#ECF17A#ECF17A

#ECF17A is a very light, vivid yellow. Relative luminance 0.821; OKLCH L 93.0% C 0.143 H 111.0°. Best body text is #000000 at 17.43:1 contrast (WCAG AA passes).

Color values

HEX	#ECF17A
RGB	rgb(236, 241, 122)
HSL	hsl(63, 81%, 71%)
HSV	hsv(63, 49%, 95%)
CMYK	cmyk(2.1%, 0%, 49.4%, 5.5%)
CIE-LAB	lab(92.64, -17.69, 56.31)
CIE-LCH	lch(92.64, 59.02, 107.44°)
OKLab	oklab(93.04% -0.0511 0.133)
OKLCH	oklch(93.04% 0.143 111)
XYZ	xyz(69.5616, 82.1500, 30.6007)
Luminance	0.8215 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF17A #7F7AF1

analogous

#F1BA7A #ECF17A #B0F17A

triadic

#ECF17A #7AECF1 #F17AEC

tetradic

#ECF17A #7AF1BA #7F7AF1 #F17AB0

square

#ECF17A #7AF1BA #7F7AF1 #F17AB0

split-complementary

#ECF17A #7AB0F1 #BA7AF1

monochromatic

#D1DA17 #E4EB43 #ECF17A #F4F7B1 #FBFCE3

Accessibility & contrast

On white

1.20

#ECF17A on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.43

#ECF17A on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF17A

17.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF17A	#FFFFFF	#000000	##000000
##ECF17A	1.00	1.20	17.43	17.43
#FFFFFF	1.20	1.00	21.00	21.00
#000000	17.43	21.00	1.00	1.00
##000000	17.43	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE86F

Deuteranopia (green-blind)

#FFEC80

Tritanopia (blue-blind)

#F9E5D6

Achromatopsia (no color)

#EAEAEA

Design tokens & code

CSS

--color: #ecf17a;
/* rgb */ color: rgb(236, 241, 122);
/* oklch */ color: oklch(93.0% 0.143 111.0);

Tailwind

colors: {
  custom: {
    50: '#f4f5a3',
    500: '#ecf17a',
    950: '#000000',
  },
}

SCSS

$custom: #ecf17a;
$custom-light: #f4f5a3;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf17a",
  "rgb": {
    "r": 236,
    "g": 241,
    "b": 122
  },
  "hsl": {
    "h": 62.521,
    "s": 80.952,
    "l": 71.176
  },
  "oklch": {
    "l": 0.93041,
    "c": 0.14253,
    "h": 111
  },
  "luminance": 0.82149
}

Semantic roles & 50–950 ramp

primary

#ECF17A

secondary

#4A44CB

accent

#08DD11

background

#FFFFFC

surface

#FFFEF6

border

#D7D6D0

text

#17170F

muted

#858580

Preview Lab

Preview with #ECF17A

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

Preview Lab → · Contrast checker → · Palette generator →