#ECFFB1#ECFFB1

#ECFFB1 is a very light, moderate yellow-green. Relative luminance 0.925; OKLCH L 96.8% C 0.101 H 119.5°. Best body text is #000000 at 19.51:1 contrast (WCAG AA passes).

Color values

HEX	#ECFFB1
RGB	rgb(236, 255, 177)
HSL	hsl(75, 100%, 85%)
HSV	hsv(75, 31%, 100%)
CMYK	cmyk(7.5%, 0%, 30.6%, 0%)
CIE-LAB	lab(97.04, -18.53, 35.30)
CIE-LCH	lch(97.04, 39.87, 117.70°)
OKLab	oklab(96.79% -0.0498 0.0881)
OKLCH	oklch(96.79% 0.101 119.5)
XYZ	xyz(78.2875, 92.5274, 55.3217)
Luminance	0.9253 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECFFB1 #C4B1FF

analogous

#FFEBB1 #ECFFB1 #C5FFB1

triadic

#ECFFB1 #B1ECFF #FFB1EC

tetradic

#ECFFB1 #B1FFEB #C4B1FF #FFB1C5

square

#ECFFB1 #B1FFEB #C4B1FF #FFB1C5

split-complementary

#ECFFB1 #B1C5FF #EBB1FF

monochromatic

#CEFF37 #DDFF74 #ECFFB1 #F8FFE0 #F8FFE0

Accessibility & contrast

On white

1.08

#ECFFB1 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

19.51

#ECFFB1 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECFFB1

19.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECFFB1	#FFFFFF	#000000	##000000
##ECFFB1	1.00	1.08	19.51	19.51
#FFFFFF	1.08	1.00	21.00	21.00
#000000	19.51	21.00	1.00	1.00
##000000	19.51	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF7AC

Deuteranopia (green-blind)

#FFF7B4

Tritanopia (blue-blind)

#F3F7EB

Achromatopsia (no color)

#F6F6F6

Design tokens & code

CSS

--color: #ecffb1;
/* rgb */ color: rgb(236, 255, 177);
/* oklch */ color: oklch(96.8% 0.101 119.5);

Tailwind

colors: {
  custom: {
    50: '#f3ffc9',
    500: '#ecffb1',
    950: '#000000',
  },
}

SCSS

$custom: #ecffb1;
$custom-light: #f3ffc9;
$custom-dark: #000000;

JSON

{
  "hex": "#ecffb1",
  "rgb": {
    "r": 236,
    "g": 255,
    "b": 177
  },
  "hsl": {
    "h": 74.615,
    "s": 100,
    "l": 84.706
  },
  "oklch": {
    "l": 0.96788,
    "c": 0.10122,
    "h": 119.5
  },
  "luminance": 0.92527
}

Semantic roles & 50–950 ramp

primary

#ECFFB1

secondary

#8C6FE6

accent

#00E638

background

#FFFFFD

surface

#FEFFF9

border

#D6D7D2

text

#171813

muted

#858682

Preview Lab

Preview with #ECFFB1

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

Preview Lab → · Contrast checker → · Palette generator →