#EFFFB9#EFFFB9

#EFFFB9 is a very light, moderate yellow-green. Relative luminance 0.934; OKLCH L 97.2% C 0.091 H 118.6°. Best body text is #000000 at 19.67:1 contrast (WCAG AA passes).

Color values

HEX	#EFFFB9
RGB	rgb(239, 255, 185)
HSL	hsl(74, 100%, 86%)
HSV	hsv(74, 27%, 100%)
CMYK	cmyk(6.3%, 0%, 27.5%, 0%)
CIE-LAB	lab(97.38, -16.40, 31.79)
CIE-LCH	lch(97.38, 35.77, 117.28°)
OKLab	oklab(97.16% -0.0436 0.0799)
OKLCH	oklch(97.16% 0.091 118.6)
XYZ	xyz(80.1130, 93.3738, 59.6920)
Luminance	0.9337 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFFFB9 #C9B9FF

analogous

#FFECB9 #EFFFB9 #CCFFB9

triadic

#EFFFB9 #B9EFFF #FFB9EF

tetradic

#EFFFB9 #B9FFEC #C9B9FF #FFB9CC

square

#EFFFB9 #B9FFEC #C9B9FF #FFB9CC

split-complementary

#EFFFB9 #B9CCFF #ECB9FF

monochromatic

#D3FF3F #E1FF7C #EFFFB9 #F8FFE0 #F8FFE0

Accessibility & contrast

On white

1.07

#EFFFB9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

19.67

#EFFFB9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFFFB9

19.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFFFB9	#FFFFFF	#000000	##000000
##EFFFB9	1.00	1.07	19.67	19.67
#FFFFFF	1.07	1.00	21.00	21.00
#000000	19.67	21.00	1.00	1.00
##000000	19.67	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF7B4

Deuteranopia (green-blind)

#FFF8BC

Tritanopia (blue-blind)

#F6F8ED

Achromatopsia (no color)

#F7F7F7

Design tokens & code

CSS

--color: #efffb9;
/* rgb */ color: rgb(239, 255, 185);
/* oklch */ color: oklch(97.2% 0.091 118.6);

Tailwind

colors: {
  custom: {
    50: '#f5ffce',
    500: '#efffb9',
    950: '#000000',
  },
}

SCSS

$custom: #efffb9;
$custom-light: #f5ffce;
$custom-dark: #000000;

JSON

{
  "hex": "#efffb9",
  "rgb": {
    "r": 239,
    "g": 255,
    "b": 185
  },
  "hsl": {
    "h": 73.714,
    "s": 100,
    "l": 86.275
  },
  "oklch": {
    "l": 0.97158,
    "c": 0.09105,
    "h": 118.6
  },
  "luminance": 0.93374
}

Semantic roles & 50–950 ramp

primary

#EFFFB9

secondary

#8F75E7

accent

#00E634

background

#FFFFFE

surface

#FEFFFB

border

#D6D7D4

text

#171813

muted

#858683

Preview Lab

Preview with #EFFFB9

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

Preview Lab → · Contrast checker → · Palette generator →