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#ddfd2b

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

RGB
221, 253, 43
HSL
69°, 98%, 58%
CMYK
13, 0, 83, 1
Luminance
0.8580

At a glance

Every number on this page in one read: what #ddfd2b is made of, how bright it looks, and which way it leans.

Hex
#ddfd2b
Hue
69°
yellow
Saturation
98%
electric
Lightness
58%
balanced
Brightness
99%
HSV value
Perceived
90%
weighted brightness
Luminance
0.8580
WCAG relative
Temperature
Warm
33/100 cool
Color family
Yellow
Tone
Electric
Best ink
Black
18.16:1
Closest name
Yellow
ΔE2000 6.8
Where it sits
Hue69° of 360°
Saturation98%
Lightness58%
Temperature
Warm ← → Cool33% 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#ddfd2b
RGBrgb(221, 253, 43)
HSLhsl(69, 98%, 58%)
CMYKcmyk(13%, 0%, 83%, 1%)
LABlab(94.2 -33.7 85.8)
LCHlch(94.2 92.2 111.5)
OKLCHoklch(0.939 0.211 118.8)
Decimal14548267
Display P3color(display-p3 0.867 0.992 0.169)

Copy-ready code

/* CSS */
color: #ddfd2b;
background-color: #ddfd2b;
/* Tailwind (arbitrary) */
class="text-[#ddfd2b] bg-[#ddfd2b]"
/* SCSS */
$brand: #ddfd2b;
/* SwiftUI */
Color(red: 0.867, green: 0.992, blue: 0.169)
/* Android */
Color.parseColor("#ddfd2b")
/* Flutter */
Color(0xFFDDFD2B)
/* Python / OpenCV (BGR) */
(43, 253, 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 #ddfd2b · 18.16:1
Use #000000AAA at every size.
Aa
White text · 1.16:1
AA fail · AA large fail · AAA fail
Aa
Black text · 18.16:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #ddfd2b as text scores 1.16:1 on white and 18.16:1 on black.

Accessibility — WCAG contrast

Aa
#ddfd2b on white: 1.16:1
AA ✗ fail · AA-large · AAA
Aa
#ddfd2b on black: 18.16:1
AA ✓ pass · AA-large · AAA
true color
protanopia · #FFEE00
deuteranopia · #FFEF44
tritanopia · #EBEFD8

Color scale — 50 to 950

A Tailwind-shaped ramp built around this exact hex. #ddfd2b 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.

#FCFDF1
#F8FCE3
#F2FBC1
#EDFE90
#E4FD58
#ddfd2b
#CEF202
#ACCA02
#89A202
#647406
#3E4904
Base = 500Lightest = 50 · #FCFDF1Darkest = 950 · #3E4904
:root {
  --brand-50: #FCFDF1;
  --brand-100: #F8FCE3;
  --brand-200: #F2FBC1;
  --brand-300: #EDFE90;
  --brand-400: #E4FD58;
  --brand-500: #ddfd2b;
  --brand-600: #CEF202;
  --brand-700: #ACCA02;
  --brand-800: #89A202;
  --brand-900: #647406;
  --brand-950: #3E4904;
  --brand: #ddfd2b;
  --brand-ink: #000000;
}

Colors that work with #ddfd2b

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#E6EDC0
Hairlines and dividers
Muted text#8F9B4B
Captions on the surface
Accent#293EFF
Second voice, not a rival
Dark variant#6B7E01
Hover, pressed, headers
Light variant#FBFFE6
Selected rows, tints
Dark surface#222414
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 #ddfd2b

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#4B2BFD
Analogous left#FDB42B
Analogous right#74FD2B
Split-complement 1#2B74FD
Split-complement 2#B42BFD
Triadic 1#2BDDFD
Triadic 2#FD2BDD
Tetradic#2BFDB4

RGB percentages

Red86.7%
Green99.2%
Blue16.9%

CMYK percentages

Cyan12.6%
Magenta0.0%
Yellow83.0%
Key (black)0.8%

Color previews

#ddfd2b text on a black background

contrast 18.16:1

Card sample

#ddfd2b text on a white background

contrast 1.16:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #ddfd2b;
Background color
Panel with #ddfd2b background
background-color: #ddfd2b;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #ddfd2b;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(221, 253, 43, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(221, 253, 43, 0.45);
Border & gradient
Gradient panel
border: 3px solid #ddfd2b;
background: linear-gradient(135deg, #ddfd2b, #51FD2B);

Monochromatic scale

Palettes built from #ddfd2b

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.

#ddfd2b 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.

#ddfd2b, answered

What color is #ddfd2b?

#ddfd2b is a balanced electric yellow, closest to Yellow (ΔE2000 6.8). It sits at 69° on the hue wheel with 98% saturation and 58% lightness, which reads as warm.

What is the RGB value of #ddfd2b?

rgb(221, 253, 43) — 221 red, 253 green and 43 blue out of 255, or 86.7% / 99.2% / 16.9% by channel.

Is #ddfd2b a light or a dark color?

It is a light color. Relative luminance is 0.8580 and perceived brightness is 90%, so black text on it reaches 18.16:1.

Should I use black or white text on #ddfd2b?

Black. It scores 18.16:1 against #ddfd2b, versus 1.16:1 for white — AAA at any size.

What is the complementary color of #ddfd2b?

#4B2BFD sits directly opposite on the wheel. Softer options are the split-complements #2B74FD and #B42BFD, which give the same contrast with far less vibration.

What colors go well with #ddfd2b?

For interface work: #F9FAF4 as the surface, #E6EDC0 for borders, #8F9B4B for secondary text, #293EFF as an accent and #6B7E01 for hover and pressed states. For a palette, the analogous pair #FDB42B and #74FD2B stays calm, while #4B2BFD is the loudest partner.

What is #ddfd2b in CMYK for printing?

cmyk(13%, 0%, 83%, 1%). 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 #ddfd2b warm or cool?

Warm — it scores 33 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #FDD02B; nudged cooler, #90FF29.

Work with #ddfd2b in the Color Lab