#ECF688#ECF688

#ECF688 is a very light, vivid yellow. Relative luminance 0.855; OKLCH L 94.3% C 0.135 H 113.2°. Best body text is #000000 at 18.10:1 contrast (WCAG AA passes).

Color values

HEX	#ECF688
RGB	rgb(236, 246, 136)
HSL	hsl(65, 86%, 75%)
HSV	hsv(65, 45%, 96%)
CMYK	cmyk(4.1%, 0%, 44.7%, 3.5%)
CIE-LAB	lab(94.11, -18.83, 51.54)
CIE-LCH	lch(94.11, 54.87, 110.06°)
OKLab	oklab(94.26% -0.0531 0.1236)
OKLCH	oklch(94.26% 0.135 113.2)
XYZ	xyz(71.9928, 85.5231, 36.0029)
Luminance	0.8552 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF688 #9288F6

analogous

#F6C988 #ECF688 #B5F688

triadic

#ECF688 #88ECF6 #F688EC

tetradic

#ECF688 #88F6C9 #9288F6 #F688B5

square

#ECF688 #88F6C9 #9288F6 #F688B5

split-complementary

#ECF688 #88B5F6 #C988F6

monochromatic

#DAED16 #E3F24F #ECF688 #F5FAC1 #FAFDE3

Accessibility & contrast

On white

1.16

#ECF688 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.10

#ECF688 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF688

18.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF688	#FFFFFF	#000000	##000000
##ECF688	1.00	1.16	18.10	18.10
#FFFFFF	1.16	1.00	21.00	21.00
#000000	18.10	21.00	1.00	1.00
##000000	18.10	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFED7F

Deuteranopia (green-blind)

#FFEF8D

Tritanopia (blue-blind)

#F8EBDC

Achromatopsia (no color)

#EEEEEE

Design tokens & code

CSS

--color: #ecf688;
/* rgb */ color: rgb(236, 246, 136);
/* oklch */ color: oklch(94.3% 0.135 113.2);

Tailwind

colors: {
  custom: {
    50: '#f4f9ad',
    500: '#ecf688',
    950: '#000000',
  },
}

SCSS

$custom: #ecf688;
$custom-light: #f4f9ad;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf688",
  "rgb": {
    "r": 236,
    "g": 246,
    "b": 136
  },
  "hsl": {
    "h": 65.455,
    "s": 85.938,
    "l": 74.902
  },
  "oklch": {
    "l": 0.94264,
    "c": 0.13455,
    "h": 113.2
  },
  "luminance": 0.85522
}

Semantic roles & 50–950 ramp

primary

#ECF688

secondary

#5B4FD3

accent

#03E217

background

#FFFFFD

surface

#FFFFF7

border

#D7D7D0

text

#171710

muted

#858581

Preview Lab

Preview with #ECF688

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

Preview Lab → · Contrast checker → · Palette generator →