#ECFB81#ECFB81

#ECFB81 is a very light, vivid yellow. Relative luminance 0.884; OKLCH L 95.2% C 0.147 H 115.0°. Best body text is #000000 at 18.68:1 contrast (WCAG AA passes).

Color values

HEX	#ECFB81
RGB	rgb(236, 251, 129)
HSL	hsl(67, 94%, 75%)
HSV	hsv(67, 49%, 98%)
CMYK	cmyk(6%, 0%, 48.6%, 1.6%)
CIE-LAB	lab(95.33, -21.89, 56.29)
CIE-LCH	lch(95.33, 60.40, 111.25°)
OKLab	oklab(95.22% -0.0624 0.1336)
OKLCH	oklch(95.22% 0.147 115)
XYZ	xyz(73.0528, 88.4132, 33.9817)
Luminance	0.8841 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECFB81 #9081FB

analogous

#FBCD81 #ECFB81 #AFFB81

triadic

#ECFB81 #81ECFB #FB81EC

tetradic

#ECFB81 #81FBCD #9081FB #FB81AF

square

#ECFB81 #81FBCD #9081FB #FB81AF

split-complementary

#ECFB81 #81AFFB #CD81FB

monochromatic

#DAF70A #E3F946 #ECFB81 #F5FDBC #FBFEE1

Accessibility & contrast

On white

1.12

#ECFB81 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.68

#ECFB81 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECFB81

18.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECFB81	#FFFFFF	#000000	##000000
##ECFB81	1.00	1.12	18.68	18.68
#FFFFFF	1.12	1.00	21.00	21.00
#000000	18.68	21.00	1.00	1.00
##000000	18.68	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF176

Deuteranopia (green-blind)

#FFF387

Tritanopia (blue-blind)

#F8EFDF

Achromatopsia (no color)

#F2F2F2

Design tokens & code

CSS

--color: #ecfb81;
/* rgb */ color: rgb(236, 251, 129);
/* oklch */ color: oklch(95.2% 0.147 115.0);

Tailwind

colors: {
  custom: {
    50: '#f4fca8',
    500: '#ecfb81',
    950: '#000000',
  },
}

SCSS

$custom: #ecfb81;
$custom-light: #f4fca8;
$custom-dark: #000000;

JSON

{
  "hex": "#ecfb81",
  "rgb": {
    "r": 236,
    "g": 251,
    "b": 129
  },
  "hsl": {
    "h": 67.377,
    "s": 93.846,
    "l": 74.51
  },
  "oklch": {
    "l": 0.95217,
    "c": 0.14745,
    "h": 115
  },
  "luminance": 0.88412
}

Semantic roles & 50–950 ramp

primary

#ECFB81

secondary

#5947D9

accent

#00E61C

background

#FFFFFD

surface

#FFFFF7

border

#D7D7D0

text

#171710

muted

#858581

Preview Lab

Preview with #ECFB81

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

Preview Lab → · Contrast checker → · Palette generator →