#EFFF84#EFFF84

#EFFF84 is a very light, vivid yellow. Relative luminance 0.915; OKLCH L 96.3% C 0.149 H 115.4°. Best body text is #000000 at 19.31:1 contrast (WCAG AA passes).

Color values

HEX	#EFFF84
RGB	rgb(239, 255, 132)
HSL	hsl(68, 100%, 76%)
HSV	hsv(68, 48%, 100%)
CMYK	cmyk(6.3%, 0%, 48.2%, 0%)
CIE-LAB	lab(96.63, -22.37, 56.52)
CIE-LCH	lch(96.63, 60.78, 111.59°)
OKLab	oklab(96.32% -0.0637 0.1343)
OKLCH	oklch(96.32% 0.149 115.4)
XYZ	xyz(75.5225, 91.5376, 35.5153)
Luminance	0.9154 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFFF84 #9484FF

analogous

#FFD184 #EFFF84 #B1FF84

triadic

#EFFF84 #84EFFF #FF84EF

tetradic

#EFFF84 #84FFD1 #9484FF #FF84B1

square

#EFFF84 #84FFD1 #9484FF #FF84B1

split-complementary

#EFFF84 #84B1FF #D184FF

monochromatic

#DFFF0A #E7FF47 #EFFF84 #F7FFC1 #FBFFE0

Accessibility & contrast

On white

1.09

#EFFF84 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

19.31

#EFFF84 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFFF84

19.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFFF84	#FFFFFF	#000000	##000000
##EFFF84	1.00	1.09	19.31	19.31
#FFFFFF	1.09	1.00	21.00	21.00
#000000	19.31	21.00	1.00	1.00
##000000	19.31	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF479

Deuteranopia (green-blind)

#FFF68B

Tritanopia (blue-blind)

#FBF3E3

Achromatopsia (no color)

#F5F5F5

Design tokens & code

CSS

--color: #efff84;
/* rgb */ color: rgb(239, 255, 132);
/* oklch */ color: oklch(96.3% 0.149 115.4);

Tailwind

colors: {
  custom: {
    50: '#f6ffaa',
    500: '#efff84',
    950: '#000000',
  },
}

SCSS

$custom: #efff84;
$custom-light: #f6ffaa;
$custom-dark: #000000;

JSON

{
  "hex": "#efff84",
  "rgb": {
    "r": 239,
    "g": 255,
    "b": 132
  },
  "hsl": {
    "h": 67.805,
    "s": 100,
    "l": 75.882
  },
  "oklch": {
    "l": 0.96317,
    "c": 0.14861,
    "h": 115.4
  },
  "luminance": 0.91537
}

Semantic roles & 50–950 ramp

primary

#EFFF84

secondary

#5C48DF

accent

#00E61E

background

#FFFFFD

surface

#FFFFF7

border

#D7D7D0

text

#171810

muted

#858681

Preview Lab

Preview with #EFFF84

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

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