#EEFF5B#EEFF5B

#EEFF5B is a very light, vivid yellow. Relative luminance 0.905; OKLCH L 95.8% C 0.183 H 115.0°. Best body text is #000000 at 19.09:1 contrast (WCAG AA passes).

Color values

HEX	#EEFF5B
RGB	rgb(238, 255, 91)
HSL	hsl(66, 100%, 68%)
HSV	hsv(66, 64%, 100%)
CMYK	cmyk(6.7%, 0%, 64.3%, 0%)
CIE-LAB	lab(96.18, -25.85, 73.43)
CIE-LCH	lch(96.18, 77.85, 109.39°)
OKLab	oklab(95.82% -0.0773 0.166)
OKLCH	oklch(95.82% 0.183 115)
XYZ	xyz(72.9100, 90.4537, 23.5140)
Luminance	0.9045 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EEFF5B #6C5BFF

analogous

#FFBE5B #EEFF5B #9CFF5B

triadic

#EEFF5B #5BEEFF #FF5BEE

tetradic

#EEFF5B #5BFFBE #6C5BFF #FF5B9C

square

#EEFF5B #5BFFBE #6C5BFF #FF5B9C

split-complementary

#EEFF5B #5B9CFF #BE5BFF

monochromatic

#C8E000 #E8FF1E #EEFF5B #F4FF98 #FBFFD5

Accessibility & contrast

On white

1.10

#EEFF5B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

19.09

#EEFF5B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EEFF5B

19.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EEFF5B	#FFFFFF	#000000	##000000
##EEFF5B	1.00	1.10	19.09	19.09
#FFFFFF	1.10	1.00	21.00	21.00
#000000	19.09	21.00	1.00	1.00
##000000	19.09	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF344

Deuteranopia (green-blind)

#FFF566

Tritanopia (blue-blind)

#FDF1DE

Achromatopsia (no color)

#F4F4F4

Design tokens & code

CSS

--color: #eeff5b;
/* rgb */ color: rgb(238, 255, 91);
/* oklch */ color: oklch(95.8% 0.183 115.0);

Tailwind

colors: {
  custom: {
    50: '#f7ff91',
    500: '#eeff5b',
    950: '#000000',
  },
}

SCSS

$custom: #eeff5b;
$custom-light: #f7ff91;
$custom-dark: #000000;

JSON

{
  "hex": "#eeff5b",
  "rgb": {
    "r": 238,
    "g": 255,
    "b": 91
  },
  "hsl": {
    "h": 66.22,
    "s": 100,
    "l": 67.843
  },
  "oklch": {
    "l": 0.95822,
    "c": 0.18313,
    "h": 115
  },
  "luminance": 0.90452
}

Semantic roles & 50–950 ramp

primary

#EEFF5B

secondary

#3926D8

accent

#00E618

background

#FFFFFC

surface

#FFFFF4

border

#D7D7CE

text

#18170D

muted

#86857F

Preview Lab

Preview with #EEFF5B

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

Preview Lab → · Contrast checker → · Palette generator →