#EFFC6E#EFFC6E

#EFFC6E is a very light, vivid yellow. Relative luminance 0.891; OKLCH L 95.4% C 0.165 H 113.9°. Best body text is #000000 at 18.82:1 contrast (WCAG AA passes).

Color values

HEX	#EFFC6E
RGB	rgb(239, 252, 110)
HSL	hsl(65, 96%, 71%)
HSV	hsv(65, 56%, 99%)
CMYK	cmyk(5.2%, 0%, 56.3%, 1.2%)
CIE-LAB	lab(95.62, -22.77, 65.13)
CIE-LCH	lch(95.62, 69.00, 109.27°)
OKLab	oklab(95.44% -0.0669 0.1508)
OKLCH	oklch(95.44% 0.165 113.9)
XYZ	xyz(73.2230, 89.0986, 28.0893)
Luminance	0.8910 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFFC6E #7B6EFC

analogous

#FCC26E #EFFC6E #A8FC6E

triadic

#EFFC6E #6EEFFC #FC6EEF

tetradic

#EFFC6E #6EFCC2 #7B6EFC #FC6EA8

square

#EFFC6E #6EFCC2 #7B6EFC #FC6EA8

split-complementary

#EFFC6E #6EA8FC #C26EFC

monochromatic

#D6EB05 #E8FB32 #EFFC6E #F6FDAA #FCFEE1

Accessibility & contrast

On white

1.12

#EFFC6E on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.82

#EFFC6E on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFFC6E

18.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFFC6E	#FFFFFF	#000000	##000000
##EFFC6E	1.00	1.12	18.82	18.82
#FFFFFF	1.12	1.00	21.00	21.00
#000000	18.82	21.00	1.00	1.00
##000000	18.82	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF15F

Deuteranopia (green-blind)

#FFF476

Tritanopia (blue-blind)

#FDEFDD

Achromatopsia (no color)

#F2F2F2

Design tokens & code

CSS

--color: #effc6e;
/* rgb */ color: rgb(239, 252, 110);
/* oklch */ color: oklch(95.4% 0.165 113.9);

Tailwind

colors: {
  custom: {
    50: '#f7fd9c',
    500: '#effc6e',
    950: '#000000',
  },
}

SCSS

$custom: #effc6e;
$custom-light: #f7fd9c;
$custom-dark: #000000;

JSON

{
  "hex": "#effc6e",
  "rgb": {
    "r": 239,
    "g": 252,
    "b": 110
  },
  "hsl": {
    "h": 65.493,
    "s": 95.946,
    "l": 70.98
  },
  "oklch": {
    "l": 0.95438,
    "c": 0.16498,
    "h": 113.9
  },
  "luminance": 0.89097
}

Semantic roles & 50–950 ramp

primary

#EFFC6E

secondary

#4537D8

accent

#00E615

background

#FFFFFC

surface

#FFFFF5

border

#D7D7CF

text

#17170F

muted

#858580

Preview Lab

Preview with #EFFC6E

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

Preview Lab → · Contrast checker → · Palette generator →