#E9F578#E9F578

#E9F578 is a very light, vivid yellow. Relative luminance 0.840; OKLCH L 93.6% C 0.150 H 113.8°. Best body text is #000000 at 17.80:1 contrast (WCAG AA passes).

Color values

HEX	#E9F578
RGB	rgb(233, 245, 120)
HSL	hsl(66, 86%, 72%)
HSV	hsv(66, 51%, 96%)
CMYK	cmyk(4.9%, 0%, 51%, 3.9%)
CIE-LAB	lab(93.44, -20.97, 58.11)
CIE-LCH	lch(93.44, 61.78, 109.84°)
OKLab	oklab(93.62% -0.0605 0.1368)
OKLCH	oklch(93.62% 0.15 113.8)
XYZ	xyz(69.6481, 83.9856, 30.3075)
Luminance	0.8398 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#E9F578 #8478F5

analogous

#F5C378 #E9F578 #ABF578

triadic

#E9F578 #78E9F5 #F578E9

tetradic

#E9F578 #78F5C3 #8478F5 #F578AB

square

#E9F578 #78F5C3 #8478F5 #F578AB

split-complementary

#E9F578 #78ABF5 #C378F5

monochromatic

#CEE211 #E0F13F #E9F578 #F2F9B1 #FAFDE3

Accessibility & contrast

On white

1.18

#E9F578 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.80

#E9F578 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #E9F578

17.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##E9F578	#FFFFFF	#000000	##000000
##E9F578	1.00	1.18	17.80	17.80
#FFFFFF	1.18	1.00	21.00	21.00
#000000	17.80	21.00	1.00	1.00
##000000	17.80	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEB6C

Deuteranopia (green-blind)

#FFEE7F

Tritanopia (blue-blind)

#F6E9D9

Achromatopsia (no color)

#ECECEC

Design tokens & code

CSS

--color: #e9f578;
/* rgb */ color: rgb(233, 245, 120);
/* oklch */ color: oklch(93.6% 0.150 113.8);

Tailwind

colors: {
  custom: {
    50: '#f2f8a2',
    500: '#e9f578',
    950: '#000000',
  },
}

SCSS

$custom: #e9f578;
$custom-light: #f2f8a2;
$custom-dark: #000000;

JSON

{
  "hex": "#e9f578",
  "rgb": {
    "r": 233,
    "g": 245,
    "b": 120
  },
  "hsl": {
    "h": 65.76,
    "s": 86.207,
    "l": 71.569
  },
  "oklch": {
    "l": 0.9362,
    "c": 0.14959,
    "h": 113.8
  },
  "luminance": 0.83985
}

Semantic roles & 50–950 ramp

primary

#E9F578

secondary

#4F41D0

accent

#03E318

background

#FFFFFC

surface

#FEFEF6

border

#D6D6D0

text

#17170F

muted

#858580

Preview Lab

Preview with #E9F578

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

Preview Lab → · Contrast checker → · Palette generator →