#ECFC5D#ECFC5D

#ECFC5D is a very light, vivid yellow. Relative luminance 0.882; OKLCH L 95.1% C 0.179 H 114.7°. Best body text is #000000 at 18.65:1 contrast (WCAG AA passes).

Color values

HEX	#ECFC5D
RGB	rgb(236, 252, 93)
HSL	hsl(66, 96%, 68%)
HSV	hsv(66, 63%, 99%)
CMYK	cmyk(6.3%, 0%, 63.1%, 1.2%)
CIE-LAB	lab(95.26, -25.11, 71.65)
CIE-LCH	lch(95.26, 75.92, 109.31°)
OKLab	oklab(95.05% -0.0749 0.1626)
OKLCH	oklch(95.05% 0.179 114.7)
XYZ	xyz(71.3800, 88.2452, 23.6266)
Luminance	0.8824 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECFC5D #6D5DFC

analogous

#FCBD5D #ECFC5D #9CFC5D

triadic

#ECFC5D #5DECFC #FC5DEC

tetradic

#ECFC5D #5DFCBD #6D5DFC #FC5D9C

square

#ECFC5D #5DFCBD #6D5DFC #FC5D9C

split-complementary

#ECFC5D #5D9CFC #BD5DFC

monochromatic

#C5DB04 #E5FB21 #ECFC5D #F3FD99 #FAFED5

Accessibility & contrast

On white

1.13

#ECFC5D on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.65

#ECFC5D on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECFC5D

18.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECFC5D	#FFFFFF	#000000	##000000
##ECFC5D	1.00	1.13	18.65	18.65
#FFFFFF	1.13	1.00	21.00	21.00
#000000	18.65	21.00	1.00	1.00
##000000	18.65	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF048

Deuteranopia (green-blind)

#FFF368

Tritanopia (blue-blind)

#FAEEDB

Achromatopsia (no color)

#F1F1F1

Design tokens & code

CSS

--color: #ecfc5d;
/* rgb */ color: rgb(236, 252, 93);
/* oklch */ color: oklch(95.1% 0.179 114.7);

Tailwind

colors: {
  custom: {
    50: '#f5fd92',
    500: '#ecfc5d',
    950: '#000000',
  },
}

SCSS

$custom: #ecfc5d;
$custom-light: #f5fd92;
$custom-dark: #000000;

JSON

{
  "hex": "#ecfc5d",
  "rgb": {
    "r": 236,
    "g": 252,
    "b": 93
  },
  "hsl": {
    "h": 66.038,
    "s": 96.364,
    "l": 67.647
  },
  "oklch": {
    "l": 0.95053,
    "c": 0.17902,
    "h": 114.7
  },
  "luminance": 0.88244
}

Semantic roles & 50–950 ramp

primary

#ECFC5D

secondary

#3A29D4

accent

#00E617

background

#FFFFFC

surface

#FFFFF4

border

#D7D7CE

text

#17170D

muted

#85857F

Preview Lab

Preview with #ECFC5D

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

Preview Lab → · Contrast checker → · Palette generator →