#EFFE6F#EFFE6F

#EFFE6F is a very light, vivid yellow. Relative luminance 0.904; OKLCH L 95.9% C 0.166 H 114.6°. Best body text is #000000 at 19.08:1 contrast (WCAG AA passes).

Color values

HEX	#EFFE6F
RGB	rgb(239, 254, 111)
HSL	hsl(66, 99%, 72%)
HSV	hsv(66, 56%, 100%)
CMYK	cmyk(5.9%, 0%, 56.3%, 0.4%)
CIE-LAB	lab(96.16, -23.64, 65.30)
CIE-LCH	lch(96.16, 69.45, 109.90°)
OKLab	oklab(95.87% -0.0692 0.1513)
OKLCH	oklch(95.87% 0.166 114.6)
XYZ	xyz(73.9092, 90.3832, 28.5881)
Luminance	0.9038 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFFE6F #7E6FFE

analogous

#FEC66F #EFFE6F #A8FE6F

triadic

#EFFE6F #6FEFFE #FE6FEF

tetradic

#EFFE6F #6FFEC6 #7E6FFE #FE6FA8

square

#EFFE6F #6FFEC6 #7E6FFE #FE6FA8

split-complementary

#EFFE6F #6FA8FE #C66FFE

monochromatic

#D8F102 #E8FE32 #EFFE6F #F6FEAC #FCFFE1

Accessibility & contrast

On white

1.10

#EFFE6F on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

19.08

#EFFE6F on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFFE6F

19.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFFE6F	#FFFFFF	#000000	##000000
##EFFE6F	1.00	1.10	19.08	19.08
#FFFFFF	1.10	1.00	21.00	21.00
#000000	19.08	21.00	1.00	1.00
##000000	19.08	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF360

Deuteranopia (green-blind)

#FFF578

Tritanopia (blue-blind)

#FDF1DF

Achromatopsia (no color)

#F4F4F4

Design tokens & code

CSS

--color: #effe6f;
/* rgb */ color: rgb(239, 254, 111);
/* oklch */ color: oklch(95.9% 0.166 114.6);

Tailwind

colors: {
  custom: {
    50: '#f7fe9d',
    500: '#effe6f',
    950: '#000000',
  },
}

SCSS

$custom: #effe6f;
$custom-light: #f7fe9d;
$custom-dark: #000000;

JSON

{
  "hex": "#effe6f",
  "rgb": {
    "r": 239,
    "g": 254,
    "b": 111
  },
  "hsl": {
    "h": 66.294,
    "s": 98.621,
    "l": 71.569
  },
  "oklch": {
    "l": 0.95868,
    "c": 0.1664,
    "h": 114.6
  },
  "luminance": 0.90382
}

Semantic roles & 50–950 ramp

primary

#EFFE6F

secondary

#4837DA

accent

#00E618

background

#FFFFFC

surface

#FFFFF5

border

#D7D7CF

text

#17170F

muted

#858580

Preview Lab

Preview with #EFFE6F

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

Preview Lab → · Contrast checker → · Palette generator →