#EFFBC9#EFFBC9

#EFFBC9 is a very light, moderate yellow-green. Relative luminance 0.916; OKLCH L 96.7% C 0.066 H 118.6°. Best body text is #000000 at 19.31:1 contrast (WCAG AA passes).

Color values

HEX	#EFFBC9
RGB	rgb(239, 251, 201)
HSL	hsl(74, 86%, 89%)
HSV	hsv(74, 20%, 98%)
CMYK	cmyk(4.8%, 0%, 19.9%, 1.6%)
CIE-LAB	lab(96.64, -12.19, 22.69)
CIE-LCH	lch(96.64, 25.76, 118.24°)
OKLab	oklab(96.67% -0.0316 0.058)
OKLCH	oklch(96.67% 0.066 118.6)
XYZ	xyz(80.6353, 91.5624, 68.6723)
Luminance	0.9156 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFFBC9 #D5C9FB

analogous

#FBEEC9 #EFFBC9 #D6FBC9

triadic

#EFFBC9 #C9EFFB #FBC9EF

tetradic

#EFFBC9 #C9FBEE #D5C9FB #FBC9D6

square

#EFFBC9 #C9FBEE #D5C9FB #FBC9D6

split-complementary

#EFFBC9 #C9D6FB #EEC9FB

monochromatic

#CDF357 #DEF790 #EFFBC9 #F7FDE3 #F7FDE3

Accessibility & contrast

On white

1.09

#EFFBC9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

19.31

#EFFBC9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFFBC9

19.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFFBC9	#FFFFFF	#000000	##000000
##EFFBC9	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)

#FFF5C6

Deuteranopia (green-blind)

#FFF6CB

Tritanopia (blue-blind)

#F4F5ED

Achromatopsia (no color)

#F5F5F5

Design tokens & code

CSS

--color: #effbc9;
/* rgb */ color: rgb(239, 251, 201);
/* oklch */ color: oklch(96.7% 0.066 118.6);

Tailwind

colors: {
  custom: {
    50: '#f4fcd9',
    500: '#effbc9',
    950: '#000000',
  },
}

SCSS

$custom: #effbc9;
$custom-light: #f4fcd9;
$custom-dark: #000000;

JSON

{
  "hex": "#effbc9",
  "rgb": {
    "r": 239,
    "g": 251,
    "b": 201
  },
  "hsl": {
    "h": 74.4,
    "s": 86.207,
    "l": 88.627
  },
  "oklch": {
    "l": 0.96667,
    "c": 0.06607,
    "h": 118.6
  },
  "luminance": 0.91562
}

Semantic roles & 50–950 ramp

primary

#EFFBC9

secondary

#9D87E1

accent

#03E339

background

#FFFFFE

surface

#FEFFFB

border

#D6D7D4

text

#171714

muted

#858583

Preview Lab

Preview with #EFFBC9

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

Preview Lab → · Contrast checker → · Palette generator →