#ECFF6D#ECFF6D

#ECFF6D is a very light, vivid yellow. Relative luminance 0.905; OKLCH L 95.8% C 0.170 H 115.9°. Best body text is #000000 at 19.09:1 contrast (WCAG AA passes).

Color values

HEX	#ECFF6D
RGB	rgb(236, 255, 109)
HSL	hsl(68, 100%, 71%)
HSV	hsv(68, 57%, 100%)
CMYK	cmyk(7.5%, 0%, 57.3%, 0%)
CIE-LAB	lab(96.19, -25.43, 66.13)
CIE-LCH	lch(96.19, 70.85, 111.03°)
OKLab	oklab(95.83% -0.0743 0.1529)
OKLCH	oklch(95.83% 0.17 115.9)
XYZ	xyz(73.1138, 90.4579, 28.0736)
Luminance	0.9046 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECFF6D #806DFF

analogous

#FFC96D #ECFF6D #A3FF6D

triadic

#ECFF6D #6DECFF #FF6DEC

tetradic

#ECFF6D #6DFFC9 #806DFF #FF6DA3

square

#ECFF6D #6DFFC9 #806DFF #FF6DA3

split-complementary

#ECFF6D #6DA3FF #C96DFF

monochromatic

#D2F200 #E4FF30 #ECFF6D #F4FFAA #FBFFE0

Accessibility & contrast

On white

1.10

#ECFF6D on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

19.09

#ECFF6D on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECFF6D

19.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECFF6D	#FFFFFF	#000000	##000000
##ECFF6D	1.00	1.10	19.09	19.09
#FFFFFF	1.10	1.00	21.00	21.00
#000000	19.09	21.00	1.00	1.00
##000000	19.09	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF35D

Deuteranopia (green-blind)

#FFF576

Tritanopia (blue-blind)

#F9F2E0

Achromatopsia (no color)

#F4F4F4

Design tokens & code

CSS

--color: #ecff6d;
/* rgb */ color: rgb(236, 255, 109);
/* oklch */ color: oklch(95.8% 0.170 115.9);

Tailwind

colors: {
  custom: {
    50: '#f5ff9c',
    500: '#ecff6d',
    950: '#000000',
  },
}

SCSS

$custom: #ecff6d;
$custom-light: #f5ff9c;
$custom-dark: #000000;

JSON

{
  "hex": "#ecff6d",
  "rgb": {
    "r": 236,
    "g": 255,
    "b": 109
  },
  "hsl": {
    "h": 67.808,
    "s": 100,
    "l": 71.373
  },
  "oklch": {
    "l": 0.95834,
    "c": 0.16999,
    "h": 115.9
  },
  "luminance": 0.90457
}

Semantic roles & 50–950 ramp

primary

#ECFF6D

secondary

#4B35DB

accent

#00E61E

background

#FFFFFC

surface

#FFFFF5

border

#D7D7CF

text

#17170E

muted

#85857F

Preview Lab

Preview with #ECFF6D

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

Preview Lab → · Contrast checker → · Palette generator →