#ECF96B#ECF96B

#ECF96B is a very light, vivid yellow. Relative luminance 0.866; OKLCH L 94.5% C 0.165 H 113.9°. Best body text is #000000 at 18.33:1 contrast (WCAG AA passes).

Color values

HEX	#ECF96B
RGB	rgb(236, 249, 107)
HSL	hsl(65, 92%, 70%)
HSV	hsv(65, 57%, 98%)
CMYK	cmyk(5.2%, 0%, 57%, 2.4%)
CIE-LAB	lab(94.59, -22.74, 65.20)
CIE-LCH	lch(94.59, 69.05, 109.23°)
OKLab	oklab(94.55% -0.0669 0.1507)
OKLCH	oklch(94.55% 0.165 113.9)
XYZ	xyz(71.1231, 86.6470, 26.8849)
Luminance	0.8665 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF96B #786BF9

analogous

#F9BF6B #ECF96B #A5F96B

triadic

#ECF96B #6BECF9 #F96BEC

tetradic

#ECF96B #6BF9BF #786BF9 #F96BA5

square

#ECF96B #6BF9BF #786BF9 #F96BA5

split-complementary

#ECF96B #6BA5F9 #BF6BF9

monochromatic

#CDE009 #E4F730 #ECF96B #F4FBA6 #FBFEE1

Accessibility & contrast

On white

1.15

#ECF96B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.33

#ECF96B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF96B

18.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF96B	#FFFFFF	#000000	##000000
##ECF96B	1.00	1.15	18.33	18.33
#FFFFFF	1.15	1.00	21.00	21.00
#000000	18.33	21.00	1.00	1.00
##000000	18.33	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEE5C

Deuteranopia (green-blind)

#FFF174

Tritanopia (blue-blind)

#FAECDA

Achromatopsia (no color)

#EFEFEF

Design tokens & code

CSS

--color: #ecf96b;
/* rgb */ color: rgb(236, 249, 107);
/* oklch */ color: oklch(94.5% 0.165 113.9);

Tailwind

colors: {
  custom: {
    50: '#f5fb9a',
    500: '#ecf96b',
    950: '#000000',
  },
}

SCSS

$custom: #ecf96b;
$custom-light: #f5fb9a;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf96b",
  "rgb": {
    "r": 236,
    "g": 249,
    "b": 107
  },
  "hsl": {
    "h": 65.493,
    "s": 92.208,
    "l": 69.804
  },
  "oklch": {
    "l": 0.94549,
    "c": 0.16488,
    "h": 113.9
  },
  "luminance": 0.86646
}

Semantic roles & 50–950 ramp

primary

#ECF96B

secondary

#4335D3

accent

#00E615

background

#FFFFFC

surface

#FFFFF5

border

#D7D7CF

text

#17170E

muted

#85857F

Preview Lab

Preview with #ECF96B

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

Preview Lab → · Contrast checker → · Palette generator →