#EFFF97#EFFF97

#EFFF97 is a very light, vivid yellow. Relative luminance 0.921; OKLCH L 96.6% C 0.129 H 116.0°. Best body text is #000000 at 19.42:1 contrast (WCAG AA passes).

Color values

HEX	#EFFF97
RGB	rgb(239, 255, 151)
HSL	hsl(69, 100%, 80%)
HSV	hsv(69, 41%, 100%)
CMYK	cmyk(6.3%, 0%, 40.8%, 0%)
CIE-LAB	lab(96.86, -20.49, 47.86)
CIE-LCH	lch(96.86, 52.06, 113.17°)
OKLab	oklab(96.58% -0.0568 0.1162)
OKLCH	oklch(96.58% 0.129 116)
XYZ	xyz(76.9431, 92.1058, 42.9970)
Luminance	0.9211 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFFF97 #A797FF

analogous

#FFDB97 #EFFF97 #BBFF97

triadic

#EFFF97 #97EFFF #FF97EF

tetradic

#EFFF97 #97FFDB #A797FF #FF97BB

square

#EFFF97 #97FFDB #A797FF #FF97BB

split-complementary

#EFFF97 #97BBFF #DB97FF

monochromatic

#DCFF1D #E6FF5A #EFFF97 #F8FFD4 #FAFFE0

Accessibility & contrast

On white

1.08

#EFFF97 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

19.42

#EFFF97 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFFF97

19.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFFF97	#FFFFFF	#000000	##000000
##EFFF97	1.00	1.08	19.42	19.42
#FFFFFF	1.08	1.00	21.00	21.00
#000000	19.42	21.00	1.00	1.00
##000000	19.42	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF58F

Deuteranopia (green-blind)

#FFF79C

Tritanopia (blue-blind)

#FAF4E6

Achromatopsia (no color)

#F6F6F6

Design tokens & code

CSS

--color: #efff97;
/* rgb */ color: rgb(239, 255, 151);
/* oklch */ color: oklch(96.6% 0.129 116.0);

Tailwind

colors: {
  custom: {
    50: '#f5ffb7',
    500: '#efff97',
    950: '#000000',
  },
}

SCSS

$custom: #efff97;
$custom-light: #f5ffb7;
$custom-dark: #000000;

JSON

{
  "hex": "#efff97",
  "rgb": {
    "r": 239,
    "g": 255,
    "b": 151
  },
  "hsl": {
    "h": 69.231,
    "s": 100,
    "l": 79.608
  },
  "oklch": {
    "l": 0.96579,
    "c": 0.12936,
    "h": 116
  },
  "luminance": 0.92105
}

Semantic roles & 50–950 ramp

primary

#EFFF97

secondary

#6E59E2

accent

#00E623

background

#FFFFFD

surface

#FFFFF8

border

#D7D7D1

text

#171811

muted

#858681

Preview Lab

Preview with #EFFF97

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

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