#EFF66D#EFF66D

#EFF66D is a very light, vivid yellow. Relative luminance 0.854; OKLCH L 94.2% C 0.159 H 111.8°. Best body text is #000000 at 18.07:1 contrast (WCAG AA passes).

Color values

HEX	#EFF66D
RGB	rgb(239, 246, 109)
HSL	hsl(63, 88%, 70%)
HSV	hsv(63, 56%, 96%)
CMYK	cmyk(2.8%, 0%, 55.7%, 3.5%)
CIE-LAB	lab(94.04, -19.97, 63.79)
CIE-LCH	lch(94.04, 66.84, 107.39°)
OKLab	oklab(94.17% -0.0591 0.1479)
OKLCH	oklch(94.17% 0.159 111.8)
XYZ	xyz(71.3144, 85.3679, 27.1860)
Luminance	0.8537 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF66D #746DF6

analogous

#F6B96D #EFF66D #AAF66D

triadic

#EFF66D #6DEFF6 #F66DEF

tetradic

#EFF66D #6DF6B9 #746DF6 #F66DAA

square

#EFF66D #6DF6B9 #746DF6 #F66DAA

split-complementary

#EFF66D #6DAAF6 #B96DF6

monochromatic

#D1DB0E #E9F233 #EFF66D #F5FAA7 #FCFDE0

Accessibility & contrast

On white

1.16

#EFF66D on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.07

#EFF66D on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF66D

18.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF66D	#FFFFFF	#000000	##000000
##EFF66D	1.00	1.16	18.07	18.07
#FFFFFF	1.16	1.00	21.00	21.00
#000000	18.07	21.00	1.00	1.00
##000000	18.07	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEC5F

Deuteranopia (green-blind)

#FFF075

Tritanopia (blue-blind)

#FDE9D8

Achromatopsia (no color)

#EEEEEE

Design tokens & code

CSS

--color: #eff66d;
/* rgb */ color: rgb(239, 246, 109);
/* oklch */ color: oklch(94.2% 0.159 111.8);

Tailwind

colors: {
  custom: {
    50: '#f7f99b',
    500: '#eff66d',
    950: '#000000',
  },
}

SCSS

$custom: #eff66d;
$custom-light: #f7f99b;
$custom-dark: #000000;

JSON

{
  "hex": "#eff66d",
  "rgb": {
    "r": 239,
    "g": 246,
    "b": 109
  },
  "hsl": {
    "h": 63.066,
    "s": 88.387,
    "l": 69.608
  },
  "oklch": {
    "l": 0.94172,
    "c": 0.15921,
    "h": 111.8
  },
  "luminance": 0.85366
}

Semantic roles & 50–950 ramp

primary

#EFF66D

secondary

#3F37D0

accent

#01E50C

background

#FFFFFC

surface

#FFFFF5

border

#D7D7CF

text

#17170E

muted

#85857F

Preview Lab

Preview with #EFF66D

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

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