, which is why it owns warnings, hazard tape and value retail.

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

Almost never passes contrast against white. Treat it as a surface or a marker, not as text.

Reads as
  • FormalityHigh
  • EnergyHigh
  • Weight66/100
  • 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#013AAC
Analogous left#AC1E01
Analogous right#8FAC01
Split-complement 1#018FAC
Split-complement 2#1E01AC
Triadic 1#01AC73
Triadic 2#7301AC
Tetradic#01AC1E
On the wheel
Base+30°−30°+120°+240°+180°40°

#ac7301 sits at 40°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red67.5%
Green45.1%
Blue0.4%
R · 0–255
172
0xac
G · 0–255
115
0x73
B · 0–255
1
0x01

CMYK percentages

Cyan0.0%
Magenta33.1%
Yellow99.4%
Key (black)32.5%

Total ink coverage is 165%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#ac7301 text on a black background

contrast 5.21:1

Card sample

#ac7301 text on a white background

contrast 4.03:1

Card sample

#ac7301 on grey

3.68:1

#ac7301 on its own surface

3.80:1

#ac7301 on its dark surface

4.06:1

CSS3 live lab

Text font color

The quick brown fox

color: #ac7301;
Background color
Panel with #ac7301 background
background-color: #ac7301;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #ac7301;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(172, 115, 1, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(172, 115, 1, 0.45);
Border & gradient
Gradient panel
border: 3px solid #ac7301;
background: linear-gradient(135deg, #ac7301, #73AC01);
Gradient text

Gradient headline

background: linear-gradient(90deg, #ac7301, #48AC01);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #ac7301;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #ac7301;
caret-color: #ac7301;
Left rule
Pull quote or callout
border-left: 4px solid #ac7301;
Ring + tint
Selected chip
background: #FFF6E6;
box-shadow: inset 0 0 0 2px #ac7301;
Conic badge
68%
background: conic-gradient(#ac7301 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #ac7301 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(172, 115, 1, 0.5)
rgb(172 115 1 / 50%)
#ac730180
hsl(40 99% 34% / 50%)
color-mix(in srgb, #ac7301 50%, transparent)
Alpha8-digit hexFlat on white
10%#ac73011a#F7F1E6
20%#ac730133#EEE3CC
40%#ac730166#DEC799
60%#ac730199#CDAB67
80%#ac7301cc#BD8F34

Gradients from #ac7301

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, #E99C01, #ac7301 45%, #7F5501);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #ac7301, #538D01);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #ac7301, #013AAC);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #FEAD0B 0%, #ac7301 45%, #7F5501 100%);
Soft wash
Section backgrounds that stay readable
background: linear-gradient(180deg, #FAF8F4, #ffffff);
Mesh
Ambient background, no image weight
background: radial-gradient(60% 60% at 15% 20%, #DF1401 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #98CA01 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #7F5501 0%, transparent 65%), #ac7301;

Monochromatic scale

Palettes built from #ac7301

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.

#ac7301 in the real world

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

Industries
RetailLeisureEnergyWarning systems
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 5.21:1.

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.

#ac7301, answered

What color is #ac7301?

#ac7301 is a dark electric yellow, closest to Dark Goldenrod (ΔE2000 6.9). It sits at 40° on the hue wheel with 99% saturation and 34% lightness, which reads as warm.

What is the RGB value of #ac7301?

rgb(172, 115, 1) — 172 red, 115 green and 1 blue out of 255, or 67.5% / 45.1% / 0.4% by channel.

What is #ac7301 in HSL and HSV?

hsl(40, 99%, 34%) and hsv(40, 99%, 67%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #ac7301 a light or a dark color?

It is a mid-tone. Relative luminance is 0.2103 and perceived brightness is 51%, so black text on it reaches 5.21:1.

Should I use black or white text on #ac7301?

Black. It scores 5.21:1 against #ac7301, versus 4.03:1 for white — AA at any size.

Is #ac7301 accessible on a white background?

#ac7301 on white scores 4.03:1, which only clears AA for large text — 18.66px bold or 24px regular and up. Darken it to #9D6901 to reach 4.5:1, or #795101 for 7:1.

What is the complementary color of #ac7301?

#013AAC sits directly opposite on the wheel. Softer options are the split-complements #018FAC and #1E01AC, which give the same contrast with far less vibration.

What colors go well with #ac7301?

For interface work: #FAF8F4 as the surface, #EDDEC0 for borders, #9B804B for secondary text, #0065AD as an accent and #7F5501 for hover and pressed states. For a palette, the analogous pair #AC1E01 and #8FAC01 stays calm, while #013AAC is the loudest partner.

What is #ac7301 in CMYK for printing?

cmyk(0%, 33%, 99%, 33%). 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 #ac7301 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 #AC5B01; nudged cooler, #A7AD00.

Which Tailwind color is closest to #ac7301?

The amber family — its 500 step is #f59e0b, ΔE2000 17 away. That is a visible difference, so define #ac7301 as a custom token rather than reaching for the built-in.

How do I use #ac7301 in Tailwind CSS?

Inline it as an arbitrary value with bg-[#ac7301] or text-[#ac7301], 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 #ac7301 with 50% opacity?

rgba(172, 115, 1, 0.5), or #ac730180 in eight-digit hex. Over white that composites to #D6B980; over black, #563A01.

Is #ac7301 a web-safe color?

No. The nearest web-safe colour is #996600, ΔE2000 5.8 away. The palette only matters for legacy displays and some email clients now.

What does the color #ac7301 mean?

As a yellow, it reads optimistic, alert, cheap-and-cheerful. The most visible hue at low light levels, which is why it owns warnings, hazard tape and value retail. At this chroma the effect is amplified — it will dominate whatever sits beside it.

What gradient works with #ac7301?

The safest is same-hue elevation: linear-gradient(135deg, #E99C01, #ac7301 45%, #7F5501). For more colour, a short hue run to #538D01 keeps it rich without turning muddy.

Work with #ac7301 in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #ac7301 at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.