#ECF681#ECF681

#ECF681 is a very light, vivid yellow. Relative luminance 0.853; OKLCH L 94.2% C 0.142 H 113.1°. Best body text is #000000 at 18.07:1 contrast (WCAG AA passes).

Color values

HEX	#ECF681
RGB	rgb(236, 246, 129)
HSL	hsl(65, 87%, 74%)
HSV	hsv(65, 48%, 96%)
CMYK	cmyk(4.1%, 0%, 47.6%, 3.5%)
CIE-LAB	lab(94.03, -19.49, 54.72)
CIE-LCH	lch(94.03, 58.09, 109.60°)
OKLab	oklab(94.17% -0.0556 0.1301)
OKLCH	oklch(94.17% 0.142 113.1)
XYZ	xyz(71.5114, 85.3305, 33.4679)
Luminance	0.8533 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF681 #8B81F6

analogous

#F6C581 #ECF681 #B1F681

triadic

#ECF681 #81ECF6 #F681EC

tetradic

#ECF681 #81F6C5 #8B81F6 #F681B1

square

#ECF681 #81F6C5 #8B81F6 #F681B1

split-complementary

#ECF681 #81B1F6 #C581F6

monochromatic

#D9EC11 #E3F248 #ECF681 #F5FABA #FBFDE2

Accessibility & contrast

On white

1.16

#ECF681 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.07

#ECF681 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF681

18.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF681	#FFFFFF	#000000	##000000
##ECF681	1.00	1.16	18.07	18.07
#FFFFFF	1.16	1.00	21.00	21.00
#000000	18.07	21.00	1.00	1.00
##000000	18.07	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEC77

Deuteranopia (green-blind)

#FFEF87

Tritanopia (blue-blind)

#F9EADB

Achromatopsia (no color)

#EEEEEE

Design tokens & code

CSS

--color: #ecf681;
/* rgb */ color: rgb(236, 246, 129);
/* oklch */ color: oklch(94.2% 0.142 113.1);

Tailwind

colors: {
  custom: {
    50: '#f4f9a8',
    500: '#ecf681',
    950: '#000000',
  },
}

SCSS

$custom: #ecf681;
$custom-light: #f4f9a8;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf681",
  "rgb": {
    "r": 236,
    "g": 246,
    "b": 129
  },
  "hsl": {
    "h": 65.128,
    "s": 86.667,
    "l": 73.529
  },
  "oklch": {
    "l": 0.94171,
    "c": 0.14152,
    "h": 113.1
  },
  "luminance": 0.85329
}

Semantic roles & 50–950 ramp

primary

#ECF681

secondary

#5549D2

accent

#02E316

background

#FFFFFD

surface

#FFFFF7

border

#D7D7D0

text

#171710

muted

#858581

Preview Lab

Preview with #ECF681

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

Preview Lab → · Contrast checker → · Palette generator →