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#f3f84d

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

RGB
243, 248, 77
HSL
62°, 92%, 64%
CMYK
2, 0, 69, 3
Luminance
0.8673

At a glance

Every number on this page in one read: what #f3f84d is made of, how bright it looks, and which way it leans.

Hex
#f3f84d
Hue
62°
yellow
Saturation
92%
electric
Lightness
64%
balanced
Brightness
97%
HSV value
Perceived
91%
weighted brightness
Luminance
0.8673
WCAG relative
Temperature
Warm
27/100 cool
Color family
Yellow
Tone
Electric
Best ink
Black
18.35:1
Closest name
Yellow
ΔE2000 4.2
Where it sits
Hue62° of 360°
Saturation92%
Lightness64%
Temperature
Warm ← → Cool27% cool

Reads warm. Warm and cool siblings keep the same lightness, so you can swap one in without redoing your contrast maths.

Every format

HEX#f3f84d
RGBrgb(243, 248, 77)
HSLhsl(62, 92%, 64%)
CMYKcmyk(2%, 0%, 69%, 3%)
LABlab(94.6 -21.3 77.1)
LCHlch(94.6 80.0 105.4)
OKLCHoklch(0.946 0.184 111.1)
Decimal15988813
Display P3color(display-p3 0.953 0.973 0.302)

Copy-ready code

/* CSS */
color: #f3f84d;
background-color: #f3f84d;
/* Tailwind (arbitrary) */
class="text-[#f3f84d] bg-[#f3f84d]"
/* SCSS */
$brand: #f3f84d;
/* SwiftUI */
Color(red: 0.953, green: 0.973, blue: 0.302)
/* Android */
Color.parseColor("#f3f84d")
/* Flutter */
Color(0xFFF3F84D)
/* Python / OpenCV (BGR) */
(77, 248, 243)

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 #f3f84d · 18.35:1
Use #000000AAA at every size.
Aa
White text · 1.14:1
AA fail · AA large fail · AAA fail
Aa
Black text · 18.35:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #f3f84d as text scores 1.14:1 on white and 18.35:1 on black.

Accessibility — WCAG contrast

Aa
#f3f84d on white: 1.14:1
AA ✗ fail · AA-large · AAA
Aa
#f3f84d on black: 18.35:1
AA ✓ pass · AA-large · AAA
true color
protanopia · #FFED30
deuteranopia · #FFF25A
tritanopia · #FFE9D6

Color scale — 50 to 950

A Tailwind-shaped ramp built around this exact hex. #f3f84d is pinned to step 400; the rest hold its hue and let saturation ease off at the extremes so the pale end never turns neon.

#FDFDF2
#FAFBE4
#F8F9C3
#F8FB93
#f3f84d
#F0F627
#E5EB09
#BFC408
#989D06
#6E7109
#454706
Base = 400Lightest = 50 · #FDFDF2Darkest = 950 · #454706
:root {
  --brand-50: #FDFDF2;
  --brand-100: #FAFBE4;
  --brand-200: #F8F9C3;
  --brand-300: #F8FB93;
  --brand-400: #f3f84d;
  --brand-500: #F0F627;
  --brand-600: #E5EB09;
  --brand-700: #BFC408;
  --brand-800: #989D06;
  --brand-900: #6E7109;
  --brand-950: #454706;
  --brand: #f3f84d;
  --brand-ink: #000000;
}

Colors that work with #f3f84d

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#EBEDC0
Hairlines and dividers
Muted text#999B4B
Captions on the surface
Accent#4970FC
Second voice, not a rival
Dark variant#777B05
Hover, pressed, headers
Light variant#FDFEE6
Selected rows, tints
Dark surface#242414
Dark-mode background
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

How to use #f3f84d

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
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

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#524DF8
Analogous left#F8A84D
Analogous right#9DF84D
Split-complement 1#4D9DF8
Split-complement 2#A84DF8
Triadic 1#4DF3F8
Triadic 2#F84DF3
Tetradic#4DF8A8

RGB percentages

Red95.3%
Green97.3%
Blue30.2%

CMYK percentages

Cyan2.0%
Magenta0.0%
Yellow69.0%
Key (black)2.7%

Color previews

#f3f84d text on a black background

contrast 18.35:1

Card sample

#f3f84d text on a white background

contrast 1.14:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #f3f84d;
Background color
Panel with #f3f84d background
background-color: #f3f84d;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #f3f84d;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(243, 248, 77, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(243, 248, 77, 0.45);
Border & gradient
Gradient panel
border: 3px solid #f3f84d;
background: linear-gradient(135deg, #f3f84d, #81F84D);

Monochromatic scale

Palettes built from #f3f84d

Shades — darker

Tints — lighter

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.

#f3f84d 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.

#f3f84d, answered

What color is #f3f84d?

#f3f84d is a balanced electric yellow, closest to Yellow (ΔE2000 4.2). It sits at 62° on the hue wheel with 92% saturation and 64% lightness, which reads as warm.

What is the RGB value of #f3f84d?

rgb(243, 248, 77) — 243 red, 248 green and 77 blue out of 255, or 95.3% / 97.3% / 30.2% by channel.

Is #f3f84d a light or a dark color?

It is a light color. Relative luminance is 0.8673 and perceived brightness is 91%, so black text on it reaches 18.35:1.

Should I use black or white text on #f3f84d?

Black. It scores 18.35:1 against #f3f84d, versus 1.14:1 for white — AAA at any size.

What is the complementary color of #f3f84d?

#524DF8 sits directly opposite on the wheel. Softer options are the split-complements #4D9DF8 and #A84DF8, which give the same contrast with far less vibration.

What colors go well with #f3f84d?

For interface work: #FAFAF4 as the surface, #EBEDC0 for borders, #999B4B for secondary text, #4970FC as an accent and #777B05 for hover and pressed states. For a palette, the analogous pair #F8A84D and #9DF84D stays calm, while #524DF8 is the loudest partner.

What is #f3f84d in CMYK for printing?

cmyk(2%, 0%, 69%, 3%). 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 #f3f84d warm or cool?

Warm — it scores 27 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #F8C14D; nudged cooler, #B4FA4B.

Work with #f3f84d in the Color Lab