#EFEF79#EFEF79

#EFEF79 is a very light, vivid yellow. Relative luminance 0.815; OKLCH L 92.9% C 0.141 H 108.9°. Best body text is #000000 at 17.29:1 contrast (WCAG AA passes).

Color values

HEX	#EFEF79
RGB	rgb(239, 239, 121)
HSL	hsl(60, 79%, 71%)
HSV	hsv(60, 49%, 94%)
CMYK	cmyk(0%, 0%, 49.4%, 6.3%)
CIE-LAB	lab(92.34, -15.62, 56.47)
CIE-LCH	lch(92.34, 58.59, 105.47°)
OKLab	oklab(92.85% -0.0455 0.1333)
OKLCH	oklch(92.85% 0.141 108.9)
XYZ	xyz(69.9159, 81.4659, 30.1269)
Luminance	0.8146 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFEF79 #7979EF

analogous

#EFB479 #EFEF79 #B4EF79

triadic

#EFEF79 #79EFEF #EF79EF

tetradic

#EFEF79 #79EFB4 #7979EF #EF79B4

square

#EFEF79 #79EFB4 #7979EF #EF79B4

split-complementary

#EFEF79 #79B4EF #B479EF

monochromatic

#D4D419 #E8E842 #EFEF79 #F6F6B0 #FCFCE4

Accessibility & contrast

On white

1.21

#EFEF79 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.29

#EFEF79 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFEF79

17.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFEF79	#FFFFFF	#000000	##000000
##EFEF79	1.00	1.21	17.29	17.29
#FFFFFF	1.21	1.00	21.00	21.00
#000000	17.29	21.00	1.00	1.00
##000000	17.29	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE76E

Deuteranopia (green-blind)

#FFEB7F

Tritanopia (blue-blind)

#FDE2D4

Achromatopsia (no color)

#E9E9E9

Design tokens & code

CSS

--color: #efef79;
/* rgb */ color: rgb(239, 239, 121);
/* oklch */ color: oklch(92.9% 0.141 108.9);

Tailwind

colors: {
  custom: {
    50: '#f6f4a2',
    500: '#efef79',
    950: '#000000',
  },
}

SCSS

$custom: #efef79;
$custom-light: #f6f4a2;
$custom-dark: #000000;

JSON

{
  "hex": "#efef79",
  "rgb": {
    "r": 239,
    "g": 239,
    "b": 121
  },
  "hsl": {
    "h": 60,
    "s": 78.667,
    "l": 70.588
  },
  "oklch": {
    "l": 0.92853,
    "c": 0.14082,
    "h": 108.9
  },
  "luminance": 0.81464
}

Semantic roles & 50–950 ramp

primary

#EFEF79

secondary

#4444C9

accent

#0BDB0B

background

#FFFFFC

surface

#FFFEF6

border

#D7D6D0

text

#17170F

muted

#858580

Preview Lab

Preview with #EFEF79

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →