#ECFF90#ECFF90

#ECFF90 is a very light, vivid yellow-green. Relative luminance 0.914; OKLCH L 96.3% C 0.137 H 117.0°. Best body text is #000000 at 19.27:1 contrast (WCAG AA passes).

Color values

HEX	#ECFF90
RGB	rgb(236, 255, 144)
HSL	hsl(70, 100%, 78%)
HSV	hsv(70, 44%, 100%)
CMYK	cmyk(7.5%, 0%, 43.5%, 0%)
CIE-LAB	lab(96.56, -22.35, 50.78)
CIE-LCH	lch(96.56, 55.48, 113.75°)
OKLab	oklab(96.26% -0.0624 0.1224)
OKLCH	oklch(96.26% 0.137 117)
XYZ	xyz(75.3867, 91.3671, 40.0444)
Luminance	0.9137 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECFF90 #A390FF

analogous

#FFDA90 #ECFF90 #B4FF90

triadic

#ECFF90 #90ECFF #FF90EC

tetradic

#ECFF90 #90FFDA #A390FF #FF90B4

square

#ECFF90 #90FFDA #A390FF #FF90B4

split-complementary

#ECFF90 #90B4FF #DA90FF

monochromatic

#D7FF16 #E2FF53 #ECFF90 #F6FFCD #FAFFE0

Accessibility & contrast

On white

1.09

#ECFF90 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

19.27

#ECFF90 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECFF90

19.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECFF90	#FFFFFF	#000000	##000000
##ECFF90	1.00	1.09	19.27	19.27
#FFFFFF	1.09	1.00	21.00	21.00
#000000	19.27	21.00	1.00	1.00
##000000	19.27	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF587

Deuteranopia (green-blind)

#FFF696

Tritanopia (blue-blind)

#F7F4E5

Achromatopsia (no color)

#F5F5F5

Design tokens & code

CSS

--color: #ecff90;
/* rgb */ color: rgb(236, 255, 144);
/* oklch */ color: oklch(96.3% 0.137 117.0);

Tailwind

colors: {
  custom: {
    50: '#f4ffb2',
    500: '#ecff90',
    950: '#000000',
  },
}

SCSS

$custom: #ecff90;
$custom-light: #f4ffb2;
$custom-dark: #000000;

JSON

{
  "hex": "#ecff90",
  "rgb": {
    "r": 236,
    "g": 255,
    "b": 144
  },
  "hsl": {
    "h": 70.27,
    "s": 100,
    "l": 78.235
  },
  "oklch": {
    "l": 0.96255,
    "c": 0.13744,
    "h": 117
  },
  "luminance": 0.91366
}

Semantic roles & 50–950 ramp

primary

#ECFF90

secondary

#6B53E1

accent

#00E627

background

#FFFFFD

surface

#FEFFF8

border

#D6D7D1

text

#171811

muted

#858681

Preview Lab

Preview with #ECFF90

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

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