#fbe621
a balanced, electric yellow · warm · closest name: Gold
Token name suggestion: Studio Honey
#fbe621 is a balanced electric yellow, 54° on the wheel and 20/100 on the cool side. Put black text on it (16.44:1). As text it scores 1.28:1 on white — use #817502 instead. Nearest name is Gold, nearest Tailwind family is yellow.
At a glance
Every number on this page in one read: what #fbe621 is made of, how bright it looks, and which way it leans.
Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #fbe621.
Reads warm. Warm and cool siblings keep the same lightness, so you can swap one in without redoing your contrast maths.
Green carries most of what the eye calls brightness — that is why WCAG weights it 0.7152.
Every format
| HEX | #fbe621 |
| HEX (8-digit) | #fbe621ff |
| RGB | rgb(251, 230, 33) |
| RGBA | rgba(251, 230, 33, 1) |
| HSL | hsl(54, 97%, 56%) |
| HSV / HSB | hsv(54, 87%, 98%) |
| HWB | hwb(54 13% 2%) |
| CMYK | cmyk(0%, 8%, 87%, 2%) |
| LAB | lab(90.4 -10.7 85.7) |
| LCH | lch(90.4 86.3 97.1) |
| OKLCH | oklch(0.914 0.186 102.5) |
| XYZ (D65) | xyz(68.36, 77.22, 12.74) |
| Decimal | 16508449 |
| Display P3 | color(display-p3 0.984 0.902 0.129) |
| Web-safe | #FFFF33 |
Copy-ready code
/* CSS */
color: #fbe621;
background-color: #fbe621;
/* CSS custom property */
--brand: #fbe621;
/* Tailwind (arbitrary) */
class="text-[#fbe621] bg-[#fbe621]"
/* SCSS */
$brand: #fbe621;
/* SwiftUI */
Color(red: 0.984, green: 0.902, blue: 0.129)
/* UIKit */
UIColor(red: 0.984, green: 0.902, blue: 0.129, alpha: 1)
/* Android XML */
<color name="brand">#FBE621</color>
/* Android Compose */
Color(0xFFFBE621)
/* Flutter */
Color(0xFFFBE621)
/* Python / OpenCV (BGR) */
(33, 230, 251)
/* Python / PIL (RGB) */
(251, 230, 33)
/* Java AWT */
new Color(251, 230, 33)
/* .NET */
Color.FromArgb(255, 251, 230, 33)
/* OpenGL / Unity (0–1) */
(0.9843f, 0.9020f, 0.1294f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{251,230,33}/* mix without leaving CSS */ background: color-mix(in oklab, #fbe621 85%, white); border-color: color-mix(in oklab, #fbe621 40%, transparent); /* theme-aware in one line */ color: light-dark(#7D7102, #EEECD3); /* relative colour syntax */ --hover: hsl(from #fbe621 h s calc(l - 7));
Design tokens
The same ramp in the four formats a team actually needs. Paste one and the whole palette lands with it.
:root {
--brand-50: #FDFCF1;
--brand-100: #FCF9E4;
--brand-200: #FBF5C1;
--brand-300: #FDF391;
--brand-400: #FCEC5A;
--brand-500: #fbe621;
--brand-600: #F1DA04;
--brand-700: #C8B504;
--brand-800: #A09103;
--brand-900: #746907;
--brand-950: #484204;
--brand: #fbe621;
--brand-ink: #000000;
--brand-surface: #FAFAF4;
--brand-border: #EDE8C0;
--brand-hover: #F4DD04;
--brand-pressed: #D1BD04;
}
@media (prefers-color-scheme: dark) {
:root {
--brand-surface: #242314;
--brand-ink: #EEECD3;
}
}theme: {
extend: {
colors: {
brand: {
50: '#FDFCF1',
100: '#FCF9E4',
200: '#FBF5C1',
300: '#FDF391',
400: '#FCEC5A',
500: '#fbe621',
600: '#F1DA04',
700: '#C8B504',
800: '#A09103',
900: '#746907',
950: '#484204',
DEFAULT: '#fbe621',
},
},
},
}$brand: (
'50': #FDFCF1,
'100': #FCF9E4,
'200': #FBF5C1,
'300': #FDF391,
'400': #FCEC5A,
'500': #fbe621,
'600': #F1DA04,
'700': #C8B504,
'800': #A09103,
'900': #746907,
'950': #484204,
);
$brand-base: #fbe621;
$brand-ink: #000000;
@function brand($step) { @return map-get($brand, $step); }{
"color": {
"brand": {
"50": { "$value": "#FDFCF1", "$type": "color" },
"100": { "$value": "#FCF9E4", "$type": "color" },
"200": { "$value": "#FBF5C1", "$type": "color" },
"300": { "$value": "#FDF391", "$type": "color" },
"400": { "$value": "#FCEC5A", "$type": "color" },
"500": { "$value": "#fbe621", "$type": "color" },
"600": { "$value": "#F1DA04", "$type": "color" },
"700": { "$value": "#C8B504", "$type": "color" },
"800": { "$value": "#A09103", "$type": "color" },
"900": { "$value": "#746907", "$type": "color" },
"950": { "$value": "#484204", "$type": "color" }
},
"brandInk": { "$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.
