#EFFF6C#EFFF6C

#EFFF6C is a very light, vivid yellow. Relative luminance 0.910; OKLCH L 96.0% C 0.170 H 114.9°. Best body text is #000000 at 19.19:1 contrast (WCAG AA passes).

Color values

HEX	#EFFF6C
RGB	rgb(239, 255, 108)
HSL	hsl(67, 100%, 71%)
HSV	hsv(67, 58%, 100%)
CMYK	cmyk(6.3%, 0%, 57.6%, 0%)
CIE-LAB	lab(96.39, -24.34, 66.84)
CIE-LCH	lch(96.39, 71.13, 110.01°)
OKLab	oklab(96.05% -0.0715 0.1542)
OKLCH	oklch(96.05% 0.17 114.9)
XYZ	xyz(74.0649, 90.9546, 27.8388)
Luminance	0.9095 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFFF6C #7C6CFF

analogous

#FFC66C #EFFF6C #A5FF6C

triadic

#EFFF6C #6CEFFF #FF6CEF

tetradic

#EFFF6C #6CFFC6 #7C6CFF #FF6CA5

square

#EFFF6C #6CFFC6 #7C6CFF #FF6CA5

split-complementary

#EFFF6C #6CA5FF #C66CFF

monochromatic

#D6F100 #E8FF2F #EFFF6C #F6FFA9 #FCFFE0

Accessibility & contrast

On white

1.09

#EFFF6C on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

19.19

#EFFF6C on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFFF6C

19.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFFF6C	#FFFFFF	#000000	##000000
##EFFF6C	1.00	1.09	19.19	19.19
#FFFFFF	1.09	1.00	21.00	21.00
#000000	19.19	21.00	1.00	1.00
##000000	19.19	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF35C

Deuteranopia (green-blind)

#FFF675

Tritanopia (blue-blind)

#FDF2DF

Achromatopsia (no color)

#F5F5F5

Design tokens & code

CSS

--color: #efff6c;
/* rgb */ color: rgb(239, 255, 108);
/* oklch */ color: oklch(96.0% 0.170 114.9);

Tailwind

colors: {
  custom: {
    50: '#f7ff9b',
    500: '#efff6c',
    950: '#000000',
  },
}

SCSS

$custom: #efff6c;
$custom-light: #f7ff9b;
$custom-dark: #000000;

JSON

{
  "hex": "#efff6c",
  "rgb": {
    "r": 239,
    "g": 255,
    "b": 108
  },
  "hsl": {
    "h": 66.531,
    "s": 100,
    "l": 71.176
  },
  "oklch": {
    "l": 0.96048,
    "c": 0.17,
    "h": 114.9
  },
  "luminance": 0.90953
}

Semantic roles & 50–950 ramp

primary

#EFFF6C

secondary

#4634DB

accent

#00E619

background

#FFFFFC

surface

#FFFFF5

border

#D7D7CF

text

#18170E

muted

#86857F

Preview Lab

Preview with #EFFF6C

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

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