#EEFF40#EEFF40

#EEFF40 is a very light, vivid yellow. Relative luminance 0.901; OKLCH L 95.6% C 0.199 H 114.8°. Best body text is #000000 at 19.01:1 contrast (WCAG AA passes).

Color values

HEX	#EEFF40
RGB	rgb(238, 255, 64)
HSL	hsl(65, 100%, 63%)
HSV	hsv(65, 75%, 100%)
CMYK	cmyk(6.7%, 0%, 74.9%, 0%)
CIE-LAB	lab(96.03, -27.18, 82.48)
CIE-LCH	lch(96.03, 86.85, 108.24°)
OKLab	oklab(95.64% -0.0834 0.1809)
OKLCH	oklch(95.64% 0.199 114.8)
XYZ	xyz(71.9474, 90.0686, 18.4444)
Luminance	0.9007 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EEFF40 #5140FF

analogous

#FFB040 #EEFF40 #8FFF40

triadic

#EEFF40 #40EEFF #FF40EE

tetradic

#EEFF40 #40FFB0 #5140FF #FF408F

square

#EEFF40 #40FFB0 #5140FF #FF408F

split-complementary

#EEFF40 #408FFF #B040FF

monochromatic

#B3C500 #E9FF03 #EEFF40 #F3FF7D #F9FFBA

Accessibility & contrast

On white

1.10

#EEFF40 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

19.01

#EEFF40 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EEFF40

19.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EEFF40	#FFFFFF	#000000	##000000
##EEFF40	1.00	1.10	19.01	19.01
#FFFFFF	1.10	1.00	21.00	21.00
#000000	19.01	21.00	1.00	1.00
##000000	19.01	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF208

Deuteranopia (green-blind)

#FFF551

Tritanopia (blue-blind)

#FEF0DB

Achromatopsia (no color)

#F4F4F4

Design tokens & code

CSS

--color: #eeff40;
/* rgb */ color: rgb(238, 255, 64);
/* oklch */ color: oklch(95.6% 0.199 114.8);

Tailwind

colors: {
  custom: {
    50: '#f8ff83',
    500: '#eeff40',
    950: '#000000',
  },
}

SCSS

$custom: #eeff40;
$custom-light: #f8ff83;
$custom-dark: #000000;

JSON

{
  "hex": "#eeff40",
  "rgb": {
    "r": 238,
    "g": 255,
    "b": 64
  },
  "hsl": {
    "h": 65.34,
    "s": 100,
    "l": 62.549
  },
  "oklch": {
    "l": 0.95643,
    "c": 0.19915,
    "h": 114.8
  },
  "luminance": 0.90067
}

Semantic roles & 50–950 ramp

primary

#EEFF40

secondary

#3022C1

accent

#00E614

background

#FFFFFC

surface

#FFFFF4

border

#D7D7CE

text

#18170C

muted

#86857F

Preview Lab

Preview with #EEFF40

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

Preview Lab → · Contrast checker → · Palette generator →