#EFD310

#EFD310

Color Values

HEX

#EFD310

RGB

239, 211, 16

HSL

52.5, 87.5%, 50.0%

HSV

52.5, 93.3%, 93.7%

CMYK

0.0%, 11.7%, 93.3%, 6.3%

OKLCH

0.8639 0.1773 99.4

Properties

Warm Light Nearest: RAL 1021 Rape Yellow

Color Harmonies

Complementary

#EFD310

#102CEF

Analogous

#EF6410

#9BEF10

#EFD310

Triadic

#EFD310

#10EFD3

#D310EF

Split Complementary

#EFD310

#109BEF

#6410EF

Tetradic

#EFD310

#10EF64

#102CEF

#EF109B

Color Blindness Simulation

Original

#EFD310

Protanopia

#E3E33F

Deuteranopia

#E4E74A

Tritanopia

#EE646D

Achromatopsia

#CBCBCB

CSS Usage

background-color: #EFD310;
color: #EFD310;
border-color: #EFD310;
Nearest Tailwind: Yellow 400 #FACC15

Tailwind Shades

50
#FDFCF2
100
#FAF7E0
200
#FBF3BC
300
#F7EA8C
400
#F3DF4E
500
#EFD310
600
#BFA90D
700
#99870A
800
#786A08
900
#574D0A
950
#373107

Contrast Checker

Text on white

1.5:1

AA Fail AAA Fail

Text on black

14.0:1

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