#ECF586#ECF586

#ECF586 is a very light, vivid yellow. Relative luminance 0.849; OKLCH L 94.0% C 0.135 H 112.8°. Best body text is #000000 at 17.97:1 contrast (WCAG AA passes).

Color values

HEX	#ECF586
RGB	rgb(236, 245, 134)
HSL	hsl(65, 85%, 74%)
HSV	hsv(65, 45%, 96%)
CMYK	cmyk(3.7%, 0%, 45.3%, 3.9%)
CIE-LAB	lab(93.82, -18.54, 52.14)
CIE-LCH	lch(93.82, 55.33, 109.57°)
OKLab	oklab(94.03% -0.0524 0.1248)
OKLCH	oklch(94.03% 0.135 112.8)
XYZ	xyz(71.5486, 84.8601, 35.1602)
Luminance	0.8486 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF586 #8F86F5

analogous

#F5C786 #ECF586 #B5F586

triadic

#ECF586 #86ECF5 #F586EC

tetradic

#ECF586 #86F5C7 #8F86F5 #F586B5

square

#ECF586 #86F5C7 #8F86F5 #F586B5

split-complementary

#ECF586 #86B5F5 #C786F5

monochromatic

#DAEC15 #E3F04D #ECF586 #F5FABF #FBFDE3

Accessibility & contrast

On white

1.17

#ECF586 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.97

#ECF586 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF586

17.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF586	#FFFFFF	#000000	##000000
##ECF586	1.00	1.17	17.97	17.97
#FFFFFF	1.17	1.00	21.00	21.00
#000000	17.97	21.00	1.00	1.00
##000000	17.97	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEC7D

Deuteranopia (green-blind)

#FFEF8C

Tritanopia (blue-blind)

#F8EADB

Achromatopsia (no color)

#EDEDED

Design tokens & code

CSS

--color: #ecf586;
/* rgb */ color: rgb(236, 245, 134);
/* oklch */ color: oklch(94.0% 0.135 112.8);

Tailwind

colors: {
  custom: {
    50: '#f4f8ab',
    500: '#ecf586',
    950: '#000000',
  },
}

SCSS

$custom: #ecf586;
$custom-light: #f4f8ab;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf586",
  "rgb": {
    "r": 236,
    "g": 245,
    "b": 134
  },
  "hsl": {
    "h": 64.865,
    "s": 84.733,
    "l": 74.314
  },
  "oklch": {
    "l": 0.94028,
    "c": 0.13538,
    "h": 112.8
  },
  "luminance": 0.84859
}

Semantic roles & 50–950 ramp

primary

#ECF586

secondary

#584ED2

accent

#04E116

background

#FFFFFD

surface

#FFFEF7

border

#D7D6D0

text

#171710

muted

#858581

Preview Lab

Preview with #ECF586

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

Preview Lab → · Contrast checker → · Palette generator →