#EFFF8F#EFFF8F

#EFFF8F is a very light, vivid yellow. Relative luminance 0.919; OKLCH L 96.5% C 0.138 H 115.7°. Best body text is #000000 at 19.37:1 contrast (WCAG AA passes).

Color values

HEX	#EFFF8F
RGB	rgb(239, 255, 143)
HSL	hsl(69, 100%, 78%)
HSV	hsv(69, 44%, 100%)
CMYK	cmyk(6.3%, 0%, 43.9%, 0%)
CIE-LAB	lab(96.76, -21.32, 51.55)
CIE-LCH	lch(96.76, 55.78, 112.47°)
OKLab	oklab(96.46% -0.0597 0.1241)
OKLCH	oklch(96.46% 0.138 115.7)
XYZ	xyz(76.3153, 91.8547, 39.6907)
Luminance	0.9185 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFFF8F #9F8FFF

analogous

#FFD78F #EFFF8F #B7FF8F

triadic

#EFFF8F #8FEFFF #FF8FEF

tetradic

#EFFF8F #8FFFD7 #9F8FFF #FF8FB7

square

#EFFF8F #8FFFD7 #9F8FFF #FF8FB7

split-complementary

#EFFF8F #8FB7FF #D78FFF

monochromatic

#DEFF15 #E6FF52 #EFFF8F #F8FFCC #FBFFE0

Accessibility & contrast

On white

1.08

#EFFF8F on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

19.37

#EFFF8F on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFFF8F

19.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFFF8F	#FFFFFF	#000000	##000000
##EFFF8F	1.00	1.08	19.37	19.37
#FFFFFF	1.08	1.00	21.00	21.00
#000000	19.37	21.00	1.00	1.00
##000000	19.37	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF586

Deuteranopia (green-blind)

#FFF795

Tritanopia (blue-blind)

#FAF4E4

Achromatopsia (no color)

#F6F6F6

Design tokens & code

CSS

--color: #efff8f;
/* rgb */ color: rgb(239, 255, 143);
/* oklch */ color: oklch(96.5% 0.138 115.7);

Tailwind

colors: {
  custom: {
    50: '#f6ffb2',
    500: '#efff8f',
    950: '#000000',
  },
}

SCSS

$custom: #efff8f;
$custom-light: #f6ffb2;
$custom-dark: #000000;

JSON

{
  "hex": "#efff8f",
  "rgb": {
    "r": 239,
    "g": 255,
    "b": 143
  },
  "hsl": {
    "h": 68.571,
    "s": 100,
    "l": 78.039
  },
  "oklch": {
    "l": 0.96463,
    "c": 0.13769,
    "h": 115.7
  },
  "luminance": 0.91854
}

Semantic roles & 50–950 ramp

primary

#EFFF8F

secondary

#6652E0

accent

#00E621

background

#FFFFFD

surface

#FFFFF8

border

#D7D7D1

text

#171811

muted

#858681

Preview Lab

Preview with #EFFF8F

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

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