#ECF66E#ECF66E

#ECF66E is a very light, vivid yellow. Relative luminance 0.849; OKLCH L 93.9% C 0.159 H 112.9°. Best body text is #000000 at 17.97:1 contrast (WCAG AA passes).

Color values

HEX	#ECF66E
RGB	rgb(236, 246, 110)
HSL	hsl(64, 88%, 70%)
HSV	hsv(64, 55%, 96%)
CMYK	cmyk(4.1%, 0%, 55.3%, 3.5%)
CIE-LAB	lab(93.83, -21.08, 63.05)
CIE-LCH	lch(93.83, 66.48, 108.49°)
OKLab	oklab(93.95% -0.0619 0.1464)
OKLCH	oklch(93.95% 0.159 112.9)
XYZ	xyz(70.3639, 84.8715, 27.4240)
Luminance	0.8487 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF66E #786EF6

analogous

#F6BC6E #ECF66E #A8F66E

triadic

#ECF66E #6EECF6 #F66EEC

tetradic

#ECF66E #6EF6BC #786EF6 #F66EA8

square

#ECF66E #6EF6BC #786EF6 #F66EA8

split-complementary

#ECF66E #6EA8F6 #BC6EF6

monochromatic

#CDDC0E #E4F234 #ECF66E #F4FAA8 #FBFDE1

Accessibility & contrast

On white

1.17

#ECF66E on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.97

#ECF66E on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF66E

17.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF66E	#FFFFFF	#000000	##000000
##ECF66E	1.00	1.17	17.97	17.97
#FFFFFF	1.17	1.00	21.00	21.00
#000000	17.97	21.00	1.00	1.00
##000000	17.97	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEC60

Deuteranopia (green-blind)

#FFEF76

Tritanopia (blue-blind)

#FAE9D8

Achromatopsia (no color)

#EDEDED

Design tokens & code

CSS

--color: #ecf66e;
/* rgb */ color: rgb(236, 246, 110);
/* oklch */ color: oklch(93.9% 0.159 112.9);

Tailwind

colors: {
  custom: {
    50: '#f5f99c',
    500: '#ecf66e',
    950: '#000000',
  },
}

SCSS

$custom: #ecf66e;
$custom-light: #f5f99c;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf66e",
  "rgb": {
    "r": 236,
    "g": 246,
    "b": 110
  },
  "hsl": {
    "h": 64.412,
    "s": 88.312,
    "l": 69.804
  },
  "oklch": {
    "l": 0.93949,
    "c": 0.159,
    "h": 112.9
  },
  "luminance": 0.8487
}

Semantic roles & 50–950 ramp

primary

#ECF66E

secondary

#4338D0

accent

#01E511

background

#FFFFFC

surface

#FFFFF5

border

#D7D7CF

text

#17170E

muted

#85857F

Preview Lab

Preview with #ECF66E

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

Preview Lab → · Contrast checker → · Palette generator →