#ECF25A#ECF25A

#ECF25A is a very light, vivid yellow. Relative luminance 0.821; OKLCH L 92.9% C 0.171 H 111.5°. Best body text is #000000 at 17.42:1 contrast (WCAG AA passes).

Color values

HEX	#ECF25A
RGB	rgb(236, 242, 90)
HSL	hsl(62, 85%, 65%)
HSV	hsv(62, 63%, 95%)
CMYK	cmyk(2.5%, 0%, 62.8%, 5.1%)
CIE-LAB	lab(92.61, -20.53, 70.04)
CIE-LCH	lch(92.61, 72.98, 106.34°)
OKLab	oklab(92.92% -0.0624 0.1588)
OKLCH	oklch(92.92% 0.171 111.5)
XYZ	xyz(68.1916, 82.0769, 21.9211)
Luminance	0.8207 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF25A #605AF2

analogous

#F2AC5A #ECF25A #A0F25A

triadic

#ECF25A #5AECF2 #F25AEC

tetradic

#ECF25A #5AF2AC #605AF2 #F25AA0

square

#ECF25A #5AF2AC #605AF2 #F25AA0

split-complementary

#ECF25A #5AA0F2 #AC5AF2

monochromatic

#BBC20F #E5EE21 #ECF25A #F3F693 #F9FBCB

Accessibility & contrast

On white

1.21

#ECF25A on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.42

#ECF25A on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF25A

17.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF25A	#FFFFFF	#000000	##000000
##ECF25A	1.00	1.21	17.42	17.42
#FFFFFF	1.21	1.00	21.00	21.00
#000000	17.42	21.00	1.00	1.00
##000000	17.42	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE846

Deuteranopia (green-blind)

#FFEC64

Tritanopia (blue-blind)

#FBE4D3

Achromatopsia (no color)

#EAEAEA

Design tokens & code

CSS

--color: #ecf25a;
/* rgb */ color: rgb(236, 242, 90);
/* oklch */ color: oklch(92.9% 0.171 111.5);

Tailwind

colors: {
  custom: {
    50: '#f5f68f',
    500: '#ecf25a',
    950: '#000000',
  },
}

SCSS

$custom: #ecf25a;
$custom-light: #f5f68f;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf25a",
  "rgb": {
    "r": 236,
    "g": 242,
    "b": 90
  },
  "hsl": {
    "h": 62.368,
    "s": 85.393,
    "l": 65.098
  },
  "oklch": {
    "l": 0.92921,
    "c": 0.17058,
    "h": 111.5
  },
  "luminance": 0.82075
}

Semantic roles & 50–950 ramp

primary

#ECF25A

secondary

#3630C0

accent

#04E20C

background

#FFFFFC

surface

#FFFEF4

border

#D7D6CE

text

#18170D

muted

#86857F

Preview Lab

Preview with #ECF25A

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

Preview Lab → · Contrast checker → · Palette generator →