#EFF99F#EFF99F

#EFF99F is a very light, moderate yellow. Relative luminance 0.886; OKLCH L 95.5% C 0.113 H 113.7°. Best body text is #000000 at 18.72:1 contrast (WCAG AA passes).

Color values

HEX	#EFF99F
RGB	rgb(239, 249, 159)
HSL	hsl(67, 88%, 80%)
HSV	hsv(67, 36%, 98%)
CMYK	cmyk(4%, 0%, 36.1%, 2.4%)
CIE-LAB	lab(95.42, -16.71, 42.13)
CIE-LCH	lch(95.42, 45.32, 111.63°)
OKLab	oklab(95.46% -0.0455 0.1035)
OKLCH	oklch(95.46% 0.113 113.7)
XYZ	xyz(75.7307, 88.6062, 45.9074)
Luminance	0.8861 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF99F #A99FF9

analogous

#F9D69F #EFF99F #C2F99F

triadic

#EFF99F #9FEFF9 #F99FEF

tetradic

#EFF99F #9FF9D6 #A99FF9 #F99FC2

square

#EFF99F #9FF9D6 #A99FF9 #F99FC2

split-complementary

#EFF99F #9FC2F9 #D69FF9

monochromatic

#DCF22C #E5F565 #EFF99F #F9FDD9 #FAFDE2

Accessibility & contrast

On white

1.12

#EFF99F on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.72

#EFF99F on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF99F

18.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF99F	#FFFFFF	#000000	##000000
##EFF99F	1.00	1.12	18.72	18.72
#FFFFFF	1.12	1.00	21.00	21.00
#000000	18.72	21.00	1.00	1.00
##000000	18.72	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF198

Deuteranopia (green-blind)

#FFF3A3

Tritanopia (blue-blind)

#F9EFE3

Achromatopsia (no color)

#F2F2F2

Design tokens & code

CSS

--color: #eff99f;
/* rgb */ color: rgb(239, 249, 159);
/* oklch */ color: oklch(95.5% 0.113 113.7);

Tailwind

colors: {
  custom: {
    50: '#f5fbbc',
    500: '#eff99f',
    950: '#000000',
  },
}

SCSS

$custom: #eff99f;
$custom-light: #f5fbbc;
$custom-dark: #000000;

JSON

{
  "hex": "#eff99f",
  "rgb": {
    "r": 239,
    "g": 249,
    "b": 159
  },
  "hsl": {
    "h": 66.667,
    "s": 88.235,
    "l": 80
  },
  "oklch": {
    "l": 0.9546,
    "c": 0.11307,
    "h": 113.7
  },
  "luminance": 0.88605
}

Semantic roles & 50–950 ramp

primary

#EFF99F

secondary

#7062DA

accent

#01E51A

background

#FFFFFD

surface

#FEFFF8

border

#D6D7D1

text

#171712

muted

#858582

Preview Lab

Preview with #EFF99F

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

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