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#f3ffcc

a pale, electric green · warm · closest name: Light Goldenrod Yellow

RGB
243, 255, 204
HSL
74°, 100%, 90%
CMYK
5, 0, 20, 0
Luminance
0.9493

At a glance

Every number on this page in one read: what #f3ffcc is made of, how bright it looks, and which way it leans.

Hex
#f3ffcc
Hue
74°
green
Saturation
100%
electric
Lightness
90%
pale
Brightness
100%
HSV value
Perceived
97%
weighted brightness
Luminance
0.9493
WCAG relative
Temperature
Warm
37/100 cool
Color family
Green
Tone
Electric
Best ink
Black
19.99:1
Closest name
Light Goldenrod Yellow
ΔE2000 4.5
Where it sits
Hue74° of 360°
Saturation100%
Lightness90%
Temperature
Warm ← → Cool37% 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#f3ffcc
RGBrgb(243, 255, 204)
HSLhsl(74, 100%, 90%)
CMYKcmyk(5%, 0%, 20%, 0%)
LABlab(98.0 -12.3 23.1)
LCHlch(98.0 26.2 118.1)
OKLCHoklch(0.978 0.067 118.4)
Decimal15990732
Display P3color(display-p3 0.953 1.000 0.800)

Copy-ready code

/* CSS */
color: #f3ffcc;
background-color: #f3ffcc;
/* Tailwind (arbitrary) */
class="text-[#f3ffcc] bg-[#f3ffcc]"
/* SCSS */
$brand: #f3ffcc;
/* SwiftUI */
Color(red: 0.953, green: 1.000, blue: 0.800)
/* Android */
Color.parseColor("#f3ffcc")
/* Flutter */
Color(0xFFF3FFCC)
/* Python / OpenCV (BGR) */
(204, 255, 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 #f3ffcc · 19.99:1
Use #000000AAA at every size.
Aa
White text · 1.05:1
AA fail · AA large fail · AAA fail
Aa
Black text · 19.99:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #f3ffcc as text scores 1.05:1 on white and 19.99:1 on black.

Accessibility — WCAG contrast

Aa
#f3ffcc on white: 1.05:1
AA ✗ fail · AA-large · AAA
Aa
#f3ffcc on black: 19.99:1
AA ✓ pass · AA-large · AAA
true color
protanopia · #FFF9C9
deuteranopia · #FFFACE
tritanopia · #F8F9F1

Color scale — 50 to 950

A Tailwind-shaped ramp built around this exact hex. #f3ffcc is pinned to step 200; the rest hold its hue and let saturation ease off at the extremes so the pale end never turns neon.

#FBFEF1
#F6FCE3
#f3ffcc
#E5FF8F
#D7FF57
#CAFF1F
#BBF500
#9CCC00
#7DA300
#5B7605
#394903
Base = 200Lightest = 50 · #FBFEF1Darkest = 950 · #394903
:root {
  --brand-50: #FBFEF1;
  --brand-100: #F6FCE3;
  --brand-200: #f3ffcc;
  --brand-300: #E5FF8F;
  --brand-400: #D7FF57;
  --brand-500: #CAFF1F;
  --brand-600: #BBF500;
  --brand-700: #9CCC00;
  --brand-800: #7DA300;
  --brand-900: #5B7605;
  --brand-950: #394903;
  --brand: #f3ffcc;
  --brand-ink: #000000;
}

Colors that work with #f3ffcc

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#F9FAF4
Tinted page background
Border#E2EDC0
Hairlines and dividers
Muted text#889B4B
Captions on the surface
Accent#0004CC
Second voice, not a rival
Dark variant#628000
Hover, pressed, headers
Light variant#F9FFE5
Selected rows, tints
Dark surface#212414
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 #f3ffcc

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
  • Card and section backgrounds
  • 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
  • White text placed on it
  • 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#D8CCFF
Analogous left#FFF1CC
Analogous right#DAFFCC
Split-complement 1#CCDAFF
Split-complement 2#F1CCFF
Triadic 1#CCF3FF
Triadic 2#FFCCF3
Tetradic#CCFFF1

RGB percentages

Red95.3%
Green100.0%
Blue80.0%

CMYK percentages

Cyan4.7%
Magenta0.0%
Yellow20.0%
Key (black)0.0%

Color previews

#f3ffcc text on a black background

contrast 19.99:1

Card sample

#f3ffcc text on a white background

contrast 1.05:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #f3ffcc;
Background color
Panel with #f3ffcc background
background-color: #f3ffcc;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #f3ffcc;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(243, 255, 204, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(243, 255, 204, 0.45);
Border & gradient
Gradient panel
border: 3px solid #f3ffcc;
background: linear-gradient(135deg, #f3ffcc, #D1FFCC);

Monochromatic scale

Palettes built from #f3ffcc

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.

#f3ffcc in the real world

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

Industries
SustainabilityFinanceHealth and wellnessAgriculture
Common UI roles
SurfacesBadgesHighlightsEmpty states
Print note

Sits outside most CMYK gamuts — expect a duller press result, or specify a spot ink.

#f3ffcc, answered

What color is #f3ffcc?

#f3ffcc is a pale electric green, closest to Light Goldenrod Yellow (ΔE2000 4.5). It sits at 74° on the hue wheel with 100% saturation and 90% lightness, which reads as warm.

What is the RGB value of #f3ffcc?

rgb(243, 255, 204) — 243 red, 255 green and 204 blue out of 255, or 95.3% / 100% / 80% by channel.

Is #f3ffcc a light or a dark color?

It is a light color. Relative luminance is 0.9493 and perceived brightness is 97%, so black text on it reaches 19.99:1.

Should I use black or white text on #f3ffcc?

Black. It scores 19.99:1 against #f3ffcc, versus 1.05:1 for white — AAA at any size.

What is the complementary color of #f3ffcc?

#D8CCFF sits directly opposite on the wheel. Softer options are the split-complements #CCDAFF and #F1CCFF, which give the same contrast with far less vibration.

What colors go well with #f3ffcc?

For interface work: #F9FAF4 as the surface, #E2EDC0 for borders, #889B4B for secondary text, #0004CC as an accent and #628000 for hover and pressed states. For a palette, the analogous pair #FFF1CC and #DAFFCC stays calm, while #D8CCFF is the loudest partner.

What is #f3ffcc in CMYK for printing?

cmyk(5%, 0%, 20%, 0%). 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 #f3ffcc warm or cool?

Warm — it scores 37 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #FFF8CC; nudged cooler, #E0FFCC.

Work with #f3ffcc in the Color Lab