#ECFF9B#ECFF9B

#ECFF9B is a very light, vivid yellow-green. Relative luminance 0.917; OKLCH L 96.4% C 0.126 H 117.6°. Best body text is #000000 at 19.34:1 contrast (WCAG AA passes).

Color values

HEX	#ECFF9B
RGB	rgb(236, 255, 155)
HSL	hsl(71, 100%, 80%)
HSV	hsv(71, 39%, 100%)
CMYK	cmyk(7.5%, 0%, 39.2%, 0%)
CIE-LAB	lab(96.71, -21.17, 45.69)
CIE-LCH	lch(96.71, 50.35, 114.86°)
OKLab	oklab(96.42% -0.0583 0.1115)
OKLCH	oklch(96.42% 0.126 117.6)
XYZ	xyz(76.2688, 91.7199, 44.6898)
Luminance	0.9172 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECFF9B #AE9BFF

analogous

#FFE09B #ECFF9B #BAFF9B

triadic

#ECFF9B #9BECFF #FF9BEC

tetradic

#ECFF9B #9BFFE0 #AE9BFF #FF9BBA

square

#ECFF9B #9BFFE0 #AE9BFF #FF9BBA

split-complementary

#ECFF9B #9BBAFF #E09BFF

monochromatic

#D5FF21 #E0FF5E #ECFF9B #F8FFD8 #F9FFE0

Accessibility & contrast

On white

1.09

#ECFF9B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

19.34

#ECFF9B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECFF9B

19.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECFF9B	#FFFFFF	#000000	##000000
##ECFF9B	1.00	1.09	19.34	19.34
#FFFFFF	1.09	1.00	21.00	21.00
#000000	19.34	21.00	1.00	1.00
##000000	19.34	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF593

Deuteranopia (green-blind)

#FFF6A0

Tritanopia (blue-blind)

#F6F5E6

Achromatopsia (no color)

#F5F5F5

Design tokens & code

CSS

--color: #ecff9b;
/* rgb */ color: rgb(236, 255, 155);
/* oklch */ color: oklch(96.4% 0.126 117.6);

Tailwind

colors: {
  custom: {
    50: '#f3ffba',
    500: '#ecff9b',
    950: '#000000',
  },
}

SCSS

$custom: #ecff9b;
$custom-light: #f3ffba;
$custom-dark: #000000;

JSON

{
  "hex": "#ecff9b",
  "rgb": {
    "r": 236,
    "g": 255,
    "b": 155
  },
  "hsl": {
    "h": 71.4,
    "s": 100,
    "l": 80.392
  },
  "oklch": {
    "l": 0.96417,
    "c": 0.12586,
    "h": 117.6
  },
  "luminance": 0.91719
}

Semantic roles & 50–950 ramp

primary

#ECFF9B

secondary

#755CE2

accent

#00E62C

background

#FFFFFD

surface

#FEFFF8

border

#D6D7D1

text

#171812

muted

#858682

Preview Lab

Preview with #ECFF9B

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

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