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#ddfe4b

a balanced, electric green · warm · closest name: Green Yellow

RGB
221, 254, 75
HSL
71°, 99%, 65%
CMYK
13, 0, 71, 0
Luminance
0.8676

At a glance

Every number on this page in one read: what #ddfe4b is made of, how bright it looks, and which way it leans.

Hex
#ddfe4b
Hue
71°
green
Saturation
99%
electric
Lightness
65%
balanced
Brightness
100%
HSV value
Perceived
90%
weighted brightness
Luminance
0.8676
WCAG relative
Temperature
Warm
34/100 cool
Color family
Green
Tone
Electric
Best ink
Black
18.35:1
Closest name
Green Yellow
ΔE2000 6.9
Where it sits
Hue71° of 360°
Saturation99%
Lightness65%
Temperature
Warm ← → Cool34% 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#ddfe4b
RGBrgb(221, 254, 75)
HSLhsl(71, 99%, 65%)
CMYKcmyk(13%, 0%, 71%, 0%)
LABlab(94.6 -32.9 77.3)
LCHlch(94.6 84.0 113.1)
OKLCHoklch(0.943 0.198 119.5)
Decimal14548555
Display P3color(display-p3 0.867 0.996 0.294)

Copy-ready code

/* CSS */
color: #ddfe4b;
background-color: #ddfe4b;
/* Tailwind (arbitrary) */
class="text-[#ddfe4b] bg-[#ddfe4b]"
/* SCSS */
$brand: #ddfe4b;
/* SwiftUI */
Color(red: 0.867, green: 0.996, blue: 0.294)
/* Android */
Color.parseColor("#ddfe4b")
/* Flutter */
Color(0xFFDDFE4B)
/* Python / OpenCV (BGR) */
(75, 254, 221)

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 #ddfe4b · 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: #ddfe4b as text scores 1.14:1 on white and 18.35:1 on black.

Accessibility — WCAG contrast

Aa
#ddfe4b on white: 1.14:1
AA ✗ fail · AA-large · AAA
Aa
#ddfe4b on black: 18.35:1
AA ✓ pass · AA-large · AAA
true color
protanopia · #FFF02A
deuteranopia · #FFF05A
tritanopia · #EAF1DB

Color scale — 50 to 950

A Tailwind-shaped ramp built around this exact hex. #ddfe4b 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.

#FBFEF1
#F7FCE3
#F0FBC0
#EAFE8F
#ddfe4b
#D5FE20
#C7F301
#A6CB01
#84A201
#607506
#3C4903
Base = 400Lightest = 50 · #FBFEF1Darkest = 950 · #3C4903
:root {
  --brand-50: #FBFEF1;
  --brand-100: #F7FCE3;
  --brand-200: #F0FBC0;
  --brand-300: #EAFE8F;
  --brand-400: #ddfe4b;
  --brand-500: #D5FE20;
  --brand-600: #C7F301;
  --brand-700: #A6CB01;
  --brand-800: #84A201;
  --brand-900: #607506;
  --brand-950: #3C4903;
  --brand: #ddfe4b;
  --brand-ink: #000000;
}

Colors that work with #ddfe4b

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#E4EDC0
Hairlines and dividers
Muted text#8C9B4B
Captions on the surface
Accent#4A56FF
Second voice, not a rival
Dark variant#677F01
Hover, pressed, headers
Light variant#FAFFE6
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 #ddfe4b

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
  • 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#6C4BFE
Analogous left#FEC64B
Analogous right#83FE4B
Split-complement 1#4B83FE
Split-complement 2#C64BFE
Triadic 1#4BDDFE
Triadic 2#FE4BDD
Tetradic#4BFEC6

RGB percentages

Red86.7%
Green99.6%
Blue29.4%

CMYK percentages

Cyan13.0%
Magenta0.0%
Yellow70.5%
Key (black)0.4%

Color previews

#ddfe4b text on a black background

contrast 18.35:1

Card sample

#ddfe4b text on a white background

contrast 1.14:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #ddfe4b;
Background color
Panel with #ddfe4b background
background-color: #ddfe4b;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #ddfe4b;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(221, 254, 75, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(221, 254, 75, 0.45);
Border & gradient
Gradient panel
border: 3px solid #ddfe4b;
background: linear-gradient(135deg, #ddfe4b, #66FE4B);

Monochromatic scale

Palettes built from #ddfe4b

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.

#ddfe4b 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
ButtonsLinksFocus statesCharts
Print note

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

#ddfe4b, answered

What color is #ddfe4b?

#ddfe4b is a balanced electric green, closest to Green Yellow (ΔE2000 6.9). It sits at 71° on the hue wheel with 99% saturation and 65% lightness, which reads as warm.

What is the RGB value of #ddfe4b?

rgb(221, 254, 75) — 221 red, 254 green and 75 blue out of 255, or 86.7% / 99.6% / 29.4% by channel.

Is #ddfe4b a light or a dark color?

It is a light color. Relative luminance is 0.8676 and perceived brightness is 90%, so black text on it reaches 18.35:1.

Should I use black or white text on #ddfe4b?

Black. It scores 18.35:1 against #ddfe4b, versus 1.14:1 for white — AAA at any size.

What is the complementary color of #ddfe4b?

#6C4BFE sits directly opposite on the wheel. Softer options are the split-complements #4B83FE and #C64BFE, which give the same contrast with far less vibration.

What colors go well with #ddfe4b?

For interface work: #F9FAF4 as the surface, #E4EDC0 for borders, #8C9B4B for secondary text, #4A56FF as an accent and #677F01 for hover and pressed states. For a palette, the analogous pair #FEC64B and #83FE4B stays calm, while #6C4BFE is the loudest partner.

What is #ddfe4b in CMYK for printing?

cmyk(13%, 0%, 71%, 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 #ddfe4b warm or cool?

Warm — it scores 34 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #FEDD4B; nudged cooler, #9BFF4A.

Work with #ddfe4b in the Color Lab