#EFF09F#EFF09F

#EFF09F is a very light, moderate yellow. Relative luminance 0.832; OKLCH L 93.6% C 0.102 H 108.8°. Best body text is #000000 at 17.63:1 contrast (WCAG AA passes).

Color values

HEX	#EFF09F
RGB	rgb(239, 240, 159)
HSL	hsl(61, 73%, 78%)
HSV	hsv(61, 34%, 94%)
CMYK	cmyk(0.4%, 0%, 33.8%, 5.9%)
CIE-LAB	lab(93.09, -12.29, 39.11)
CIE-LCH	lch(93.09, 41.00, 107.45°)
OKLab	oklab(93.61% -0.0329 0.0965)
OKLCH	oklch(93.61% 0.102 108.8)
XYZ	xyz(73.0153, 83.1754, 45.0022)
Luminance	0.8317 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF09F #A09FF0

analogous

#F0C89F #EFF09F #C6F09F

triadic

#EFF09F #9FEFF0 #F09FEF

tetradic

#EFF09F #9FF0C8 #A09FF0 #F09FC6

square

#EFF09F #9FF0C8 #A09FF0 #F09FC6

split-complementary

#EFF09F #9FC6F0 #C89FF0

monochromatic

#DDDF35 #E6E86A #EFF09F #F8F8D4 #FBFBE5

Accessibility & contrast

On white

1.19

#EFF09F on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.63

#EFF09F on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF09F

17.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF09F	#FFFFFF	#000000	##000000
##EFF09F	1.00	1.19	17.63	17.63
#FFFFFF	1.19	1.00	21.00	21.00
#000000	17.63	21.00	1.00	1.00
##000000	17.63	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FCE999

Deuteranopia (green-blind)

#FEEDA2

Tritanopia (blue-blind)

#FAE6DB

Achromatopsia (no color)

#EBEBEB

Design tokens & code

CSS

--color: #eff09f;
/* rgb */ color: rgb(239, 240, 159);
/* oklch */ color: oklch(93.6% 0.102 108.8);

Tailwind

colors: {
  custom: {
    50: '#f5f4bc',
    500: '#eff09f',
    950: '#000000',
  },
}

SCSS

$custom: #eff09f;
$custom-light: #f5f4bc;
$custom-dark: #000000;

JSON

{
  "hex": "#eff09f",
  "rgb": {
    "r": 239,
    "g": 240,
    "b": 159
  },
  "hsl": {
    "h": 60.741,
    "s": 72.973,
    "l": 78.235
  },
  "oklch": {
    "l": 0.93612,
    "c": 0.10199,
    "h": 108.8
  },
  "luminance": 0.83174
}

Semantic roles & 50–950 ramp

primary

#EFF09F

secondary

#6766CD

accent

#10D513

background

#FFFFFD

surface

#FEFEF8

border

#D6D6D1

text

#171712

muted

#858582

Preview Lab

Preview with #EFF09F

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

Preview Lab → · Contrast checker → · Palette generator →