#ECF997#ECF997

#ECF997 is a very light, vivid yellow. Relative luminance 0.878; OKLCH L 95.1% C 0.122 H 114.9°. Best body text is #000000 at 18.56:1 contrast (WCAG AA passes).

Color values

HEX	#ECF997
RGB	rgb(236, 249, 151)
HSL	hsl(68, 89%, 78%)
HSV	hsv(68, 39%, 98%)
CMYK	cmyk(5.2%, 0%, 39.4%, 2.4%)
CIE-LAB	lab(95.08, -18.73, 45.57)
CIE-LCH	lch(95.08, 49.26, 112.34°)
OKLab	oklab(95.11% -0.0516 0.1111)
OKLCH	oklch(95.11% 0.122 114.9)
XYZ	xyz(74.0542, 87.8194, 42.3218)
Luminance	0.8782 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF997 #A497F9

analogous

#F9D597 #ECF997 #BBF997

triadic

#ECF997 #97ECF9 #F997EC

tetradic

#ECF997 #97F9D5 #A497F9 #F997BB

square

#ECF997 #97F9D5 #A497F9 #F997BB

split-complementary

#ECF997 #97BBF9 #D597F9

monochromatic

#D7F223 #E1F65D #ECF997 #F7FCD1 #FAFDE2

Accessibility & contrast

On white

1.13

#ECF997 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.56

#ECF997 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF997

18.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF997	#FFFFFF	#000000	##000000
##ECF997	1.00	1.13	18.56	18.56
#FFFFFF	1.13	1.00	21.00	21.00
#000000	18.56	21.00	1.00	1.00
##000000	18.56	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF08F

Deuteranopia (green-blind)

#FFF29C

Tritanopia (blue-blind)

#F6EFE1

Achromatopsia (no color)

#F1F1F1

Design tokens & code

CSS

--color: #ecf997;
/* rgb */ color: rgb(236, 249, 151);
/* oklch */ color: oklch(95.1% 0.122 114.9);

Tailwind

colors: {
  custom: {
    50: '#f3fbb7',
    500: '#ecf997',
    950: '#000000',
  },
}

SCSS

$custom: #ecf997;
$custom-light: #f3fbb7;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf997",
  "rgb": {
    "r": 236,
    "g": 249,
    "b": 151
  },
  "hsl": {
    "h": 67.959,
    "s": 89.091,
    "l": 78.431
  },
  "oklch": {
    "l": 0.95106,
    "c": 0.12247,
    "h": 114.9
  },
  "luminance": 0.87819
}

Semantic roles & 50–950 ramp

primary

#ECF997

secondary

#6C5BD9

accent

#00E61E

background

#FFFFFD

surface

#FEFFF8

border

#D6D7D1

text

#171711

muted

#858581

Preview Lab

Preview with #ECF997

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

Preview Lab → · Contrast checker → · Palette generator →