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yellow · warm

#f5d40c

a balanced, electric yellow · warm · closest name: Gold

Token name suggestion: True Citron

RGB
245, 212, 12
HSL
52°, 92%, 50%
CMYK
0, 14, 95, 4
Luminance
0.6653

#f5d40c is a balanced electric yellow, 52° on the wheel and 18/100 on the cool side. Put black text on it (14.31:1). As text it scores 1.47:1 on white — use #867406 instead. Nearest name is Gold, nearest Tailwind family is yellow.

hsl(52 92% 50%)rgb(245 212 12)Base step 600AAA inkWarm

At a glance

Every number on this page in one read: what #f5d40c is made of, how bright it looks, and which way it leans.

Hex
#f5d40c
Hue
52°
yellow
Saturation
92%
electric
Lightness
50%
balanced
Brightness
96%
HSV value
Perceived
83%
weighted brightness
Luminance
0.6653
WCAG relative
Temperature
Warm
18/100 cool
Color family
Yellow
Tone
Electric
Best ink
Black
14.31:1
Closest name
Gold
ΔE2000 1.9
Chroma
84.6
LCH, 0–130ish
OKLCH L
0.872
perceptual lightness
Tailwind
yellow
500 · ΔE 9.7
Web-safe
#FFCC00
nearest of 216
Where it sits
Hue52° of 360°
Saturation92%
Lightness50%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #f5d40c.

Temperature
Warm ← → Cool18% 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
Red29%
Green71%
Blue0%

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

Every format

HEX#f5d40c
HEX (8-digit)#f5d40cff
RGBrgb(245, 212, 12)
RGBArgba(245, 212, 12, 1)
HSLhsl(52, 92%, 50%)
HSV / HSBhsv(52, 95%, 96%)
HWBhwb(52 5% 4%)
CMYKcmyk(0%, 14%, 95%, 4%)
LABlab(85.3 -4.6 84.5)
LCHlch(85.3 84.6 93.1)
OKLCHoklch(0.872 0.178 97.6)
XYZ (D65)xyz(61.27, 66.53, 9.96)
Decimal16110604
Display P3color(display-p3 0.961 0.831 0.047)
Web-safe#FFCC00

Copy-ready code

every platformclick to select
/* CSS */
color: #f5d40c;
background-color: #f5d40c;
/* CSS custom property */
--brand: #f5d40c;
/* Tailwind (arbitrary) */
class="text-[#f5d40c] bg-[#f5d40c]"
/* SCSS */
$brand: #f5d40c;
/* SwiftUI */
Color(red: 0.961, green: 0.831, blue: 0.047)
/* UIKit */
UIColor(red: 0.961, green: 0.831, blue: 0.047, alpha: 1)
/* Android XML */
<color name="brand">#F5D40C</color>
/* Android Compose */
Color(0xFFF5D40C)
/* Flutter */
Color(0xFFF5D40C)
/* Python / OpenCV (BGR) */
(12, 212, 245)
/* Python / PIL (RGB) */
(245, 212, 12)
/* Java AWT */
new Color(245, 212, 12)
/* .NET */
Color.FromArgb(255, 245, 212, 12)
/* OpenGL / Unity (0–1) */
(0.9608f, 0.8314f, 0.0471f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{245,212,12}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #f5d40c 85%, white);
border-color: color-mix(in oklab, #f5d40c 40%, transparent);
/* theme-aware in one line */
color: light-dark(#7A6A05, #EEEAD3);
/* relative colour syntax */
--hover: hsl(from #f5d40c 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: #FDFBF2;
  --brand-100: #FBF8E4;
  --brand-200: #F9F1C3;
  --brand-300: #FBEC93;
  --brand-400: #F8E25D;
  --brand-500: #F6D927;
  --brand-600: #f5d40c;
  --brand-700: #C4A908;
  --brand-800: #9D8706;
  --brand-900: #716209;
  --brand-950: #473D06;
  --brand: #f5d40c;
  --brand-ink: #000000;
  --brand-surface: #FAFAF4;
  --brand-border: #EDE6C0;
  --brand-hover: #D5B809;
  --brand-pressed: #B29A07;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #242214;
    --brand-ink: #EEEAD3;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#FDFBF2',
        100: '#FBF8E4',
        200: '#F9F1C3',
        300: '#FBEC93',
        400: '#F8E25D',
        500: '#F6D927',
        600: '#f5d40c',
        700: '#C4A908',
        800: '#9D8706',
        900: '#716209',
        950: '#473D06',
        DEFAULT: '#f5d40c',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #FDFBF2,
  '100': #FBF8E4,
  '200': #F9F1C3,
  '300': #FBEC93,
  '400': #F8E25D,
  '500': #F6D927,
  '600': #f5d40c,
  '700': #C4A908,
  '800': #9D8706,
  '900': #716209,
  '950': #473D06,
);
$brand-base: #f5d40c;
$brand-ink: #000000;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#FDFBF2", "$type": "color" },
      "100": { "$value": "#FBF8E4", "$type": "color" },
      "200": { "$value": "#F9F1C3", "$type": "color" },
      "300": { "$value": "#FBEC93", "$type": "color" },
      "400": { "$value": "#F8E25D", "$type": "color" },
      "500": { "$value": "#F6D927", "$type": "color" },
      "600": { "$value": "#f5d40c", "$type": "color" },
      "700": { "$value": "#C4A908", "$type": "color" },
      "800": { "$value": "#9D8706", "$type": "color" },
      "900": { "$value": "#716209", "$type": "color" },
      "950": { "$value": "#473D06", "$type": "color" }
    },
    "brandInk": { "$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 #f5d40c · 14.31:1
Use #000000AAA at every size.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 1.47:1
AA fail · AA large fail · AAA fail
Aa
Black text · 14.31:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #f5d40c as text scores 1.47:1 on white and 14.31:1 on black.
Best tinted ink on it, if plain black or white feels flat: #7A6A05 at 3.68:1.

