#ECFC78#ECFC78

#ECFC78 is a very light, vivid yellow. Relative luminance 0.888; OKLCH L 95.3% C 0.157 H 115.2°. Best body text is #000000 at 18.76:1 contrast (WCAG AA passes).

Color values

HEX	#ECFC78
RGB	rgb(236, 252, 120)
HSL	hsl(67, 96%, 73%)
HSV	hsv(67, 52%, 99%)
CMYK	cmyk(6.3%, 0%, 52.4%, 1.2%)
CIE-LAB	lab(95.50, -23.15, 60.57)
CIE-LCH	lch(95.50, 64.84, 110.91°)
OKLab	oklab(95.32% -0.0668 0.1421)
OKLCH	oklch(95.32% 0.157 115.2)
XYZ	xyz(72.7939, 88.8107, 31.0731)
Luminance	0.8881 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECFC78 #8878FC

analogous

#FCCA78 #ECFC78 #AAFC78

triadic

#ECFC78 #78ECFC #FC78EC

tetradic

#ECFC78 #78FCCA #8878FC #FC78AA

square

#ECFC78 #78FCCA #8878FC #FC78AA

split-complementary

#ECFC78 #78AAFC #CA78FC

monochromatic

#D7F405 #E4FB3C #ECFC78 #F4FDB4 #FBFEE1

Accessibility & contrast

On white

1.12

#ECFC78 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.76

#ECFC78 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECFC78

18.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECFC78	#FFFFFF	#000000	##000000
##ECFC78	1.00	1.12	18.76	18.76
#FFFFFF	1.12	1.00	21.00	21.00
#000000	18.76	21.00	1.00	1.00
##000000	18.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF16B

Deuteranopia (green-blind)

#FFF37F

Tritanopia (blue-blind)

#F9F0DE

Achromatopsia (no color)

#F2F2F2

Design tokens & code

CSS

--color: #ecfc78;
/* rgb */ color: rgb(236, 252, 120);
/* oklch */ color: oklch(95.3% 0.157 115.2);

Tailwind

colors: {
  custom: {
    50: '#f4fda2',
    500: '#ecfc78',
    950: '#000000',
  },
}

SCSS

$custom: #ecfc78;
$custom-light: #f4fda2;
$custom-dark: #000000;

JSON

{
  "hex": "#ecfc78",
  "rgb": {
    "r": 236,
    "g": 252,
    "b": 120
  },
  "hsl": {
    "h": 67.273,
    "s": 95.652,
    "l": 72.941
  },
  "oklch": {
    "l": 0.95319,
    "c": 0.15703,
    "h": 115.2
  },
  "luminance": 0.8881
}

Semantic roles & 50–950 ramp

primary

#ECFC78

secondary

#523FD9

accent

#00E61C

background

#FFFFFC

surface

#FFFFF6

border

#D7D7D0

text

#17170F

muted

#858580

Preview Lab

Preview with #ECFC78

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

Preview Lab → · Contrast checker → · Palette generator →