#ECF783#ECF783

#ECF783 is a very light, vivid yellow. Relative luminance 0.860; OKLCH L 94.4% C 0.141 H 113.6°. Best body text is #000000 at 18.20:1 contrast (WCAG AA passes).

Color values

HEX	#ECF783
RGB	rgb(236, 247, 131)
HSL	hsl(66, 88%, 74%)
HSV	hsv(66, 47%, 97%)
CMYK	cmyk(4.5%, 0%, 47%, 3.1%)
CIE-LAB	lab(94.31, -19.78, 54.14)
CIE-LCH	lch(94.31, 57.64, 110.08°)
OKLab	oklab(94.41% -0.0562 0.129)
OKLCH	oklch(94.41% 0.141 113.6)
XYZ	xyz(71.9507, 85.9942, 34.2766)
Luminance	0.8599 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF783 #8E83F7

analogous

#F7C883 #ECF783 #B2F783

triadic

#ECF783 #83ECF7 #F783EC

tetradic

#ECF783 #83F7C8 #8E83F7 #F783B2

square

#ECF783 #83F7C8 #8E83F7 #F783B2

split-complementary

#ECF783 #83B2F7 #C883F7

monochromatic

#DAF010 #E3F34A #ECF783 #F5FBBC #FBFDE2

Accessibility & contrast

On white

1.15

#ECF783 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.20

#ECF783 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF783

18.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF783	#FFFFFF	#000000	##000000
##ECF783	1.00	1.15	18.20	18.20
#FFFFFF	1.15	1.00	21.00	21.00
#000000	18.20	21.00	1.00	1.00
##000000	18.20	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFED79

Deuteranopia (green-blind)

#FFF089

Tritanopia (blue-blind)

#F8EBDC

Achromatopsia (no color)

#EFEFEF

Design tokens & code

CSS

--color: #ecf783;
/* rgb */ color: rgb(236, 247, 131);
/* oklch */ color: oklch(94.4% 0.141 113.6);

Tailwind

colors: {
  custom: {
    50: '#f4f9a9',
    500: '#ecf783',
    950: '#000000',
  },
}

SCSS

$custom: #ecf783;
$custom-light: #f4f9a9;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf783",
  "rgb": {
    "r": 236,
    "g": 247,
    "b": 131
  },
  "hsl": {
    "h": 65.69,
    "s": 87.879,
    "l": 74.118
  },
  "oklch": {
    "l": 0.94406,
    "c": 0.14074,
    "h": 113.6
  },
  "luminance": 0.85993
}

Semantic roles & 50–950 ramp

primary

#ECF783

secondary

#574AD4

accent

#01E417

background

#FFFFFD

surface

#FFFFF7

border

#D7D7D0

text

#171710

muted

#858581

Preview Lab

Preview with #ECF783

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

Preview Lab → · Contrast checker → · Palette generator →