#ECF66D#ECF66D

#ECF66D is a very light, vivid yellow. Relative luminance 0.848; OKLCH L 93.9% C 0.160 H 112.9°. Best body text is #000000 at 17.97:1 contrast (WCAG AA passes).

Color values

HEX	#ECF66D
RGB	rgb(236, 246, 109)
HSL	hsl(64, 88%, 70%)
HSV	hsv(64, 56%, 96%)
CMYK	cmyk(4.1%, 0%, 55.7%, 3.5%)
CIE-LAB	lab(93.82, -21.16, 63.48)
CIE-LCH	lch(93.82, 66.91, 108.43°)
OKLab	oklab(93.94% -0.0622 0.1472)
OKLCH	oklch(93.94% 0.16 112.9)
XYZ	xyz(70.3097, 84.8499, 27.1389)
Luminance	0.8485 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF66D #776DF6

analogous

#F6BC6D #ECF66D #A7F66D

triadic

#ECF66D #6DECF6 #F66DEC

tetradic

#ECF66D #6DF6BC #776DF6 #F66DA7

square

#ECF66D #6DF6BC #776DF6 #F66DA7

split-complementary

#ECF66D #6DA7F6 #BC6DF6

monochromatic

#CCDB0E #E4F233 #ECF66D #F4FAA7 #FBFDE0

Accessibility & contrast

On white

1.17

#ECF66D on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.97

#ECF66D on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF66D

17.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF66D	#FFFFFF	#000000	##000000
##ECF66D	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)

#FFEC5F

Deuteranopia (green-blind)

#FFEF75

Tritanopia (blue-blind)

#FAE9D8

Achromatopsia (no color)

#EDEDED

Design tokens & code

CSS

--color: #ecf66d;
/* rgb */ color: rgb(236, 246, 109);
/* oklch */ color: oklch(93.9% 0.160 112.9);

Tailwind

colors: {
  custom: {
    50: '#f5f99b',
    500: '#ecf66d',
    950: '#000000',
  },
}

SCSS

$custom: #ecf66d;
$custom-light: #f5f99b;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf66d",
  "rgb": {
    "r": 236,
    "g": 246,
    "b": 109
  },
  "hsl": {
    "h": 64.38,
    "s": 88.387,
    "l": 69.608
  },
  "oklch": {
    "l": 0.93939,
    "c": 0.15985,
    "h": 112.9
  },
  "luminance": 0.84849
}

Semantic roles & 50–950 ramp

primary

#ECF66D

secondary

#4237D0

accent

#01E511

background

#FFFFFC

surface

#FFFFF5

border

#D7D7CF

text

#17170E

muted

#85857F

Preview Lab

Preview with #ECF66D

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

Preview Lab → · Contrast checker → · Palette generator →