#EFFA05

#EFFA05

Color Values

HEX

#EFFA05

RGB

239, 250, 5

HSL

62.7, 96.1%, 50.0%

HSV

62.7, 98.0%, 98.0%

CMYK

4.4%, 0.0%, 98.0%, 2.0%

OKLCH

0.9449 0.2102 113.0

Properties

Cool Light Nearest: RAL 1016 Sulfur Yellow

Color Harmonies

Complementary

#EFFA05

#1005FA

Analogous

#FA8B05

#74FA05

#EFFA05

Triadic

#EFFA05

#05EFFA

#FA05EF

Split Complementary

#EFFA05

#0574FA

#8B05FA

Tetradic

#EFFA05

#05FA8B

#1005FA

#FA0574

Color Blindness Simulation

Original

#EFFA05

Protanopia

#F4F440

Deuteranopia

#F3F24E

Tritanopia

#F06F79

Achromatopsia

#E6E6E6

CSS Usage

background-color: #EFFA05;
color: #EFFA05;
border-color: #EFFA05;
Nearest Tailwind: Yellow 300 #FDE047

Tailwind Shades

50
#FDFEF1
100
#FAFCDF
200
#FBFEB9
300
#F7FD87
400
#F3FB46
500
#EFFA05
600
#BFC804
700
#99A003
800
#787D02
900
#575A07
950
#373904

Contrast Checker

Text on white

1.14:1

AA Fail AAA Fail

Text on black

18.35:1

AA Pass AAA Pass

Related Articles

Color Questions

What Is Pantone? The Universal Color Language

Feb 20, 2026
Color Questions

What Is Metamerism? Why Colors Look Different Under Different Lights

Feb 20, 2026
Color Questions

What Is Luminance? Brightness in Color Science

Feb 20, 2026