#EFFB6F#EFFB6F

#EFFB6F is a very light, vivid yellow. Relative luminance 0.885; OKLCH L 95.2% C 0.163 H 113.6°. Best body text is #000000 at 18.70:1 contrast (WCAG AA passes).

Color values

HEX	#EFFB6F
RGB	rgb(239, 251, 111)
HSL	hsl(65, 95%, 71%)
HSV	hsv(65, 56%, 98%)
CMYK	cmyk(4.8%, 0%, 55.8%, 1.6%)
CIE-LAB	lab(95.37, -22.22, 64.42)
CIE-LCH	lch(95.37, 68.14, 109.03°)
OKLab	oklab(95.24% -0.0652 0.1494)
OKLCH	oklch(95.24% 0.163 113.6)
XYZ	xyz(72.9646, 88.4941, 28.2732)
Luminance	0.8849 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFFB6F #7B6FFB

analogous

#FBC16F #EFFB6F #A9FB6F

triadic

#EFFB6F #6FEFFB #FB6FEF

tetradic

#EFFB6F #6FFBC1 #7B6FFB #FB6FA9

square

#EFFB6F #6FFBC1 #7B6FFB #FB6FA9

split-complementary

#EFFB6F #6FA9FB #C16FFB

monochromatic

#D6E906 #E8F933 #EFFB6F #F6FDAB #FCFEE1

Accessibility & contrast

On white

1.12

#EFFB6F on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.70

#EFFB6F on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFFB6F

18.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFFB6F	#FFFFFF	#000000	##000000
##EFFB6F	1.00	1.12	18.70	18.70
#FFFFFF	1.12	1.00	21.00	21.00
#000000	18.70	21.00	1.00	1.00
##000000	18.70	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF060

Deuteranopia (green-blind)

#FFF377

Tritanopia (blue-blind)

#FDEEDC

Achromatopsia (no color)

#F2F2F2

Design tokens & code

CSS

--color: #effb6f;
/* rgb */ color: rgb(239, 251, 111);
/* oklch */ color: oklch(95.2% 0.163 113.6);

Tailwind

colors: {
  custom: {
    50: '#f7fc9d',
    500: '#effb6f',
    950: '#000000',
  },
}

SCSS

$custom: #effb6f;
$custom-light: #f7fc9d;
$custom-dark: #000000;

JSON

{
  "hex": "#effb6f",
  "rgb": {
    "r": 239,
    "g": 251,
    "b": 111
  },
  "hsl": {
    "h": 65.143,
    "s": 94.595,
    "l": 70.98
  },
  "oklch": {
    "l": 0.95239,
    "c": 0.16303,
    "h": 113.6
  },
  "luminance": 0.88493
}

Semantic roles & 50–950 ramp

primary

#EFFB6F

secondary

#4538D6

accent

#00E614

background

#FFFFFC

surface

#FFFFF5

border

#D7D7CF

text

#17170F

muted

#858580

Preview Lab

Preview with #EFFB6F

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

Preview Lab → · Contrast checker → · Palette generator →