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#cfed2d

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

RGB
207, 237, 45
HSL
69°, 84%, 55%
CMYK
13, 0, 81, 7
Luminance
0.7402

At a glance

Every number on this page in one read: what #cfed2d is made of, how bright it looks, and which way it leans.

Hex
#cfed2d
Hue
69°
yellow
Saturation
84%
electric
Lightness
55%
balanced
Brightness
93%
HSV value
Perceived
84%
weighted brightness
Luminance
0.7402
WCAG relative
Temperature
Warm
33/100 cool
Color family
Yellow
Tone
Electric
Best ink
Black
15.80:1
Closest name
Green Yellow
ΔE2000 7.8
Where it sits
Hue69° of 360°
Saturation84%
Lightness55%
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#cfed2d
RGBrgb(207, 237, 45)
HSLhsl(69, 84%, 55%)
CMYKcmyk(13%, 0%, 81%, 7%)
LABlab(88.9 -31.9 80.5)
LCHlch(88.9 86.6 111.6)
OKLCHoklch(0.894 0.199 118.9)
Decimal13626669
Display P3color(display-p3 0.812 0.929 0.176)

Copy-ready code

/* CSS */
color: #cfed2d;
background-color: #cfed2d;
/* Tailwind (arbitrary) */
class="text-[#cfed2d] bg-[#cfed2d]"
/* SCSS */
$brand: #cfed2d;
/* SwiftUI */
Color(red: 0.812, green: 0.929, blue: 0.176)
/* Android */
Color.parseColor("#cfed2d")
/* Flutter */
Color(0xFFCFED2D)
/* Python / OpenCV (BGR) */
(45, 237, 207)

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 #cfed2d · 15.80:1
Use #000000AAA at every size.
Aa
White text · 1.33:1
AA fail · AA large fail · AAA fail
Aa
Black text · 15.80:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #cfed2d as text scores 1.33:1 on white and 15.80:1 on black.

Accessibility — WCAG contrast

Aa
#cfed2d on white: 1.33:1
AA ✗ fail · AA-large · AAA
Aa
#cfed2d on black: 15.80:1
AA ✓ pass · AA-large · AAA
true color
protanopia · #FDDF00
deuteranopia · #FAE042
tritanopia · #DCE0CB

Color scale — 50 to 950

A Tailwind-shaped ramp built around this exact hex. #cfed2d 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.

#FBFCF2
#F7FAE6
#EFF6C5
#E7F698
#DCF264
#cfed2d
#C1E113
#A1BC10
#81960D
#5E6D0E
#3B4409
Base = 500Lightest = 50 · #FBFCF2Darkest = 950 · #3B4409
:root {
  --brand-50: #FBFCF2;
  --brand-100: #F7FAE6;
  --brand-200: #EFF6C5;
  --brand-300: #E7F698;
  --brand-400: #DCF264;
  --brand-500: #cfed2d;
  --brand-600: #C1E113;
  --brand-700: #A1BC10;
  --brand-800: #81960D;
  --brand-900: #5E6D0E;
  --brand-950: #3B4409;
  --brand: #cfed2d;
  --brand-ink: #000000;
}

Colors that work with #cfed2d

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#8E9B4B
Captions on the surface
Accent#283BF2
Second voice, not a rival
Dark variant#65750A
Hover, pressed, headers
Light variant#FAFDE8
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 #cfed2d

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#4B2DED
Analogous left#EDAB2D
Analogous right#6FED2D
Split-complement 1#2D6FED
Split-complement 2#AB2DED
Triadic 1#2DCFED
Triadic 2#ED2DCF
Tetradic#2DEDAB

RGB percentages

Red81.2%
Green92.9%
Blue17.6%

CMYK percentages

Cyan12.7%
Magenta0.0%
Yellow81.0%
Key (black)7.1%

Color previews

#cfed2d text on a black background

contrast 15.80:1

Card sample

#cfed2d text on a white background

contrast 1.33:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #cfed2d;
Background color
Panel with #cfed2d background
background-color: #cfed2d;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #cfed2d;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(207, 237, 45, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(207, 237, 45, 0.45);
Border & gradient
Gradient panel
border: 3px solid #cfed2d;
background: linear-gradient(135deg, #cfed2d, #4FED2D);

Monochromatic scale

Palettes built from #cfed2d

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.

#cfed2d 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.

#cfed2d, answered

What color is #cfed2d?

#cfed2d is a balanced electric yellow, closest to Green Yellow (ΔE2000 7.8). It sits at 69° on the hue wheel with 84% saturation and 55% lightness, which reads as warm.

What is the RGB value of #cfed2d?

rgb(207, 237, 45) — 207 red, 237 green and 45 blue out of 255, or 81.2% / 92.9% / 17.6% by channel.

Is #cfed2d a light or a dark color?

It is a light color. Relative luminance is 0.7402 and perceived brightness is 84%, so black text on it reaches 15.80:1.

Should I use black or white text on #cfed2d?

Black. It scores 15.80:1 against #cfed2d, versus 1.33:1 for white — AAA at any size.

What is the complementary color of #cfed2d?

#4B2DED sits directly opposite on the wheel. Softer options are the split-complements #2D6FED and #AB2DED, which give the same contrast with far less vibration.

What colors go well with #cfed2d?

For interface work: #F9FAF4 as the surface, #E6EDC0 for borders, #8E9B4B for secondary text, #283BF2 as an accent and #65750A for hover and pressed states. For a palette, the analogous pair #EDAB2D and #6FED2D stays calm, while #4B2DED is the loudest partner.

What is #cfed2d in CMYK for printing?

cmyk(13%, 0%, 81%, 7%). 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 #cfed2d 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 #EDC52D; nudged cooler, #88EF2B.

Work with #cfed2d in the Color Lab