#EFF683#EFF683

#EFF683 is a very light, vivid yellow. Relative luminance 0.859; OKLCH L 94.4% C 0.139 H 111.9°. Best body text is #000000 at 18.18:1 contrast (WCAG AA passes).

Color values

HEX	#EFF683
RGB	rgb(239, 246, 131)
HSL	hsl(64, 86%, 74%)
HSV	hsv(64, 47%, 96%)
CMYK	cmyk(2.8%, 0%, 46.7%, 3.5%)
CIE-LAB	lab(94.27, -18.14, 54.14)
CIE-LCH	lch(94.27, 57.10, 108.53°)
OKLab	oklab(94.43% -0.0517 0.129)
OKLCH	oklch(94.43% 0.139 111.9)
XYZ	xyz(72.6504, 85.9023, 34.2220)
Luminance	0.8590 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF683 #8A83F6

analogous

#F6C483 #EFF683 #B6F683

triadic

#EFF683 #83EFF6 #F683EF

tetradic

#EFF683 #83F6C4 #8A83F6 #F683B6

square

#EFF683 #83F6C4 #8A83F6 #F683B6

split-complementary

#EFF683 #83B6F6 #C483F6

monochromatic

#E0ED11 #E8F24A #EFF683 #F6FABC #FBFDE2

Accessibility & contrast

On white

1.16

#EFF683 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.18

#EFF683 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF683

18.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF683	#FFFFFF	#000000	##000000
##EFF683	1.00	1.16	18.18	18.18
#FFFFFF	1.16	1.00	21.00	21.00
#000000	18.18	21.00	1.00	1.00
##000000	18.18	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFED79

Deuteranopia (green-blind)

#FFF089

Tritanopia (blue-blind)

#FCEADB

Achromatopsia (no color)

#EEEEEE

Design tokens & code

CSS

--color: #eff683;
/* rgb */ color: rgb(239, 246, 131);
/* oklch */ color: oklch(94.4% 0.139 111.9);

Tailwind

colors: {
  custom: {
    50: '#f6f9a9',
    500: '#eff683',
    950: '#000000',
  },
}

SCSS

$custom: #eff683;
$custom-light: #f6f9a9;
$custom-dark: #000000;

JSON

{
  "hex": "#eff683",
  "rgb": {
    "r": 239,
    "g": 246,
    "b": 131
  },
  "hsl": {
    "h": 63.652,
    "s": 86.466,
    "l": 73.922
  },
  "oklch": {
    "l": 0.94429,
    "c": 0.13897,
    "h": 111.9
  },
  "luminance": 0.85901
}

Semantic roles & 50–950 ramp

primary

#EFF683

secondary

#534BD3

accent

#03E310

background

#FFFFFD

surface

#FFFFF7

border

#D7D7D0

text

#171710

muted

#858581

Preview Lab

Preview with #EFF683

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

Preview Lab → · Contrast checker → · Palette generator →