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#ecff4b

a balanced, electric yellow · cool · closest name: yellow

RGB
236, 255, 75
HSL
66°, 100%, 65%
CMYK
8, 0, 71, 0
Luminance
0.8986

Every format

HEX#ecff4b
RGBrgb(236, 255, 75)
HSLhsl(66, 100%, 65%)
CMYKcmyk(8%, 0%, 71%, 0%)
LABlab(95.9 -27.5 78.9)
LCHlch(95.9 83.5 109.2)
OKLCHoklch(0.956 0.194 115.4)

Copy-ready code

/* CSS */
color: #ecff4b;
background-color: #ecff4b;
/* Tailwind (arbitrary) */
class="text-[#ecff4b] bg-[#ecff4b]"
/* SCSS */
$brand: #ecff4b;
/* SwiftUI */
Color(red: 0.925, green: 1.000, blue: 0.294)
/* Android */
Color.parseColor("#ecff4b")

Accessibility — WCAG contrast

Aa
#ecff4b on white: 1.11:1
AA ✗ fail · AA-large · AAA
Aa
#ecff4b on black: 18.97:1
AA ✓ pass · AA-large · AAA
true color
protanopia
deuteranopia
tritanopia

RGB percentages

Red92.5%
Green100.0%
Blue29.4%

CMYK percentages

Cyan7.5%
Magenta0.0%
Yellow70.6%
Key (black)0.0%

Color previews

#ecff4b text on a black background

contrast 18.97:1

Card sample

#ecff4b text on a white background

contrast 1.11:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #ecff4b;
Background color
Panel with #ecff4b background
background-color: #ecff4b;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #ecff4b;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(236, 255, 75, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(236, 255, 75, 0.45);
Border & gradient
Gradient panel
border: 3px solid #ecff4b;
background: linear-gradient(135deg, #ecff4b, #74FF4B);

Monochromatic scale

Palettes built from #ecff4b

Shades — darker

Tints — lighter

Hue & tone neighbors

Color harmonies

Nearest named colors

Work with #ecff4b in the Color Lab