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
#867406 · 4.65:1
AA on white−23% L
#867406
The quick fox
#645604 · 7.31:1
AAA on white−30% L
#645604
The quick fox
#f5d40c · 14.31:1
AA on blackalready passes
#f5d40c
The quick fox
#f5d40c · 14.31:1
AAA on blackalready passes
#f5d40c

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #A99207 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
#f5d40c on white: 1.47:1
AA ✗ fail · AA-large · AAA
Aa
#f5d40c on black: 14.31:1
AA ✓ pass · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #f5d40c as text on that neutral, and that neutral as text on #f5d40c.

NeutralRatioBoth directions
White1.47:1AaAa
Slate 501.40:1AaAa
Slate 1001.34:1AaAa
Slate 2001.19:1AaAa
Slate 3001.01:1AaAa
Slate 4001.75:1AaAa
Slate 5003.24:1AaAa
Slate 6005.16:1AaAa
Slate 7007.05:1AaAa
Slate 8009.97:1AaAa
Slate 90012.16:1AaAa
Black14.31:1AaAa
Colour vision deficiency
true color
protanopia · #EBCF00
deuteranopia · #F4DA28
tritanopia · #FFC2B5

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. #f5d40c 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.

#FDFBF2
#FBF8E4
#F9F1C3
#FBEC93
#F8E25D
#F6D927
#f5d40c
#C4A908
#9D8706
#716209
#473D06
Base = 600Lightest = 50 · #FDFBF2Darkest = 950 · #473D06Text 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 0.045 97.6);
  --brand-100: oklch(0.94 0.071 97.6);
  --brand-200: oklch(0.88 0.107 97.6);
  --brand-300: oklch(0.80 0.139 97.6);
  --brand-400: oklch(0.72 0.164 97.6);
  --brand-500: oklch(0.64 0.178 97.6);
  --brand-600: oklch(0.56 0.178 97.6);
  --brand-700: oklch(0.48 0.168 97.6);
  --brand-800: oklch(0.40 0.150 97.6);
  --brand-900: oklch(0.32 0.125 97.6);
  --brand-950: oklch(0.24 0.098 97.6);
}

Colors that work with #f5d40c

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#FAFAF4
Tinted page background
Border#EDE6C0
Hairlines and dividers
Muted text#9B904B
Captions on the surface
Accent#0766FA
Second voice, not a rival
Dark variant#7A6A05
Hover, pressed, headers
Light variant#FEFBE7
Selected rows, tints
Dark surface#242214
Dark-mode background
Hover#D5B809
One step down in lightness
Pressed#B29A07
Two steps down
Disabled#C8C4A9
Chroma pulled out
Focus ring#FFDE16
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 #f5d40c

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
  • Thin strokes and 1px borders — they disappear on light UI
  • 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 #7A6A05
Safe as a 1px border on white
No — use #A99207

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 mid lightness keeps it versatile in both themes.

Worth knowing

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

Reads as
  • FormalityLow
  • EnergyHigh
  • Weight50/100
  • 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#0C2DF5
Analogous left#F5600C
Analogous right#A2F50C
Split-complement 1#0CA2F5
Split-complement 2#600CF5
Triadic 1#0CF5D4
Triadic 2#D40CF5
Tetradic#0CF560
On the wheel
Base+30°−30°+120°+240°+180°52°

#f5d40c sits at 52°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red96.1%
Green83.1%
Blue4.7%
R · 0–255
245
0xf5
G · 0–255
212
0xd4
B · 0–255
12
0x0c

