#EFF783#EFF783

#EFF783 is a very light, vivid yellow. Relative luminance 0.865; OKLCH L 94.6% C 0.140 H 112.3°. Best body text is #000000 at 18.30:1 contrast (WCAG AA passes).

Color values

HEX	#EFF783
RGB	rgb(239, 247, 131)
HSL	hsl(64, 88%, 74%)
HSV	hsv(64, 47%, 97%)
CMYK	cmyk(3.2%, 0%, 47%, 3.1%)
CIE-LAB	lab(94.53, -18.63, 54.45)
CIE-LCH	lch(94.53, 57.55, 108.88°)
OKLab	oklab(94.64% -0.0531 0.1297)
OKLCH	oklch(94.64% 0.14 112.3)
XYZ	xyz(72.9553, 86.5122, 34.3237)
Luminance	0.8651 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF783 #8B83F7

analogous

#F7C583 #EFF783 #B5F783

triadic

#EFF783 #83EFF7 #F783EF

tetradic

#EFF783 #83F7C5 #8B83F7 #F783B5

square

#EFF783 #83F7C5 #8B83F7 #F783B5

split-complementary

#EFF783 #83B5F7 #C583F7

monochromatic

#E0F010 #E8F34A #EFF783 #F6FBBC #FBFDE2

Accessibility & contrast

On white

1.15

#EFF783 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.30

#EFF783 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF783

18.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF783	#FFFFFF	#000000	##000000
##EFF783	1.00	1.15	18.30	18.30
#FFFFFF	1.15	1.00	21.00	21.00
#000000	18.30	21.00	1.00	1.00
##000000	18.30	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEE79

Deuteranopia (green-blind)

#FFF189

Tritanopia (blue-blind)

#FCEBDC

Achromatopsia (no color)

#EFEFEF

Design tokens & code

CSS

--color: #eff783;
/* rgb */ color: rgb(239, 247, 131);
/* oklch */ color: oklch(94.6% 0.140 112.3);

Tailwind

colors: {
  custom: {
    50: '#f6f9a9',
    500: '#eff783',
    950: '#000000',
  },
}

SCSS

$custom: #eff783;
$custom-light: #f6f9a9;
$custom-dark: #000000;

JSON

{
  "hex": "#eff783",
  "rgb": {
    "r": 239,
    "g": 247,
    "b": 131
  },
  "hsl": {
    "h": 64.138,
    "s": 87.879,
    "l": 74.118
  },
  "oklch": {
    "l": 0.94636,
    "c": 0.14013,
    "h": 112.3
  },
  "luminance": 0.86511
}

Semantic roles & 50–950 ramp

primary

#EFF783

secondary

#544AD4

accent

#01E411

background

#FFFFFD

surface

#FFFFF7

border

#D7D7D0

text

#171710

muted

#858581

Preview Lab

Preview with #EFF783

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

Preview Lab → · Contrast checker → · Palette generator →