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.
Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #A49403 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
Contrast is symmetric, so each row covers both directions: #fbe621 as text on that neutral, and that neutral as text on #fbe621.
| Neutral | Ratio | Verdict | Both directions |
|---|---|---|---|
| White#ffffff | 1.28:1 | AAAA lgAAA | AaAa |
| Slate 50#f8fafc | 1.22:1 | AAAA lgAAA | AaAa |
| Slate 100#f1f5f9 | 1.17:1 | AAAA lgAAA | AaAa |
| Slate 200#e2e8f0 | 1.04:1 | AAAA lgAAA | AaAa |
| Slate 300#cbd5e1 | 1.16:1 | AAAA lgAAA | AaAa |
| Slate 400#94a3b8 | 2.01:1 | AAAA lgAAA | AaAa |
| Slate 500#64748b | 3.73:1 | AAAA lgAAA | AaAa |
| Slate 600#475569 | 5.93:1 | AAAA lgAAA | AaAa |
| Slate 700#334155 | 8.11:1 | AAAA lgAAA | AaAa |
| Slate 800#1e293b | 11.45:1 | AAAA lgAAA | AaAa |
| Slate 900#0f172a | 13.98:1 | AAAA lgAAA | AaAa |
| Black#000000 | 16.44:1 | AAAA lgAAA | AaAa |
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. #fbe621 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.
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.
:root {
--brand-50: oklch(0.97 0.047 102.5);
--brand-100: oklch(0.94 0.075 102.5);
--brand-200: oklch(0.88 0.112 102.5);
--brand-300: oklch(0.80 0.145 102.5);
--brand-400: oklch(0.72 0.171 102.5);
--brand-500: oklch(0.64 0.186 102.5);
--brand-600: oklch(0.56 0.186 102.5);
--brand-700: oklch(0.48 0.175 102.5);
--brand-800: oklch(0.40 0.157 102.5);
--brand-900: oklch(0.32 0.130 102.5);
--brand-950: oklch(0.24 0.103 102.5);
}Colors that work with #fbe621
Not a palette — a role sheet. Each swatch answers one question you will hit while building the component.
Surface, border, heading and body all derive from this one hue, so the screen stays coherent without a second palette.
Lightness flips, hue holds. The accent stays the anchor in both themes.
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.
Focus ring uses the light variant so the field still reads as one shape.
The file stays available for seven days. Download it before it expires.
How to use #fbe621
Derived from its contrast, chroma and lightness — not from taste.
- ✓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
- ⚠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
Meaning and mood
What a colour in this family tends to signal, and how this particular chroma and lightness change the reading.
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.
Almost never passes contrast against white. Treat it as a surface or a marker, not as text.
- FormalityLow
- EnergyHigh
- Weight44/100
- 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 | #2136FB | Directly opposite — maximum tension | |
| Analogous left | #FB7921 | Neighbour, quieter | |
| Analogous right | #A3FB21 | Neighbour, quieter | |
| Split-complement 1 | #21A3FB | Contrast without the clash | |
| Split-complement 2 | #7921FB | Contrast without the clash | |
| Triadic 1 | #21FBE6 | Even thirds — balanced and loud | |
| Triadic 2 | #E621FB | Even thirds — balanced and loud | |
| Tetradic | #21FB79 | Fourth corner of the square scheme |
#fbe621 sits at 54°. Every dot is a harmony position and links to its own page in the table alongside.
RGB percentages
CMYK percentages
Total ink coverage is 97%. Most commercial presses cap around 300% — above that, sheets stop drying properly.
Color previews
#fbe621 text on a black background
contrast 16.44:1
#fbe621 text on a white background
contrast 1.28:1
#fbe621 on grey
1.17:1
#fbe621 on its own surface
1.22:1
#fbe621 on its dark surface
12.40:1
CSS3 live lab
The quick brown fox
color: #fbe621;
background-color: #fbe621;
Glowing headline
text-shadow: 2px 2px 8px #fbe621;
Soft neon halo
text-shadow: 0 0 14px rgba(251, 230, 33, 0.45);
box-shadow: 0 12px 32px -8px rgba(251, 230, 33, 0.45);
border: 3px solid #fbe621; background: linear-gradient(135deg, #fbe621, #7FFB21);
Gradient headline
background: linear-gradient(90deg, #fbe621, #48FB21); -webkit-background-clip: text; color: transparent;
outline: 2px solid #fbe621; outline-offset: 3px;
Marked up text
text-decoration-color: #fbe621; caret-color: #fbe621;
border-left: 4px solid #fbe621;
background: #FFFCE6; box-shadow: inset 0 0 0 2px #fbe621;
background: conic-gradient(#fbe621 68%, #e2e8f0 0);
Transparency
What each alpha value actually composites to. The top row is #fbe621 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.
