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#ecf021

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

RGB
236, 240, 33
HSL
61°, 87%, 54%
CMYK
2, 0, 86, 6
Luminance
0.8026

Every format

HEX#ecf021
RGBrgb(236, 240, 33)
HSLhsl(61, 87%, 54%)
CMYKcmyk(2%, 0%, 86%, 6%)
LABlab(91.8 -21.8 86.3)
LCHlch(91.8 89.0 104.2)
OKLCHoklch(0.922 0.197 111.0)

Copy-ready code

/* CSS */
color: #ecf021;
background-color: #ecf021;
/* Tailwind (arbitrary) */
class="text-[#ecf021] bg-[#ecf021]"
/* SCSS */
$brand: #ecf021;
/* SwiftUI */
Color(red: 0.925, green: 0.941, blue: 0.129)
/* Android */
Color.parseColor("#ecf021")

Accessibility — WCAG contrast

Aa
#ecf021 on white: 1.23:1
AA ✗ fail · AA-large · AAA
Aa
#ecf021 on black: 17.05:1
AA ✓ pass · AA-large · AAA
true color
protanopia
deuteranopia
tritanopia

RGB percentages

Red92.5%
Green94.1%
Blue12.9%

CMYK percentages

Cyan1.7%
Magenta0.0%
Yellow86.3%
Key (black)5.9%

Color previews

#ecf021 text on a black background

contrast 17.05:1

Card sample

#ecf021 text on a white background

contrast 1.23:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #ecf021;
Background color
Panel with #ecf021 background
background-color: #ecf021;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #ecf021;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(236, 240, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(236, 240, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #ecf021;
background: linear-gradient(135deg, #ecf021, #62F021);

Monochromatic scale

Palettes built from #ecf021

Shades — darker

Tints — lighter

Hue & tone neighbors

Color harmonies

Nearest named colors

Work with #ecf021 in the Color Lab