#EFF664#EFF664

#EFF664 is a very light, vivid yellow. Relative luminance 0.852; OKLCH L 94.1% C 0.167 H 111.8°. Best body text is #000000 at 18.04:1 contrast (WCAG AA passes).

Color values

HEX	#EFF664
RGB	rgb(239, 246, 100)
HSL	hsl(63, 89%, 68%)
HSV	hsv(63, 59%, 96%)
CMYK	cmyk(2.8%, 0%, 59.3%, 3.5%)
CIE-LAB	lab(93.96, -20.61, 67.51)
CIE-LCH	lch(93.96, 70.59, 106.98°)
OKLab	oklab(94.08% -0.0618 0.1547)
OKLCH	oklch(94.08% 0.167 111.8)
XYZ	xyz(70.8545, 85.1839, 24.7638)
Luminance	0.8518 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF664 #6B64F6

analogous

#F6B464 #EFF664 #A6F664

triadic

#EFF664 #64EFF6 #F664EF

tetradic

#EFF664 #64F6B4 #6B64F6 #F664A6

square

#EFF664 #64F6B4 #6B64F6 #F664A6

split-complementary

#EFF664 #64A6F6 #B464F6

monochromatic

#CAD30C #E9F32A #EFF664 #F5F99E #FBFDD8

Accessibility & contrast

On white

1.16

#EFF664 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.04

#EFF664 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF664

18.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF664	#FFFFFF	#000000	##000000
##EFF664	1.00	1.16	18.04	18.04
#FFFFFF	1.16	1.00	21.00	21.00
#000000	18.04	21.00	1.00	1.00
##000000	18.04	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEC53

Deuteranopia (green-blind)

#FFF06D

Tritanopia (blue-blind)

#FEE8D7

Achromatopsia (no color)

#EEEEEE

Design tokens & code

CSS

--color: #eff664;
/* rgb */ color: rgb(239, 246, 100);
/* oklch */ color: oklch(94.1% 0.167 111.8);

Tailwind

colors: {
  custom: {
    50: '#f7f996',
    500: '#eff664',
    950: '#000000',
  },
}

SCSS

$custom: #eff664;
$custom-light: #f7f996;
$custom-dark: #000000;

JSON

{
  "hex": "#eff664",
  "rgb": {
    "r": 239,
    "g": 246,
    "b": 100
  },
  "hsl": {
    "h": 62.877,
    "s": 89.024,
    "l": 67.843
  },
  "oklch": {
    "l": 0.94083,
    "c": 0.16657,
    "h": 111.8
  },
  "luminance": 0.85182
}

Semantic roles & 50–950 ramp

primary

#EFF664

secondary

#3730CE

accent

#00E60B

background

#FFFFFC

surface

#FFFFF5

border

#D7D7CF

text

#18170E

muted

#86857F

Preview Lab

Preview with #EFF664

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

Preview Lab → · Contrast checker → · Palette generator →