#ECFF81#ECFF81

#ECFF81 is a very light, vivid yellow. Relative luminance 0.909; OKLCH L 96.1% C 0.152 H 116.4°. Best body text is #000000 at 19.19:1 contrast (WCAG AA passes).

Color values

HEX	#ECFF81
RGB	rgb(236, 255, 129)
HSL	hsl(69, 100%, 75%)
HSV	hsv(69, 49%, 100%)
CMYK	cmyk(7.5%, 0%, 49.4%, 0%)
CIE-LAB	lab(96.38, -23.79, 57.55)
CIE-LCH	lch(96.38, 62.27, 112.46°)
OKLab	oklab(96.06% -0.0678 0.1363)
OKLCH	oklch(96.06% 0.152 116.4)
XYZ	xyz(74.3155, 90.9386, 34.4026)
Luminance	0.9094 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECFF81 #9481FF

analogous

#FFD381 #ECFF81 #ADFF81

triadic

#ECFF81 #81ECFF #FF81EC

tetradic

#ECFF81 #81FFD3 #9481FF #FF81AD

square

#ECFF81 #81FFD3 #9481FF #FF81AD

split-complementary

#ECFF81 #81ADFF #D381FF

monochromatic

#DAFF07 #E3FF44 #ECFF81 #F5FFBE #FAFFE0

Accessibility & contrast

On white

1.09

#ECFF81 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

19.19

#ECFF81 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECFF81

19.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECFF81	#FFFFFF	#000000	##000000
##ECFF81	1.00	1.09	19.19	19.19
#FFFFFF	1.09	1.00	21.00	21.00
#000000	19.19	21.00	1.00	1.00
##000000	19.19	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF476

Deuteranopia (green-blind)

#FFF688

Tritanopia (blue-blind)

#F8F3E2

Achromatopsia (no color)

#F5F5F5

Design tokens & code

CSS

--color: #ecff81;
/* rgb */ color: rgb(236, 255, 129);
/* oklch */ color: oklch(96.1% 0.152 116.4);

Tailwind

colors: {
  custom: {
    50: '#f4ffa8',
    500: '#ecff81',
    950: '#000000',
  },
}

SCSS

$custom: #ecff81;
$custom-light: #f4ffa8;
$custom-dark: #000000;

JSON

{
  "hex": "#ecff81",
  "rgb": {
    "r": 236,
    "g": 255,
    "b": 129
  },
  "hsl": {
    "h": 69.048,
    "s": 100,
    "l": 75.294
  },
  "oklch": {
    "l": 0.96057,
    "c": 0.15226,
    "h": 116.4
  },
  "luminance": 0.90938
}

Semantic roles & 50–950 ramp

primary

#ECFF81

secondary

#5D46DE

accent

#00E623

background

#FFFFFD

surface

#FFFFF7

border

#D7D7D0

text

#171810

muted

#858681

Preview Lab

Preview with #ECFF81

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

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