CMYK percentages

Cyan0.0%
Magenta13.5%
Yellow95.1%
Key (black)3.9%

Total ink coverage is 113%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#f5d40c text on a black background

contrast 14.31:1

Card sample

#f5d40c text on a white background

contrast 1.47:1

Card sample

#f5d40c on grey

1.34:1

#f5d40c on its own surface

1.40:1

#f5d40c on its dark surface

10.89:1

CSS3 live lab

Text font color

The quick brown fox

color: #f5d40c;
Background color
Panel with #f5d40c background
background-color: #f5d40c;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #f5d40c;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(245, 212, 12, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(245, 212, 12, 0.45);
Border & gradient
Gradient panel
border: 3px solid #f5d40c;
background: linear-gradient(135deg, #f5d40c, #7BF50C);
Gradient text

Gradient headline

background: linear-gradient(90deg, #f5d40c, #40F50C);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #f5d40c;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #f5d40c;
caret-color: #f5d40c;
Left rule
Pull quote or callout
border-left: 4px solid #f5d40c;
Ring + tint
Selected chip
background: #FEFBE7;
box-shadow: inset 0 0 0 2px #f5d40c;
Conic badge
68%
background: conic-gradient(#f5d40c 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #f5d40c 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(245, 212, 12, 0.5)
rgb(245 212 12 / 50%)
#f5d40c80
hsl(52 92% 50% / 50%)
color-mix(in srgb, #f5d40c 50%, transparent)
Alpha8-digit hexFlat on white
10%#f5d40c1a#FEFBE7
20%#f5d40c33#FDF6CE
40%#f5d40c66#FBEE9E
60%#f5d40c99#F9E56D
80%#f5d40ccc#F7DD3D

Gradients from #f5d40c

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, #F7DE47, #f5d40c 45%, #7A6A05);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #f5d40c, #5BD909);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #f5d40c, #0C2DF5);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #F9E464 0%, #f5d40c 45%, #7A6A05 100%);
Soft wash
Section backgrounds that stay readable
background: linear-gradient(180deg, #FAFAF4, #ffffff);
Mesh
Ambient background, no image weight
background: radial-gradient(60% 60% at 15% 20%, #F7703D 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #9CF629 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #7A6A05 0%, transparent 65%), #f5d40c;

Monochromatic scale

Palettes built from #f5d40c

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.

#f5d40c 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 14.31:1.

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.

#f5d40c, answered

What color is #f5d40c?

#f5d40c is a balanced electric yellow, closest to Gold (ΔE2000 1.9). It sits at 52° on the hue wheel with 92% saturation and 50% lightness, which reads as warm.

What is the RGB value of #f5d40c?

rgb(245, 212, 12) — 245 red, 212 green and 12 blue out of 255, or 96.1% / 83.1% / 4.7% by channel.

What is #f5d40c in HSL and HSV?

hsl(52, 92%, 50%) and hsv(52, 95%, 96%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #f5d40c a light or a dark color?

It is a light color. Relative luminance is 0.6653 and perceived brightness is 83%, so black text on it reaches 14.31:1.

Should I use black or white text on #f5d40c?

Black. It scores 14.31:1 against #f5d40c, versus 1.47:1 for white — AAA at any size.

Is #f5d40c accessible on a white background?

#f5d40c on white scores 1.47:1, which fails WCAG AA at every size. Darken it to #867406 to reach 4.5:1, or #645604 for 7:1.

What is the complementary color of #f5d40c?

#0C2DF5 sits directly opposite on the wheel. Softer options are the split-complements #0CA2F5 and #600CF5, which give the same contrast with far less vibration.

What colors go well with #f5d40c?

For interface work: #FAFAF4 as the surface, #EDE6C0 for borders, #9B904B for secondary text, #0766FA as an accent and #7A6A05 for hover and pressed states. For a palette, the analogous pair #F5600C and #A2F50C stays calm, while #0C2DF5 is the loudest partner.

What is #f5d40c in CMYK for printing?

cmyk(0%, 14%, 95%, 4%). 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 #f5d40c warm or cool?

Warm — it scores 18 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #F5A20C; nudged cooler, #C2F80A.

Which Tailwind color is closest to #f5d40c?

The yellow family — its 500 step is #eab308, ΔE2000 9.7 away. That is a visible difference, so define #f5d40c as a custom token rather than reaching for the built-in.

How do I use #f5d40c in Tailwind CSS?

Inline it as an arbitrary value with bg-[#f5d40c] or text-[#f5d40c], 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 #f5d40c with 50% opacity?

rgba(245, 212, 12, 0.5), or #f5d40c80 in eight-digit hex. Over white that composites to #FAEA86; over black, #7B6A06.

Is #f5d40c a web-safe color?

No. The nearest web-safe colour is #FFCC00, ΔE2000 4.7 away. The palette only matters for legacy displays and some email clients now.

What does the color #f5d40c 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 #f5d40c?

The safest is same-hue elevation: linear-gradient(135deg, #F7DE47, #f5d40c 45%, #7A6A05). For more colour, a short hue run to #5BD909 keeps it rich without turning muddy.

Work with #f5d40c in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #f5d40c at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.