#ECF483#ECF483

#ECF483 is a very light, vivid yellow. Relative luminance 0.842; OKLCH L 93.8% C 0.137 H 112.3°. Best body text is #000000 at 17.83:1 contrast (WCAG AA passes).

Color values

HEX	#ECF483
RGB	rgb(236, 244, 131)
HSL	hsl(64, 84%, 74%)
HSV	hsv(64, 46%, 96%)
CMYK	cmyk(3.3%, 0%, 46.3%, 4.3%)
CIE-LAB	lab(93.53, -18.34, 53.19)
CIE-LCH	lch(93.53, 56.26, 109.02°)
OKLab	oklab(93.78% -0.0521 0.1269)
OKLCH	oklch(93.78% 0.137 112.3)
XYZ	xyz(71.0406, 84.1742, 33.9732)
Luminance	0.8417 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF483 #8B83F4

analogous

#F4C383 #ECF483 #B3F483

triadic

#ECF483 #83ECF4 #F483EC

tetradic

#ECF483 #83F4C3 #8B83F4 #F483B3

square

#ECF483 #83F4C3 #8B83F4 #F483B3

split-complementary

#ECF483 #83B3F4 #C383F4

monochromatic

#D9E815 #E3EF4B #ECF483 #F5F9BB #FBFDE3

Accessibility & contrast

On white

1.18

#ECF483 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.83

#ECF483 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF483

17.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF483	#FFFFFF	#000000	##000000
##ECF483	1.00	1.18	17.83	17.83
#FFFFFF	1.18	1.00	21.00	21.00
#000000	17.83	21.00	1.00	1.00
##000000	17.83	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEB79

Deuteranopia (green-blind)

#FFEE89

Tritanopia (blue-blind)

#F9E8DA

Achromatopsia (no color)

#ECECEC

Design tokens & code

CSS

--color: #ecf483;
/* rgb */ color: rgb(236, 244, 131);
/* oklch */ color: oklch(93.8% 0.137 112.3);

Tailwind

colors: {
  custom: {
    50: '#f4f7a9',
    500: '#ecf483',
    950: '#000000',
  },
}

SCSS

$custom: #ecf483;
$custom-light: #f4f7a9;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf483",
  "rgb": {
    "r": 236,
    "g": 244,
    "b": 131
  },
  "hsl": {
    "h": 64.248,
    "s": 83.704,
    "l": 73.529
  },
  "oklch": {
    "l": 0.9378,
    "c": 0.13721,
    "h": 112.3
  },
  "luminance": 0.84173
}

Semantic roles & 50–950 ramp

primary

#ECF483

secondary

#554BD0

accent

#05E015

background

#FFFFFD

surface

#FFFEF7

border

#D7D6D0

text

#171710

muted

#858581

Preview Lab

Preview with #ECF483

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

Preview Lab → · Contrast checker → · Palette generator →