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#ceef1b

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

RGB
206, 239, 27
HSL
69°, 87%, 52%
CMYK
14, 0, 89, 6
Luminance
0.7493

Every format

HEX#ceef1b
RGBrgb(206, 239, 27)
HSLhsl(69, 87%, 52%)
CMYKcmyk(14%, 0%, 89%, 6%)
LABlab(89.4 -33.7 84.4)
LCHlch(89.4 90.9 111.8)
OKLCHoklch(0.897 0.207 119.4)

Copy-ready code

/* CSS */
color: #ceef1b;
background-color: #ceef1b;
/* Tailwind (arbitrary) */
class="text-[#ceef1b] bg-[#ceef1b]"
/* SCSS */
$brand: #ceef1b;
/* SwiftUI */
Color(red: 0.808, green: 0.937, blue: 0.106)
/* Android */
Color.parseColor("#ceef1b")

Accessibility — WCAG contrast

Aa
#ceef1b on white: 1.31:1
AA ✗ fail · AA-large · AAA
Aa
#ceef1b on black: 15.99:1
AA ✓ pass · AA-large · AAA
true color
protanopia
deuteranopia
tritanopia

RGB percentages

Red80.8%
Green93.7%
Blue10.6%

CMYK percentages

Cyan13.8%
Magenta0.0%
Yellow88.7%
Key (black)6.3%

Color previews

#ceef1b text on a black background

contrast 15.99:1

Card sample

#ceef1b text on a white background

contrast 1.31:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #ceef1b;
Background color
Panel with #ceef1b background
background-color: #ceef1b;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #ceef1b;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(206, 239, 27, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(206, 239, 27, 0.45);
Border & gradient
Gradient panel
border: 3px solid #ceef1b;
background: linear-gradient(135deg, #ceef1b, #41EF1B);

Monochromatic scale

Palettes built from #ceef1b

Shades — darker

Tints — lighter

Hue & tone neighbors

Color harmonies

Nearest named colors

Work with #ceef1b in the Color Lab