#ECF36F#ECF36F

#ECF36F is a very light, vivid yellow. Relative luminance 0.831; OKLCH L 93.3% C 0.155 H 111.8°. Best body text is #000000 at 17.62:1 contrast (WCAG AA passes).

Color values

HEX	#ECF36F
RGB	rgb(236, 243, 111)
HSL	hsl(63, 85%, 69%)
HSV	hsv(63, 54%, 95%)
CMYK	cmyk(2.9%, 0%, 54.3%, 4.7%)
CIE-LAB	lab(93.05, -19.56, 61.73)
CIE-LCH	lch(93.05, 64.76, 107.58°)
OKLab	oklab(93.33% -0.0575 0.1437)
OKLCH	oklch(93.33% 0.155 111.8)
XYZ	xyz(69.5135, 83.0832, 27.4107)
Luminance	0.8308 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF36F #766FF3

analogous

#F3B86F #ECF36F #AAF36F

triadic

#ECF36F #6FECF3 #F36FEC

tetradic

#ECF36F #6FF3B8 #766FF3 #F36FAA

square

#ECF36F #6FF3B8 #766FF3 #F36FAA

split-complementary

#ECF36F #6FAAF3 #B86FF3

monochromatic

#CBD612 #E5EE37 #ECF36F #F3F8A7 #FBFCE0

Accessibility & contrast

On white

1.19

#ECF36F on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.62

#ECF36F on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF36F

17.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF36F	#FFFFFF	#000000	##000000
##ECF36F	1.00	1.19	17.62	17.62
#FFFFFF	1.19	1.00	21.00	21.00
#000000	17.62	21.00	1.00	1.00
##000000	17.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE962

Deuteranopia (green-blind)

#FFED76

Tritanopia (blue-blind)

#FAE6D6

Achromatopsia (no color)

#EBEBEB

Design tokens & code

CSS

--color: #ecf36f;
/* rgb */ color: rgb(236, 243, 111);
/* oklch */ color: oklch(93.3% 0.155 111.8);

Tailwind

colors: {
  custom: {
    50: '#f5f69c',
    500: '#ecf36f',
    950: '#000000',
  },
}

SCSS

$custom: #ecf36f;
$custom-light: #f5f69c;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf36f",
  "rgb": {
    "r": 236,
    "g": 243,
    "b": 111
  },
  "hsl": {
    "h": 63.182,
    "s": 84.615,
    "l": 69.412
  },
  "oklch": {
    "l": 0.93332,
    "c": 0.15481,
    "h": 111.8
  },
  "luminance": 0.83082
}

Semantic roles & 50–950 ramp

primary

#ECF36F

secondary

#413ACC

accent

#04E110

background

#FFFFFC

surface

#FFFEF5

border

#D7D6CF

text

#17170E

muted

#85857F

Preview Lab

Preview with #ECF36F

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

Preview Lab → · Contrast checker → · Palette generator →