#ECF584#ECF584

#ECF584 is a very light, vivid yellow. Relative luminance 0.848; OKLCH L 94.0% C 0.137 H 112.8°. Best body text is #000000 at 17.96:1 contrast (WCAG AA passes).

Color values

HEX	#ECF584
RGB	rgb(236, 245, 132)
HSL	hsl(65, 85%, 74%)
HSV	hsv(65, 46%, 96%)
CMYK	cmyk(3.7%, 0%, 46.1%, 3.9%)
CIE-LAB	lab(93.80, -18.73, 53.05)
CIE-LCH	lch(93.80, 56.26, 109.44°)
OKLab	oklab(94% -0.0531 0.1267)
OKLCH	oklch(94% 0.137 112.8)
XYZ	xyz(71.4104, 84.8048, 34.4325)
Luminance	0.8480 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF584 #8D84F5

analogous

#F5C684 #ECF584 #B4F584

triadic

#ECF584 #84ECF5 #F584EC

tetradic

#ECF584 #84F5C6 #8D84F5 #F584B4

square

#ECF584 #84F5C6 #8D84F5 #F584B4

split-complementary

#ECF584 #84B4F5 #C684F5

monochromatic

#DAEB13 #E3F04B #ECF584 #F5FABD #FBFDE3

Accessibility & contrast

On white

1.17

#ECF584 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.96

#ECF584 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF584

17.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF584	#FFFFFF	#000000	##000000
##ECF584	1.00	1.17	17.96	17.96
#FFFFFF	1.17	1.00	21.00	21.00
#000000	17.96	21.00	1.00	1.00
##000000	17.96	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEC7A

Deuteranopia (green-blind)

#FFEF8A

Tritanopia (blue-blind)

#F8E9DB

Achromatopsia (no color)

#EDEDED

Design tokens & code

CSS

--color: #ecf584;
/* rgb */ color: rgb(236, 245, 132);
/* oklch */ color: oklch(94.0% 0.137 112.8);

Tailwind

colors: {
  custom: {
    50: '#f4f8aa',
    500: '#ecf584',
    950: '#000000',
  },
}

SCSS

$custom: #ecf584;
$custom-light: #f4f8aa;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf584",
  "rgb": {
    "r": 236,
    "g": 245,
    "b": 132
  },
  "hsl": {
    "h": 64.779,
    "s": 84.962,
    "l": 73.922
  },
  "oklch": {
    "l": 0.94002,
    "c": 0.13739,
    "h": 112.8
  },
  "luminance": 0.84804
}

Semantic roles & 50–950 ramp

primary

#ECF584

secondary

#564CD1

accent

#04E116

background

#FFFFFD

surface

#FFFEF7

border

#D7D6D0

text

#171710

muted

#858581

Preview Lab

Preview with #ECF584

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

Preview Lab → · Contrast checker → · Palette generator →