#ECF582#ECF582

#ECF582 is a very light, vivid yellow. Relative luminance 0.847; OKLCH L 94.0% C 0.139 H 112.7°. Best body text is #000000 at 17.95:1 contrast (WCAG AA passes).

Color values

HEX	#ECF582
RGB	rgb(236, 245, 130)
HSL	hsl(65, 85%, 74%)
HSV	hsv(65, 47%, 96%)
CMYK	cmyk(3.7%, 0%, 46.9%, 3.9%)
CIE-LAB	lab(93.78, -18.91, 53.96)
CIE-LCH	lch(93.78, 57.18, 109.32°)
OKLab	oklab(93.98% -0.0539 0.1285)
OKLCH	oklch(93.98% 0.139 112.7)
XYZ	xyz(71.2749, 84.7506, 33.7186)
Luminance	0.8475 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF582 #8B82F5

analogous

#F5C482 #ECF582 #B2F582

triadic

#ECF582 #82ECF5 #F582EC

tetradic

#ECF582 #82F5C4 #8B82F5 #F582B2

square

#ECF582 #82F5C4 #8B82F5 #F582B2

split-complementary

#ECF582 #82B2F5 #C482F5

monochromatic

#D9EA13 #E3F049 #ECF582 #F5FABB #FBFDE3

Accessibility & contrast

On white

1.17

#ECF582 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.95

#ECF582 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF582

17.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF582	#FFFFFF	#000000	##000000
##ECF582	1.00	1.17	17.95	17.95
#FFFFFF	1.17	1.00	21.00	21.00
#000000	17.95	21.00	1.00	1.00
##000000	17.95	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEC78

Deuteranopia (green-blind)

#FFEF88

Tritanopia (blue-blind)

#F9E9DA

Achromatopsia (no color)

#EDEDED

Design tokens & code

CSS

--color: #ecf582;
/* rgb */ color: rgb(236, 245, 130);
/* oklch */ color: oklch(94.0% 0.139 112.7);

Tailwind

colors: {
  custom: {
    50: '#f4f8a9',
    500: '#ecf582',
    950: '#000000',
  },
}

SCSS

$custom: #ecf582;
$custom-light: #f4f8a9;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf582",
  "rgb": {
    "r": 236,
    "g": 245,
    "b": 130
  },
  "hsl": {
    "h": 64.696,
    "s": 85.185,
    "l": 73.529
  },
  "oklch": {
    "l": 0.93975,
    "c": 0.13937,
    "h": 112.7
  },
  "luminance": 0.84749
}

Semantic roles & 50–950 ramp

primary

#ECF582

secondary

#554AD1

accent

#04E215

background

#FFFFFD

surface

#FFFEF7

border

#D7D6D0

text

#171710

muted

#858581

Preview Lab

Preview with #ECF582

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

Preview Lab → · Contrast checker → · Palette generator →