#ECF683#ECF683

#ECF683 is a very light, vivid yellow. Relative luminance 0.854; OKLCH L 94.2% C 0.140 H 113.2°. Best body text is #000000 at 18.08:1 contrast (WCAG AA passes).

Color values

HEX	#ECF683
RGB	rgb(236, 246, 131)
HSL	hsl(65, 86%, 74%)
HSV	hsv(65, 47%, 96%)
CMYK	cmyk(4.1%, 0%, 46.7%, 3.5%)
CIE-LAB	lab(94.05, -19.30, 53.82)
CIE-LCH	lch(94.05, 57.18, 109.73°)
OKLab	oklab(94.2% -0.0549 0.1283)
OKLCH	oklch(94.2% 0.14 113.2)
XYZ	xyz(71.6457, 85.3842, 34.1749)
Luminance	0.8538 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF683 #8D83F6

analogous

#F6C783 #ECF683 #B3F683

triadic

#ECF683 #83ECF6 #F683EC

tetradic

#ECF683 #83F6C7 #8D83F6 #F683B3

square

#ECF683 #83F6C7 #8D83F6 #F683B3

split-complementary

#ECF683 #83B3F6 #C783F6

monochromatic

#DAED11 #E3F24A #ECF683 #F5FABC #FBFDE2

Accessibility & contrast

On white

1.16

#ECF683 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.08

#ECF683 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF683

18.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF683	#FFFFFF	#000000	##000000
##ECF683	1.00	1.16	18.08	18.08
#FFFFFF	1.16	1.00	21.00	21.00
#000000	18.08	21.00	1.00	1.00
##000000	18.08	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFED79

Deuteranopia (green-blind)

#FFEF89

Tritanopia (blue-blind)

#F8EADB

Achromatopsia (no color)

#EEEEEE

Design tokens & code

CSS

--color: #ecf683;
/* rgb */ color: rgb(236, 246, 131);
/* oklch */ color: oklch(94.2% 0.140 113.2);

Tailwind

colors: {
  custom: {
    50: '#f4f9a9',
    500: '#ecf683',
    950: '#000000',
  },
}

SCSS

$custom: #ecf683;
$custom-light: #f4f9a9;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf683",
  "rgb": {
    "r": 236,
    "g": 246,
    "b": 131
  },
  "hsl": {
    "h": 65.217,
    "s": 86.466,
    "l": 73.922
  },
  "oklch": {
    "l": 0.94197,
    "c": 0.13955,
    "h": 113.2
  },
  "luminance": 0.85383
}

Semantic roles & 50–950 ramp

primary

#ECF683

secondary

#564BD3

accent

#03E316

background

#FFFFFD

surface

#FFFFF7

border

#D7D7D0

text

#171710

muted

#858581

Preview Lab

Preview with #ECF683

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

Preview Lab → · Contrast checker → · Palette generator →