#ECF281#ECF281

#ECF281 is a very light, vivid yellow. Relative luminance 0.829; OKLCH L 93.3% C 0.137 H 111.5°. Best body text is #000000 at 17.58:1 contrast (WCAG AA passes).

Color values

HEX	#ECF281
RGB	rgb(236, 242, 129)
HSL	hsl(63, 81%, 73%)
HSV	hsv(63, 47%, 95%)
CMYK	cmyk(2.5%, 0%, 46.7%, 5.1%)
CIE-LAB	lab(92.98, -17.55, 53.46)
CIE-LCH	lch(92.98, 56.27, 108.17°)
OKLab	oklab(93.34% -0.0501 0.1274)
OKLCH	oklch(93.34% 0.137 111.5)
XYZ	xyz(70.3079, 82.9234, 33.0667)
Luminance	0.8292 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF281 #8781F2

analogous

#F2C081 #ECF281 #B3F281

triadic

#ECF281 #81ECF2 #F281EC

tetradic

#ECF281 #81F2C0 #8781F2 #F281B3

square

#ECF281 #81F2C0 #8781F2 #F281B3

split-complementary

#ECF281 #81B3F2 #C081F2

monochromatic

#D7E117 #E4EC4A #ECF281 #F4F8B8 #FBFCE3

Accessibility & contrast

On white

1.19

#ECF281 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.58

#ECF281 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF281

17.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF281	#FFFFFF	#000000	##000000
##ECF281	1.00	1.19	17.58	17.58
#FFFFFF	1.19	1.00	21.00	21.00
#000000	17.58	21.00	1.00	1.00
##000000	17.58	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE977

Deuteranopia (green-blind)

#FFEC87

Tritanopia (blue-blind)

#F9E6D8

Achromatopsia (no color)

#EBEBEB

Design tokens & code

CSS

--color: #ecf281;
/* rgb */ color: rgb(236, 242, 129);
/* oklch */ color: oklch(93.3% 0.137 111.5);

Tailwind

colors: {
  custom: {
    50: '#f4f6a8',
    500: '#ecf281',
    950: '#000000',
  },
}

SCSS

$custom: #ecf281;
$custom-light: #f4f6a8;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf281",
  "rgb": {
    "r": 236,
    "g": 242,
    "b": 129
  },
  "hsl": {
    "h": 63.186,
    "s": 81.295,
    "l": 72.745
  },
  "oklch": {
    "l": 0.93338,
    "c": 0.13687,
    "h": 111.5
  },
  "luminance": 0.82922
}

Semantic roles & 50–950 ramp

primary

#ECF281

secondary

#514ACD

accent

#08DE13

background

#FFFFFD

surface

#FFFEF7

border

#D7D6D0

text

#171710

muted

#858581

Preview Lab

Preview with #ECF281

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

Preview Lab → · Contrast checker → · Palette generator →