#EFFE99#EFFE99

#EFFE99 is a very light, vivid yellow. Relative luminance 0.915; OKLCH L 96.4% C 0.126 H 115.7°. Best body text is #000000 at 19.31:1 contrast (WCAG AA passes).

Color values

HEX	#EFFE99
RGB	rgb(239, 254, 153)
HSL	hsl(69, 98%, 80%)
HSV	hsv(69, 40%, 100%)
CMYK	cmyk(5.9%, 0%, 39.8%, 0.4%)
CIE-LAB	lab(96.63, -19.79, 46.60)
CIE-LCH	lch(96.63, 50.63, 113.01°)
OKLab	oklab(96.4% -0.0547 0.1135)
OKLCH	oklch(96.4% 0.126 115.7)
XYZ	xyz(76.7887, 91.5350, 43.7536)
Luminance	0.9153 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFFE99 #A899FE

analogous

#FEDB99 #EFFE99 #BDFE99

triadic

#EFFE99 #99EFFE #FE99EF

tetradic

#EFFE99 #99FEDB #A899FE #FE99BD

square

#EFFE99 #99FEDB #A899FE #FE99BD

split-complementary

#EFFE99 #99BDFE #DB99FE

monochromatic

#DCFD20 #E5FD5C #EFFE99 #F9FFD6 #FAFFE1

Accessibility & contrast

On white

1.09

#EFFE99 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

19.31

#EFFE99 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFFE99

19.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFFE99	#FFFFFF	#000000	##000000
##EFFE99	1.00	1.09	19.31	19.31
#FFFFFF	1.09	1.00	21.00	21.00
#000000	19.31	21.00	1.00	1.00
##000000	19.31	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF591

Deuteranopia (green-blind)

#FFF69E

Tritanopia (blue-blind)

#F9F4E5

Achromatopsia (no color)

#F5F5F5

Design tokens & code

CSS

--color: #effe99;
/* rgb */ color: rgb(239, 254, 153);
/* oklch */ color: oklch(96.4% 0.126 115.7);

Tailwind

colors: {
  custom: {
    50: '#f5feb8',
    500: '#effe99',
    950: '#000000',
  },
}

SCSS

$custom: #effe99;
$custom-light: #f5feb8;
$custom-dark: #000000;

JSON

{
  "hex": "#effe99",
  "rgb": {
    "r": 239,
    "g": 254,
    "b": 153
  },
  "hsl": {
    "h": 68.911,
    "s": 98.058,
    "l": 79.804
  },
  "oklch": {
    "l": 0.96401,
    "c": 0.12596,
    "h": 115.7
  },
  "luminance": 0.91534
}

Semantic roles & 50–950 ramp

primary

#EFFE99

secondary

#6F5BE0

accent

#00E622

background

#FFFFFD

surface

#FFFFF8

border

#D7D7D1

text

#171711

muted

#858581

Preview Lab

Preview with #EFFE99

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

Preview Lab → · Contrast checker → · Palette generator →