#EFFFC5#EFFFC5

#EFFFC5 is a very light, moderate yellow-green. Relative luminance 0.939; OKLCH L 97.4% C 0.077 H 120.4°. Best body text is #000000 at 19.78:1 contrast (WCAG AA passes).

Color values

HEX	#EFFFC5
RGB	rgb(239, 255, 197)
HSL	hsl(77, 100%, 89%)
HSV	hsv(77, 23%, 100%)
CMYK	cmyk(6.3%, 0%, 22.7%, 0%)
CIE-LAB	lab(97.59, -14.73, 26.04)
CIE-LCH	lch(97.59, 29.92, 119.51°)
OKLab	oklab(97.4% -0.0388 0.0662)
OKLCH	oklch(97.4% 0.077 120.4)
XYZ	xyz(81.4336, 93.9021, 66.6473)
Luminance	0.9390 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFFFC5 #D5C5FF

analogous

#FFF2C5 #EFFFC5 #D2FFC5

triadic

#EFFFC5 #C5EFFF #FFC5EF

tetradic

#EFFFC5 #C5FFF2 #D5C5FF #FFC5D2

square

#EFFFC5 #C5FFF2 #D5C5FF #FFC5D2

split-complementary

#EFFFC5 #C5D2FF #F2C5FF

monochromatic

#CDFF4B #DEFF88 #EFFFC5 #F7FFE0 #F7FFE0

Accessibility & contrast

On white

1.06

#EFFFC5 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

19.78

#EFFFC5 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFFFC5

19.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFFFC5	#FFFFFF	#000000	##000000
##EFFFC5	1.00	1.06	19.78	19.78
#FFFFFF	1.06	1.00	21.00	21.00
#000000	19.78	21.00	1.00	1.00
##000000	19.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF8C1

Deuteranopia (green-blind)

#FFF8C7

Tritanopia (blue-blind)

#F4F9EF

Achromatopsia (no color)

#F8F8F8

Design tokens & code

CSS

--color: #efffc5;
/* rgb */ color: rgb(239, 255, 197);
/* oklch */ color: oklch(97.4% 0.077 120.4);

Tailwind

colors: {
  custom: {
    50: '#f4ffd6',
    500: '#efffc5',
    950: '#000000',
  },
}

SCSS

$custom: #efffc5;
$custom-light: #f4ffd6;
$custom-dark: #000000;

JSON

{
  "hex": "#efffc5",
  "rgb": {
    "r": 239,
    "g": 255,
    "b": 197
  },
  "hsl": {
    "h": 76.552,
    "s": 100,
    "l": 88.627
  },
  "oklch": {
    "l": 0.97398,
    "c": 0.0767,
    "h": 120.4
  },
  "luminance": 0.93902
}

Semantic roles & 50–950 ramp

primary

#EFFFC5

secondary

#9D80E9

accent

#00E63F

background

#FFFFFE

surface

#FEFFFB

border

#D6D7D4

text

#171814

muted

#858683

Preview Lab

Preview with #EFFFC5

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

Preview Lab → · Contrast checker → · Palette generator →