rgba(251, 230, 33, 0.5) rgb(251 230 33 / 50%) #fbe62180 hsl(54 97% 56% / 50%) color-mix(in srgb, #fbe621 50%, transparent)
| Alpha | 8-digit hex | Flat on white |
|---|---|---|
| 10% | #fbe6211a | #FFFDE9 |
| 20% | #fbe62133 | #FEFAD3 |
| 40% | #fbe62166 | #FDF5A6 |
| 60% | #fbe62199 | #FDF07A |
| 80% | #fbe621cc | #FCEB4D |
Gradients from #fbe621
Six recipes, each built from this hex and shown with the exact CSS that produced it.
background: linear-gradient(135deg, #FCED5D, #fbe621 45%, #7D7102);
background: linear-gradient(120deg, #fbe621, #59F904);
background: linear-gradient(90deg, #fbe621, #2136FB);
background: radial-gradient(120% 120% at 20% 0%, #FDF07B 0%, #fbe621 45%, #7D7102 100%);
background: linear-gradient(180deg, #FAFAF4, #ffffff);
background: radial-gradient(60% 60% at 15% 20%, #FC8953 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #A0FC3F 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #7D7102 0%, transparent 65%), #fbe621;
Monochromatic scale
Palettes built from #fbe621
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.
Closest color with a full write-up: Dandelion (#f0e130) — ΔE2000 2.2 away, with its history, psychology and brand usage.
#fbe621 in the real world
Where a color in this family tends to land, and the interface roles it is usually asked to play.
Sits outside most CMYK gamuts — expect a duller press result, or specify a spot ink.
Holds up across typical panel gamma. Still worth checking on an uncalibrated laptop, where mid-tones shift most.
Usable as-is on a dark surface at 16.44:1.
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.
#fbe621, answered
What color is #fbe621?
#fbe621 is a balanced electric yellow, closest to Gold (ΔE2000 5.3). It sits at 54° on the hue wheel with 97% saturation and 56% lightness, which reads as warm.
What is the RGB value of #fbe621?
rgb(251, 230, 33) — 251 red, 230 green and 33 blue out of 255, or 98.4% / 90.2% / 12.9% by channel.
What is #fbe621 in HSL and HSV?
hsl(54, 97%, 56%) and hsv(54, 87%, 98%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.
Is #fbe621 a light or a dark color?
It is a light color. Relative luminance is 0.7721 and perceived brightness is 88%, so black text on it reaches 16.44:1.
Should I use black or white text on #fbe621?
Black. It scores 16.44:1 against #fbe621, versus 1.28:1 for white — AAA at any size.
Is #fbe621 accessible on a white background?
#fbe621 on white scores 1.28:1, which fails WCAG AA at every size. Darken it to #817502 to reach 4.5:1, or #635902 for 7:1.
What is the complementary color of #fbe621?
#2136FB sits directly opposite on the wheel. Softer options are the split-complements #21A3FB and #7921FB, which give the same contrast with far less vibration.
What colors go well with #fbe621?
For interface work: #FAFAF4 as the surface, #EDE8C0 for borders, #9B934B for secondary text, #1D6BFF as an accent and #7D7102 for hover and pressed states. For a palette, the analogous pair #FB7921 and #A3FB21 stays calm, while #2136FB is the loudest partner.
What is #fbe621 in CMYK for printing?
cmyk(0%, 8%, 87%, 2%). 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 #fbe621 warm or cool?
Warm — it scores 20 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #FBB021; nudged cooler, #C1FD1F.
Which Tailwind color is closest to #fbe621?
The yellow family — its 500 step is #eab308, ΔE2000 14.3 away. That is a visible difference, so define #fbe621 as a custom token rather than reaching for the built-in.
How do I use #fbe621 in Tailwind CSS?
Inline it as an arbitrary value with bg-[#fbe621] or text-[#fbe621], 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 #fbe621 with 50% opacity?
rgba(251, 230, 33, 0.5), or #fbe62180 in eight-digit hex. Over white that composites to #FDF390; over black, #7E7311.
Is #fbe621 a web-safe color?
No. The nearest web-safe colour is #FFFF33, ΔE2000 6.4 away. The palette only matters for legacy displays and some email clients now.
What does the color #fbe621 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 #fbe621?
The safest is same-hue elevation: linear-gradient(135deg, #FCED5D, #fbe621 45%, #7D7102). For more colour, a short hue run to #59F904 keeps it rich without turning muddy.
Work with #fbe621 in the Color Lab
Every tool opens with this colour already loaded.
Every value on this page is computed from #fbe621 at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.