#ECF585#ECF585

#ECF585 is a very light, vivid yellow. Relative luminance 0.848; OKLCH L 94.0% C 0.136 H 112.8°. Best body text is #000000 at 17.97:1 contrast (WCAG AA passes).

Color values

HEX	#ECF585
RGB	rgb(236, 245, 133)
HSL	hsl(65, 85%, 74%)
HSV	hsv(65, 46%, 96%)
CMYK	cmyk(3.7%, 0%, 45.7%, 3.9%)
CIE-LAB	lab(93.81, -18.63, 52.59)
CIE-LCH	lch(93.81, 55.80, 109.51°)
OKLab	oklab(94.02% -0.0528 0.1258)
OKLCH	oklch(94.02% 0.136 112.8)
XYZ	xyz(71.4792, 84.8323, 34.7946)
Luminance	0.8483 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF585 #8E85F5

analogous

#F5C685 #ECF585 #B4F585

triadic

#ECF585 #85ECF5 #F585EC

tetradic

#ECF585 #85F5C6 #8E85F5 #F585B4

square

#ECF585 #85F5C6 #8E85F5 #F585B4

split-complementary

#ECF585 #85B4F5 #C685F5

monochromatic

#DAEC14 #E3F04C #ECF585 #F5FABE #FBFDE3

Accessibility & contrast

On white

1.17

#ECF585 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.97

#ECF585 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF585

17.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF585	#FFFFFF	#000000	##000000
##ECF585	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)

#FFEC7B

Deuteranopia (green-blind)

#FFEF8B

Tritanopia (blue-blind)

#F8E9DB

Achromatopsia (no color)

#EDEDED

Design tokens & code

CSS

--color: #ecf585;
/* rgb */ color: rgb(236, 245, 133);
/* oklch */ color: oklch(94.0% 0.136 112.8);

Tailwind

colors: {
  custom: {
    50: '#f4f8ab',
    500: '#ecf585',
    950: '#000000',
  },
}

SCSS

$custom: #ecf585;
$custom-light: #f4f8ab;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf585",
  "rgb": {
    "r": 236,
    "g": 245,
    "b": 133
  },
  "hsl": {
    "h": 64.821,
    "s": 84.848,
    "l": 74.118
  },
  "oklch": {
    "l": 0.94015,
    "c": 0.13638,
    "h": 112.8
  },
  "luminance": 0.84831
}

Semantic roles & 50–950 ramp

primary

#ECF585

secondary

#574DD2

accent

#04E116

background

#FFFFFD

surface

#FFFEF7

border

#D7D6D0

text

#171710

muted

#858581

Preview Lab

Preview with #ECF585

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

Preview Lab → · Contrast checker → · Palette generator →