#EFFF6E#EFFF6E

#EFFF6E is a very light, vivid yellow. Relative luminance 0.910; OKLCH L 96.1% C 0.168 H 114.9°. Best body text is #000000 at 19.20:1 contrast (WCAG AA passes).

Color values

HEX	#EFFF6E
RGB	rgb(239, 255, 110)
HSL	hsl(67, 100%, 72%)
HSV	hsv(67, 57%, 100%)
CMYK	cmyk(6.3%, 0%, 56.9%, 0%)
CIE-LAB	lab(96.41, -24.19, 66.01)
CIE-LCH	lch(96.41, 70.31, 110.12°)
OKLab	oklab(96.07% -0.0709 0.1527)
OKLCH	oklch(96.07% 0.168 114.9)
XYZ	xyz(74.1726, 90.9976, 28.4058)
Luminance	0.9100 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFFF6E #7E6EFF

analogous

#FFC76E #EFFF6E #A7FF6E

triadic

#EFFF6E #6EEFFF #FF6EEF

tetradic

#EFFF6E #6EFFC7 #7E6EFF #FF6EA7

square

#EFFF6E #6EFFC7 #7E6EFF #FF6EA7

split-complementary

#EFFF6E #6EA7FF #C76EFF

monochromatic

#D8F300 #E8FF31 #EFFF6E #F6FFAB #FCFFE0

Accessibility & contrast

On white

1.09

#EFFF6E on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

19.20

#EFFF6E on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFFF6E

19.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFFF6E	#FFFFFF	#000000	##000000
##EFFF6E	1.00	1.09	19.20	19.20
#FFFFFF	1.09	1.00	21.00	21.00
#000000	19.20	21.00	1.00	1.00
##000000	19.20	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF45E

Deuteranopia (green-blind)

#FFF677

Tritanopia (blue-blind)

#FDF2E0

Achromatopsia (no color)

#F5F5F5

Design tokens & code

CSS

--color: #efff6e;
/* rgb */ color: rgb(239, 255, 110);
/* oklch */ color: oklch(96.1% 0.168 114.9);

Tailwind

colors: {
  custom: {
    50: '#f7ff9c',
    500: '#efff6e',
    950: '#000000',
  },
}

SCSS

$custom: #efff6e;
$custom-light: #f7ff9c;
$custom-dark: #000000;

JSON

{
  "hex": "#efff6e",
  "rgb": {
    "r": 239,
    "g": 255,
    "b": 110
  },
  "hsl": {
    "h": 66.621,
    "s": 100,
    "l": 71.569
  },
  "oklch": {
    "l": 0.96068,
    "c": 0.16835,
    "h": 114.9
  },
  "luminance": 0.90997
}

Semantic roles & 50–950 ramp

primary

#EFFF6E

secondary

#4836DB

accent

#00E619

background

#FFFFFC

surface

#FFFFF5

border

#D7D7CF

text

#17170F

muted

#858580

Preview Lab

Preview with #EFFF6E

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

Preview Lab → · Contrast checker → · Palette generator →