#ECF57E#ECF57E

#ECF57E is a very light, vivid yellow. Relative luminance 0.846; OKLCH L 93.9% C 0.143 H 112.7°. Best body text is #000000 at 17.93:1 contrast (WCAG AA passes).

Color values

HEX	#ECF57E
RGB	rgb(236, 245, 126)
HSL	hsl(65, 86%, 73%)
HSV	hsv(65, 49%, 96%)
CMYK	cmyk(3.7%, 0%, 48.6%, 3.9%)
CIE-LAB	lab(93.73, -19.28, 55.76)
CIE-LCH	lch(93.73, 59.00, 109.07°)
OKLab	oklab(93.92% -0.0553 0.1322)
OKLCH	oklch(93.92% 0.143 112.7)
XYZ	xyz(71.0116, 84.6453, 32.3320)
Luminance	0.8464 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF57E #877EF5

analogous

#F5C37E #ECF57E #B0F57E

triadic

#ECF57E #7EECF5 #F57EEC

tetradic

#ECF57E #7EF5C3 #877EF5 #F57EB0

square

#ECF57E #7EF5C3 #877EF5 #F57EB0

split-complementary

#ECF57E #7EB0F5 #C37EF5

monochromatic

#D7E712 #E4F145 #ECF57E #F4F9B7 #FBFDE3

Accessibility & contrast

On white

1.17

#ECF57E on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.93

#ECF57E on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF57E

17.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF57E	#FFFFFF	#000000	##000000
##ECF57E	1.00	1.17	17.93	17.93
#FFFFFF	1.17	1.00	21.00	21.00
#000000	17.93	21.00	1.00	1.00
##000000	17.93	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEB73

Deuteranopia (green-blind)

#FFEE84

Tritanopia (blue-blind)

#F9E9DA

Achromatopsia (no color)

#EDEDED

Design tokens & code

CSS

--color: #ecf57e;
/* rgb */ color: rgb(236, 245, 126);
/* oklch */ color: oklch(93.9% 0.143 112.7);

Tailwind

colors: {
  custom: {
    50: '#f4f8a6',
    500: '#ecf57e',
    950: '#000000',
  },
}

SCSS

$custom: #ecf57e;
$custom-light: #f4f8a6;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf57e",
  "rgb": {
    "r": 236,
    "g": 245,
    "b": 126
  },
  "hsl": {
    "h": 64.538,
    "s": 85.612,
    "l": 72.745
  },
  "oklch": {
    "l": 0.93924,
    "c": 0.14327,
    "h": 112.7
  },
  "luminance": 0.84644
}

Semantic roles & 50–950 ramp

primary

#ECF57E

secondary

#5146D1

accent

#03E214

background

#FFFFFC

surface

#FFFEF6

border

#D7D6D0

text

#171710

muted

#858580

Preview Lab

Preview with #ECF57E

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

Preview Lab → · Contrast checker → · Palette generator →