#ECF66A#ECF66A

#ECF66A is a very light, vivid yellow. Relative luminance 0.848; OKLCH L 93.9% C 0.162 H 112.9°. Best body text is #000000 at 17.96:1 contrast (WCAG AA passes).

Color values

HEX	#ECF66A
RGB	rgb(236, 246, 106)
HSL	hsl(64, 89%, 69%)
HSV	hsv(64, 57%, 96%)
CMYK	cmyk(4.1%, 0%, 56.9%, 3.5%)
CIE-LAB	lab(93.79, -21.38, 64.74)
CIE-LCH	lch(93.79, 68.17, 108.28°)
OKLab	oklab(93.91% -0.0632 0.1496)
OKLCH	oklch(93.91% 0.162 112.9)
XYZ	xyz(70.1510, 84.7864, 26.3028)
Luminance	0.8478 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF66A #746AF6

analogous

#F6BA6A #ECF66A #A6F66A

triadic

#ECF66A #6AECF6 #F66AEC

tetradic

#ECF66A #6AF6BA #746AF6 #F66AA6

square

#ECF66A #6AF6BA #746AF6 #F66AA6

split-complementary

#ECF66A #6AA6F6 #BA6AF6

monochromatic

#CAD90D #E5F330 #ECF66A #F3F9A4 #FBFDDD

Accessibility & contrast

On white

1.17

#ECF66A on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.96

#ECF66A on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF66A

17.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF66A	#FFFFFF	#000000	##000000
##ECF66A	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)

#FFEC5B

Deuteranopia (green-blind)

#FFEF72

Tritanopia (blue-blind)

#FAE9D8

Achromatopsia (no color)

#EDEDED

Design tokens & code

CSS

--color: #ecf66a;
/* rgb */ color: rgb(236, 246, 106);
/* oklch */ color: oklch(93.9% 0.162 112.9);

Tailwind

colors: {
  custom: {
    50: '#f5f999',
    500: '#ecf66a',
    950: '#000000',
  },
}

SCSS

$custom: #ecf66a;
$custom-light: #f5f999;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf66a",
  "rgb": {
    "r": 236,
    "g": 246,
    "b": 106
  },
  "hsl": {
    "h": 64.286,
    "s": 88.608,
    "l": 69.02
  },
  "oklch": {
    "l": 0.93908,
    "c": 0.16237,
    "h": 112.9
  },
  "luminance": 0.84785
}

Semantic roles & 50–950 ramp

primary

#ECF66A

secondary

#4035D0

accent

#00E511

background

#FFFFFC

surface

#FFFFF5

border

#D7D7CF

text

#17170E

muted

#85857F

Preview Lab

Preview with #ECF66A

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

Preview Lab → · Contrast checker → · Palette generator →