#EFEF78#EFEF78

#EFEF78 is a very light, vivid yellow. Relative luminance 0.814; OKLCH L 92.8% C 0.142 H 108.9°. Best body text is #000000 at 17.29:1 contrast (WCAG AA passes).

Color values

HEX	#EFEF78
RGB	rgb(239, 239, 120)
HSL	hsl(60, 79%, 70%)
HSV	hsv(60, 50%, 94%)
CMYK	cmyk(0%, 0%, 49.8%, 6.3%)
CIE-LAB	lab(92.33, -15.71, 56.91)
CIE-LCH	lch(92.33, 59.04, 105.43°)
OKLab	oklab(92.84% -0.0458 0.1341)
OKLCH	oklch(92.84% 0.142 108.9)
XYZ	xyz(69.8549, 81.4415, 29.8056)
Luminance	0.8144 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFEF78 #7878EF

analogous

#EFB378 #EFEF78 #B3EF78

triadic

#EFEF78 #78EFEF #EF78EF

tetradic

#EFEF78 #78EFB3 #7878EF #EF78B3

square

#EFEF78 #78EFB3 #7878EF #EF78B3

split-complementary

#EFEF78 #78B3EF #B378EF

monochromatic

#D4D419 #E9E941 #EFEF78 #F5F5AF #FCFCE4

Accessibility & contrast

On white

1.21

#EFEF78 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.29

#EFEF78 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFEF78

17.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFEF78	#FFFFFF	#000000	##000000
##EFEF78	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)

#FFE76D

Deuteranopia (green-blind)

#FFEB7E

Tritanopia (blue-blind)

#FDE2D4

Achromatopsia (no color)

#E9E9E9

Design tokens & code

CSS

--color: #efef78;
/* rgb */ color: rgb(239, 239, 120);
/* oklch */ color: oklch(92.8% 0.142 108.9);

Tailwind

colors: {
  custom: {
    50: '#f6f4a2',
    500: '#efef78',
    950: '#000000',
  },
}

SCSS

$custom: #efef78;
$custom-light: #f6f4a2;
$custom-dark: #000000;

JSON

{
  "hex": "#efef78",
  "rgb": {
    "r": 239,
    "g": 239,
    "b": 120
  },
  "hsl": {
    "h": 60,
    "s": 78.808,
    "l": 70.392
  },
  "oklch": {
    "l": 0.9284,
    "c": 0.14176,
    "h": 108.9
  },
  "luminance": 0.8144
}

Semantic roles & 50–950 ramp

primary

#EFEF78

secondary

#4343C9

accent

#0ADB0A

background

#FFFFFC

surface

#FFFEF6

border

#D7D6D0

text

#17170F

muted

#858580

Preview Lab

Preview with #EFEF78

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

Preview Lab → · Contrast checker → · Palette generator →