#ECF287#ECF287

#ECF287 is a very light, vivid yellow. Relative luminance 0.831; OKLCH L 93.4% C 0.131 H 111.5°. Best body text is #000000 at 17.62:1 contrast (WCAG AA passes).

Color values

HEX	#ECF287
RGB	rgb(236, 242, 135)
HSL	hsl(63, 80%, 74%)
HSV	hsv(63, 44%, 95%)
CMYK	cmyk(2.5%, 0%, 44.2%, 5.1%)
CIE-LAB	lab(93.05, -16.98, 50.72)
CIE-LCH	lch(93.05, 53.49, 108.51°)
OKLab	oklab(93.42% -0.0479 0.1217)
OKLCH	oklch(93.42% 0.131 111.5)
XYZ	xyz(70.7185, 83.0877, 35.2291)
Luminance	0.8309 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF287 #8D87F2

analogous

#F2C387 #ECF287 #B7F287

triadic

#ECF287 #87ECF2 #F287EC

tetradic

#ECF287 #87F2C3 #8D87F2 #F287B7

square

#ECF287 #87F2C3 #8D87F2 #F287B7

split-complementary

#ECF287 #87B7F2 #C387F2

monochromatic

#DAE619 #E3EC50 #ECF287 #F5F8BE #FBFCE3

Accessibility & contrast

On white

1.19

#ECF287 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.62

#ECF287 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF287

17.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF287	#FFFFFF	#000000	##000000
##ECF287	1.00	1.19	17.62	17.62
#FFFFFF	1.19	1.00	21.00	21.00
#000000	17.62	21.00	1.00	1.00
##000000	17.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE97E

Deuteranopia (green-blind)

#FFED8C

Tritanopia (blue-blind)

#F8E7D9

Achromatopsia (no color)

#EBEBEB

Design tokens & code

CSS

--color: #ecf287;
/* rgb */ color: rgb(236, 242, 135);
/* oklch */ color: oklch(93.4% 0.131 111.5);

Tailwind

colors: {
  custom: {
    50: '#f4f6ac',
    500: '#ecf287',
    950: '#000000',
  },
}

SCSS

$custom: #ecf287;
$custom-light: #f4f6ac;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf287",
  "rgb": {
    "r": 236,
    "g": 242,
    "b": 135
  },
  "hsl": {
    "h": 63.364,
    "s": 80.451,
    "l": 73.922
  },
  "oklch": {
    "l": 0.93418,
    "c": 0.13082,
    "h": 111.5
  },
  "luminance": 0.83086
}

Semantic roles & 50–950 ramp

primary

#ECF287

secondary

#564FCE

accent

#09DD15

background

#FFFFFD

surface

#FFFEF7

border

#D7D6D0

text

#171710

muted

#858581

Preview Lab

Preview with #ECF287

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

Preview Lab → · Contrast checker → · Palette generator →