#EFF9CB#EFF9CB

#EFF9CB is a very light, moderate yellow-green. Relative luminance 0.904; OKLCH L 96.3% C 0.061 H 117.5°. Best body text is #000000 at 19.08:1 contrast (WCAG AA passes).

Color values

HEX	#EFF9CB
RGB	rgb(239, 249, 203)
HSL	hsl(73, 79%, 89%)
HSV	hsv(73, 18%, 98%)
CMYK	cmyk(4%, 0%, 18.5%, 2.4%)
CIE-LAB	lab(96.17, -10.91, 21.02)
CIE-LCH	lch(96.17, 23.68, 117.43°)
OKLab	oklab(96.31% -0.0281 0.0539)
OKLCH	oklch(96.31% 0.061 117.5)
XYZ	xyz(80.2506, 90.4142, 69.7123)
Luminance	0.9041 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF9CB #D5CBF9

analogous

#F9ECCB #EFF9CB #D8F9CB

triadic

#EFF9CB #CBEFF9 #F9CBEF

tetradic

#EFF9CB #CBF9EC #D5CBF9 #F9CBD8

square

#EFF9CB #CBF9EC #D5CBF9 #F9CBD8

split-complementary

#EFF9CB #CBD8F9 #ECCBF9

monochromatic

#CDEC5D #DEF394 #EFF9CB #F7FCE4 #F7FCE4

Accessibility & contrast

On white

1.10

#EFF9CB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

19.08

#EFF9CB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF9CB

19.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF9CB	#FFFFFF	#000000	##000000
##EFF9CB	1.00	1.10	19.08	19.08
#FFFFFF	1.10	1.00	21.00	21.00
#000000	19.08	21.00	1.00	1.00
##000000	19.08	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF4C8

Deuteranopia (green-blind)

#FFF4CD

Tritanopia (blue-blind)

#F4F4EC

Achromatopsia (no color)

#F4F4F4

Design tokens & code

CSS

--color: #eff9cb;
/* rgb */ color: rgb(239, 249, 203);
/* oklch */ color: oklch(96.3% 0.061 117.5);

Tailwind

colors: {
  custom: {
    50: '#f4fbdb',
    500: '#eff9cb',
    950: '#000000',
  },
}

SCSS

$custom: #eff9cb;
$custom-light: #f4fbdb;
$custom-dark: #000000;

JSON

{
  "hex": "#eff9cb",
  "rgb": {
    "r": 239,
    "g": 249,
    "b": 203
  },
  "hsl": {
    "h": 73.043,
    "s": 79.31,
    "l": 88.627
  },
  "oklch": {
    "l": 0.96305,
    "c": 0.06074,
    "h": 117.5
  },
  "luminance": 0.90414
}

Semantic roles & 50–950 ramp

primary

#EFF9CB

secondary

#9D8BDE

accent

#0ADC37

background

#FFFFFE

surface

#FEFFFB

border

#D6D7D4

text

#171715

muted

#858584

Preview Lab

Preview with #EFF9CB

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

Preview Lab → · Contrast checker → · Palette generator →