#ECFE99#ECFE99

#ECFE99 is a very light, vivid yellow-green. Relative luminance 0.910; OKLCH L 96.2% C 0.127 H 117.1°. Best body text is #000000 at 19.20:1 contrast (WCAG AA passes).

Color values

HEX	#ECFE99
RGB	rgb(236, 254, 153)
HSL	hsl(71, 98%, 80%)
HSV	hsv(71, 40%, 100%)
CMYK	cmyk(7.1%, 0%, 39.8%, 0.4%)
CIE-LAB	lab(96.42, -20.91, 46.29)
CIE-LCH	lch(96.42, 50.79, 114.31°)
OKLab	oklab(96.18% -0.0577 0.1128)
OKLCH	oklch(96.18% 0.127 117.1)
XYZ	xyz(75.7840, 91.0170, 43.7065)
Luminance	0.9102 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECFE99 #AB99FE

analogous

#FEDD99 #ECFE99 #BAFE99

triadic

#ECFE99 #99ECFE #FE99EC

tetradic

#ECFE99 #99FEDD #AB99FE #FE99BA

square

#ECFE99 #99FEDD #AB99FE #FE99BA

split-complementary

#ECFE99 #99BAFE #DD99FE

monochromatic

#D5FD20 #E1FD5C #ECFE99 #F7FFD6 #F9FFE1

Accessibility & contrast

On white

1.09

#ECFE99 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

19.20

#ECFE99 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECFE99

19.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECFE99	#FFFFFF	#000000	##000000
##ECFE99	1.00	1.09	19.20	19.20
#FFFFFF	1.09	1.00	21.00	21.00
#000000	19.20	21.00	1.00	1.00
##000000	19.20	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF491

Deuteranopia (green-blind)

#FFF59E

Tritanopia (blue-blind)

#F6F4E5

Achromatopsia (no color)

#F5F5F5

Design tokens & code

CSS

--color: #ecfe99;
/* rgb */ color: rgb(236, 254, 153);
/* oklch */ color: oklch(96.2% 0.127 117.1);

Tailwind

colors: {
  custom: {
    50: '#f3feb8',
    500: '#ecfe99',
    950: '#000000',
  },
}

SCSS

$custom: #ecfe99;
$custom-light: #f3feb8;
$custom-dark: #000000;

JSON

{
  "hex": "#ecfe99",
  "rgb": {
    "r": 236,
    "g": 254,
    "b": 153
  },
  "hsl": {
    "h": 70.693,
    "s": 98.058,
    "l": 79.804
  },
  "oklch": {
    "l": 0.96178,
    "c": 0.12671,
    "h": 117.1
  },
  "luminance": 0.91016
}

Semantic roles & 50–950 ramp

primary

#ECFE99

secondary

#735BE0

accent

#00E629

background

#FFFFFD

surface

#FEFFF8

border

#D6D7D1

text

#171711

muted

#858581

Preview Lab

Preview with #ECFE99

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

Preview Lab → · Contrast checker → · Palette generator →