#ECFB7B#ECFB7B

#ECFB7B is a very light, vivid yellow. Relative luminance 0.883; OKLCH L 95.1% C 0.153 H 114.9°. Best body text is #000000 at 18.65:1 contrast (WCAG AA passes).

Color values

HEX	#ECFB7B
RGB	rgb(236, 251, 123)
HSL	hsl(67, 94%, 73%)
HSV	hsv(67, 51%, 98%)
CMYK	cmyk(6%, 0%, 51%, 1.6%)
CIE-LAB	lab(95.27, -22.42, 58.95)
CIE-LCH	lch(95.27, 63.07, 110.82°)
OKLab	oklab(95.14% -0.0644 0.1389)
OKLCH	oklch(95.14% 0.153 114.9)
XYZ	xyz(72.6656, 88.2583, 31.9426)
Luminance	0.8826 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECFB7B #8A7BFB

analogous

#FBCA7B #ECFB7B #ACFB7B

triadic

#ECFB7B #7BECFB #FB7BEC

tetradic

#ECFB7B #7BFBCA #8A7BFB #FB7BAC

square

#ECFB7B #7BFBCA #8A7BFB #FB7BAC

split-complementary

#ECFB7B #7BACFB #CA7BFB

monochromatic

#D8F407 #E3F940 #ECFB7B #F5FDB6 #FBFEE1

Accessibility & contrast

On white

1.13

#ECFB7B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.65

#ECFB7B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECFB7B

18.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECFB7B	#FFFFFF	#000000	##000000
##ECFB7B	1.00	1.13	18.65	18.65
#FFFFFF	1.13	1.00	21.00	21.00
#000000	18.65	21.00	1.00	1.00
##000000	18.65	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF06F

Deuteranopia (green-blind)

#FFF382

Tritanopia (blue-blind)

#F9EFDE

Achromatopsia (no color)

#F1F1F1

Design tokens & code

CSS

--color: #ecfb7b;
/* rgb */ color: rgb(236, 251, 123);
/* oklch */ color: oklch(95.1% 0.153 114.9);

Tailwind

colors: {
  custom: {
    50: '#f4fca4',
    500: '#ecfb7b',
    950: '#000000',
  },
}

SCSS

$custom: #ecfb7b;
$custom-light: #f4fca4;
$custom-dark: #000000;

JSON

{
  "hex": "#ecfb7b",
  "rgb": {
    "r": 236,
    "g": 251,
    "b": 123
  },
  "hsl": {
    "h": 67.031,
    "s": 94.118,
    "l": 73.333
  },
  "oklch": {
    "l": 0.95144,
    "c": 0.15311,
    "h": 114.9
  },
  "luminance": 0.88257
}

Semantic roles & 50–950 ramp

primary

#ECFB7B

secondary

#5442D8

accent

#00E61B

background

#FFFFFC

surface

#FFFFF6

border

#D7D7D0

text

#17170F

muted

#858580

Preview Lab

Preview with #ECFB7B

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

Preview Lab → · Contrast checker → · Palette generator →