#EFF66C#EFF66C

#EFF66C is a very light, vivid yellow. Relative luminance 0.853; OKLCH L 94.2% C 0.160 H 111.8°. Best body text is #000000 at 18.07:1 contrast (WCAG AA passes).

Color values

HEX	#EFF66C
RGB	rgb(239, 246, 108)
HSL	hsl(63, 88%, 69%)
HSV	hsv(63, 56%, 96%)
CMYK	cmyk(2.8%, 0%, 56.1%, 3.5%)
CIE-LAB	lab(94.03, -20.05, 64.21)
CIE-LCH	lch(94.03, 67.27, 107.34°)
OKLab	oklab(94.16% -0.0594 0.1486)
OKLCH	oklch(94.16% 0.16 111.8)
XYZ	xyz(71.2609, 85.3465, 26.9041)
Luminance	0.8535 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF66C #736CF6

analogous

#F6B86C #EFF66C #AAF66C

triadic

#EFF66C #6CEFF6 #F66CEF

tetradic

#EFF66C #6CF6B8 #736CF6 #F66CAA

square

#EFF66C #6CF6B8 #736CF6 #F66CAA

split-complementary

#EFF66C #6CAAF6 #B86CF6

monochromatic

#D0DA0D #E9F232 #EFF66C #F5FAA6 #FCFDDF

Accessibility & contrast

On white

1.16

#EFF66C on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.07

#EFF66C on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF66C

18.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF66C	#FFFFFF	#000000	##000000
##EFF66C	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)

#FFEC5D

Deuteranopia (green-blind)

#FFF074

Tritanopia (blue-blind)

#FDE9D8

Achromatopsia (no color)

#EEEEEE

Design tokens & code

CSS

--color: #eff66c;
/* rgb */ color: rgb(239, 246, 108);
/* oklch */ color: oklch(94.2% 0.160 111.8);

Tailwind

colors: {
  custom: {
    50: '#f7f99b',
    500: '#eff66c',
    950: '#000000',
  },
}

SCSS

$custom: #eff66c;
$custom-light: #f7f99b;
$custom-dark: #000000;

JSON

{
  "hex": "#eff66c",
  "rgb": {
    "r": 239,
    "g": 246,
    "b": 108
  },
  "hsl": {
    "h": 63.043,
    "s": 88.462,
    "l": 69.412
  },
  "oklch": {
    "l": 0.94162,
    "c": 0.16005,
    "h": 111.8
  },
  "luminance": 0.85345
}

Semantic roles & 50–950 ramp

primary

#EFF66C

secondary

#3E36D0

accent

#00E50C

background

#FFFFFC

surface

#FFFFF5

border

#D7D7CF

text

#18170E

muted

#86857F

Preview Lab

Preview with #EFF66C

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

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