#EFFF89#EFFF89

#EFFF89 is a very light, vivid yellow. Relative luminance 0.917; OKLCH L 96.4% C 0.144 H 115.5°. Best body text is #000000 at 19.34:1 contrast (WCAG AA passes).

Color values

HEX	#EFFF89
RGB	rgb(239, 255, 137)
HSL	hsl(68, 100%, 77%)
HSV	hsv(68, 46%, 100%)
CMYK	cmyk(6.3%, 0%, 46.3%, 0%)
CIE-LAB	lab(96.69, -21.90, 54.27)
CIE-LCH	lch(96.69, 58.53, 111.98°)
OKLab	oklab(96.38% -0.0619 0.1297)
OKLCH	oklch(96.38% 0.144 115.5)
XYZ	xyz(75.8729, 91.6778, 37.3607)
Luminance	0.9168 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFFF89 #9989FF

analogous

#FFD489 #EFFF89 #B4FF89

triadic

#EFFF89 #89EFFF #FF89EF

tetradic

#EFFF89 #89FFD4 #9989FF #FF89B4

square

#EFFF89 #89FFD4 #9989FF #FF89B4

split-complementary

#EFFF89 #89B4FF #D489FF

monochromatic

#DEFF0F #E7FF4C #EFFF89 #F7FFC6 #FBFFE0

Accessibility & contrast

On white

1.09

#EFFF89 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

19.34

#EFFF89 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFFF89

19.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFFF89	#FFFFFF	#000000	##000000
##EFFF89	1.00	1.09	19.34	19.34
#FFFFFF	1.09	1.00	21.00	21.00
#000000	19.34	21.00	1.00	1.00
##000000	19.34	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF57F

Deuteranopia (green-blind)

#FFF78F

Tritanopia (blue-blind)

#FBF3E3

Achromatopsia (no color)

#F5F5F5

Design tokens & code

CSS

--color: #efff89;
/* rgb */ color: rgb(239, 255, 137);
/* oklch */ color: oklch(96.4% 0.144 115.5);

Tailwind

colors: {
  custom: {
    50: '#f6ffae',
    500: '#efff89',
    950: '#000000',
  },
}

SCSS

$custom: #efff89;
$custom-light: #f6ffae;
$custom-dark: #000000;

JSON

{
  "hex": "#efff89",
  "rgb": {
    "r": 239,
    "g": 255,
    "b": 137
  },
  "hsl": {
    "h": 68.136,
    "s": 100,
    "l": 76.863
  },
  "oklch": {
    "l": 0.96382,
    "c": 0.14372,
    "h": 115.5
  },
  "luminance": 0.91677
}

Semantic roles & 50–950 ramp

primary

#EFFF89

secondary

#614DE0

accent

#00E61F

background

#FFFFFD

surface

#FFFFF7

border

#D7D7D0

text

#171810

muted

#858681

Preview Lab

Preview with #EFFF89

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

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