#ECF97F#ECF97F

#ECF97F is a very light, vivid yellow. Relative luminance 0.871; OKLCH L 94.8% C 0.147 H 114.3°. Best body text is #000000 at 18.42:1 contrast (WCAG AA passes).

Color values

HEX	#ECF97F
RGB	rgb(236, 249, 127)
HSL	hsl(66, 91%, 74%)
HSV	hsv(66, 49%, 98%)
CMYK	cmyk(5.2%, 0%, 49%, 2.4%)
CIE-LAB	lab(94.79, -21.11, 56.56)
CIE-LCH	lch(94.79, 60.37, 110.47°)
OKLab	oklab(94.77% -0.0604 0.134)
OKLCH	oklch(94.77% 0.147 114.3)
XYZ	xyz(72.2997, 87.1176, 33.0812)
Luminance	0.8712 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF97F #8C7FF9

analogous

#F9C97F #ECF97F #AFF97F

triadic

#ECF97F #7FECF9 #F97FEC

tetradic

#ECF97F #7FF9C9 #8C7FF9 #F97FAF

square

#ECF97F #7FF9C9 #8C7FF9 #F97FAF

split-complementary

#ECF97F #7FAFF9 #C97FF9

monochromatic

#DAF20B #E3F645 #ECF97F #F5FCB9 #FBFEE2

Accessibility & contrast

On white

1.14

#ECF97F on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.42

#ECF97F on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF97F

18.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF97F	#FFFFFF	#000000	##000000
##ECF97F	1.00	1.14	18.42	18.42
#FFFFFF	1.14	1.00	21.00	21.00
#000000	18.42	21.00	1.00	1.00
##000000	18.42	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEF74

Deuteranopia (green-blind)

#FFF185

Tritanopia (blue-blind)

#F8EDDD

Achromatopsia (no color)

#F0F0F0

Design tokens & code

CSS

--color: #ecf97f;
/* rgb */ color: rgb(236, 249, 127);
/* oklch */ color: oklch(94.8% 0.147 114.3);

Tailwind

colors: {
  custom: {
    50: '#f4fba7',
    500: '#ecf97f',
    950: '#000000',
  },
}

SCSS

$custom: #ecf97f;
$custom-light: #f4fba7;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf97f",
  "rgb": {
    "r": 236,
    "g": 249,
    "b": 127
  },
  "hsl": {
    "h": 66.393,
    "s": 91.045,
    "l": 73.725
  },
  "oklch": {
    "l": 0.94773,
    "c": 0.14699,
    "h": 114.3
  },
  "luminance": 0.87117
}

Semantic roles & 50–950 ramp

primary

#ECF97F

secondary

#5546D6

accent

#00E618

background

#FFFFFC

surface

#FFFFF6

border

#D7D7D0

text

#171710

muted

#858580

Preview Lab

Preview with #ECF97F

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

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