#ECFC9A#ECFC9A

#ECFC9A is a very light, vivid yellow. Relative luminance 0.898; OKLCH L 95.8% C 0.123 H 116.4°. Best body text is #000000 at 18.96:1 contrast (WCAG AA passes).

Color values

HEX	#ECFC9A
RGB	rgb(236, 252, 154)
HSL	hsl(70, 94%, 80%)
HSV	hsv(70, 39%, 99%)
CMYK	cmyk(6.3%, 0%, 38.9%, 1.2%)
CIE-LAB	lab(95.91, -19.84, 45.16)
CIE-LCH	lch(95.91, 49.33, 113.72°)
OKLab	oklab(95.78% -0.0546 0.1103)
OKLCH	oklch(95.78% 0.123 116.4)
XYZ	xyz(75.2356, 89.7874, 43.9328)
Luminance	0.8979 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECFC9A #AA9AFC

analogous

#FCDB9A #ECFC9A #BBFC9A

triadic

#ECFC9A #9AECFC #FC9AEC

tetradic

#ECFC9A #9AFCDB #AA9AFC #FC9ABB

square

#ECFC9A #9AFCDB #AA9AFC #FC9ABB

split-complementary

#ECFC9A #9ABBFC #DB9AFC

monochromatic

#D6F823 #E1FA5F #ECFC9A #F7FED5 #F9FEE1

Accessibility & contrast

On white

1.11

#ECFC9A on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.96

#ECFC9A on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECFC9A

18.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECFC9A	#FFFFFF	#000000	##000000
##ECFC9A	1.00	1.11	18.96	18.96
#FFFFFF	1.11	1.00	21.00	21.00
#000000	18.96	21.00	1.00	1.00
##000000	18.96	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF393

Deuteranopia (green-blind)

#FFF49F

Tritanopia (blue-blind)

#F6F2E4

Achromatopsia (no color)

#F3F3F3

Design tokens & code

CSS

--color: #ecfc9a;
/* rgb */ color: rgb(236, 252, 154);
/* oklch */ color: oklch(95.8% 0.123 116.4);

Tailwind

colors: {
  custom: {
    50: '#f3fdb9',
    500: '#ecfc9a',
    950: '#000000',
  },
}

SCSS

$custom: #ecfc9a;
$custom-light: #f3fdb9;
$custom-dark: #000000;

JSON

{
  "hex": "#ecfc9a",
  "rgb": {
    "r": 236,
    "g": 252,
    "b": 154
  },
  "hsl": {
    "h": 69.796,
    "s": 94.231,
    "l": 79.608
  },
  "oklch": {
    "l": 0.95777,
    "c": 0.12305,
    "h": 116.4
  },
  "luminance": 0.89787
}

Semantic roles & 50–950 ramp

primary

#ECFC9A

secondary

#725DDE

accent

#00E625

background

#FFFFFD

surface

#FEFFF8

border

#D6D7D1

text

#171711

muted

#858581

Preview Lab

Preview with #ECFC9A

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

Preview Lab → · Contrast checker → · Palette generator →