#ECF573#ECF573

#ECF573 is a very light, vivid yellow. Relative luminance 0.844; OKLCH L 93.8% C 0.153 H 112.6°. Best body text is #000000 at 17.88:1 contrast (WCAG AA passes).

Color values

HEX	#ECF573
RGB	rgb(236, 245, 115)
HSL	hsl(64, 87%, 71%)
HSV	hsv(64, 53%, 96%)
CMYK	cmyk(3.7%, 0%, 53.1%, 3.9%)
CIE-LAB	lab(93.61, -20.21, 60.61)
CIE-LCH	lch(93.61, 63.89, 108.44°)
OKLab	oklab(93.79% -0.059 0.1417)
OKLCH	oklch(93.79% 0.154 112.6)
XYZ	xyz(70.3405, 84.3768, 28.7972)
Luminance	0.8438 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF573 #7C73F5

analogous

#F5BD73 #ECF573 #ABF573

triadic

#ECF573 #73ECF5 #F573EC

tetradic

#ECF573 #73F5BD #7C73F5 #F573AB

square

#ECF573 #73F5BD #7C73F5 #F573AB

split-complementary

#ECF573 #73ABF5 #BD73F5

monochromatic

#D0DE10 #E4F13A #ECF573 #F4F9AC #FBFDE2

Accessibility & contrast

On white

1.17

#ECF573 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.88

#ECF573 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF573

17.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF573	#FFFFFF	#000000	##000000
##ECF573	1.00	1.17	17.88	17.88
#FFFFFF	1.17	1.00	21.00	21.00
#000000	17.88	21.00	1.00	1.00
##000000	17.88	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEB66

Deuteranopia (green-blind)

#FFEE7A

Tritanopia (blue-blind)

#FAE8D8

Achromatopsia (no color)

#EDEDED

Design tokens & code

CSS

--color: #ecf573;
/* rgb */ color: rgb(236, 245, 115);
/* oklch */ color: oklch(93.8% 0.153 112.6);

Tailwind

colors: {
  custom: {
    50: '#f4f89f',
    500: '#ecf573',
    950: '#000000',
  },
}

SCSS

$custom: #ecf573;
$custom-light: #f4f89f;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf573",
  "rgb": {
    "r": 236,
    "g": 245,
    "b": 115
  },
  "hsl": {
    "h": 64.154,
    "s": 86.667,
    "l": 70.588
  },
  "oklch": {
    "l": 0.93794,
    "c": 0.1535,
    "h": 112.6
  },
  "luminance": 0.84375
}

Semantic roles & 50–950 ramp

primary

#ECF573

secondary

#473DCF

accent

#02E312

background

#FFFFFC

surface

#FFFEF5

border

#D7D6CF

text

#17170F

muted

#858580

Preview Lab

Preview with #ECF573

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

Preview Lab → · Contrast checker → · Palette generator →