#ECFE4A#ECFE4A

#ECFE4A is a very light, vivid yellow. Relative luminance 0.892; OKLCH L 95.3% C 0.193 H 115.1°. Best body text is #000000 at 18.84:1 contrast (WCAG AA passes).

Color values

HEX	#ECFE4A
RGB	rgb(236, 254, 74)
HSL	hsl(66, 99%, 64%)
HSV	hsv(66, 71%, 100%)
CMYK	cmyk(7.1%, 0%, 70.9%, 0.4%)
CIE-LAB	lab(95.67, -27.08, 78.95)
CIE-LCH	lch(95.67, 83.47, 108.93°)
OKLab	oklab(95.34% -0.0822 0.1751)
OKLCH	oklch(95.34% 0.193 115.1)
XYZ	xyz(71.2718, 89.2121, 19.9424)
Luminance	0.8921 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECFE4A #5C4AFE

analogous

#FEB64A #ECFE4A #92FE4A

triadic

#ECFE4A #4AECFE #FE4AEC

tetradic

#ECFE4A #4AFEB6 #5C4AFE #FE4A92

square

#ECFE4A #4AFEB6 #5C4AFE #FE4A92

split-complementary

#ECFE4A #4A92FE #B64AFE

monochromatic

#B8CC01 #E6FE0D #ECFE4A #F2FE87 #F9FFC4

Accessibility & contrast

On white

1.11

#ECFE4A on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.84

#ECFE4A on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECFE4A

18.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECFE4A	#FFFFFF	#000000	##000000
##ECFE4A	1.00	1.11	18.84	18.84
#FFFFFF	1.11	1.00	21.00	21.00
#000000	18.84	21.00	1.00	1.00
##000000	18.84	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF128

Deuteranopia (green-blind)

#FFF459

Tritanopia (blue-blind)

#FBEFDB

Achromatopsia (no color)

#F3F3F3

Design tokens & code

CSS

--color: #ecfe4a;
/* rgb */ color: rgb(236, 254, 74);
/* oklch */ color: oklch(95.3% 0.193 115.1);

Tailwind

colors: {
  custom: {
    50: '#f6fe88',
    500: '#ecfe4a',
    950: '#000000',
  },
}

SCSS

$custom: #ecfe4a;
$custom-light: #f6fe88;
$custom-dark: #000000;

JSON

{
  "hex": "#ecfe4a",
  "rgb": {
    "r": 236,
    "g": 254,
    "b": 74
  },
  "hsl": {
    "h": 66,
    "s": 98.901,
    "l": 64.314
  },
  "oklch": {
    "l": 0.95338,
    "c": 0.19342,
    "h": 115.1
  },
  "luminance": 0.89211
}

Semantic roles & 50–950 ramp

primary

#ECFE4A

secondary

#3524C8

accent

#00E617

background

#FFFFFC

surface

#FFFFF4

border

#D7D7CE

text

#18170C

muted

#86857F

Preview Lab

Preview with #ECFE4A

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

Preview Lab → · Contrast checker → · Palette generator →