#ECFC6B#ECFC6B

#ECFC6B is a very light, vivid yellow. Relative luminance 0.885; OKLCH L 95.2% C 0.168 H 114.9°. Best body text is #000000 at 18.70:1 contrast (WCAG AA passes).

Color values

HEX	#ECFC6B
RGB	rgb(236, 252, 107)
HSL	hsl(67, 96%, 70%)
HSV	hsv(67, 58%, 99%)
CMYK	cmyk(6.3%, 0%, 57.5%, 1.2%)
CIE-LAB	lab(95.38, -24.16, 66.08)
CIE-LCH	lch(95.38, 70.36, 110.09°)
OKLab	oklab(95.18% -0.0709 0.1526)
OKLCH	oklch(95.18% 0.168 114.9)
XYZ	xyz(72.0578, 88.5163, 27.1965)
Luminance	0.8851 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECFC6B #7B6BFC

analogous

#FCC46B #ECFC6B #A3FC6B

triadic

#ECFC6B #6BECFC #FC6BEC

tetradic

#ECFC6B #6BFCC4 #7B6BFC #FC6BA3

square

#ECFC6B #6BFCC4 #7B6BFC #FC6BA3

split-complementary

#ECFC6B #6BA3FC #C46BFC

monochromatic

#CFE805 #E4FB2F #ECFC6B #F4FDA7 #FBFEE1

Accessibility & contrast

On white

1.12

#ECFC6B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.70

#ECFC6B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECFC6B

18.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECFC6B	#FFFFFF	#000000	##000000
##ECFC6B	1.00	1.12	18.70	18.70
#FFFFFF	1.12	1.00	21.00	21.00
#000000	18.70	21.00	1.00	1.00
##000000	18.70	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF15B

Deuteranopia (green-blind)

#FFF374

Tritanopia (blue-blind)

#FAEFDD

Achromatopsia (no color)

#F2F2F2

Design tokens & code

CSS

--color: #ecfc6b;
/* rgb */ color: rgb(236, 252, 107);
/* oklch */ color: oklch(95.2% 0.168 114.9);

Tailwind

colors: {
  custom: {
    50: '#f5fd9a',
    500: '#ecfc6b',
    950: '#000000',
  },
}

SCSS

$custom: #ecfc6b;
$custom-light: #f5fd9a;
$custom-dark: #000000;

JSON

{
  "hex": "#ecfc6b",
  "rgb": {
    "r": 236,
    "g": 252,
    "b": 107
  },
  "hsl": {
    "h": 66.621,
    "s": 96.026,
    "l": 70.392
  },
  "oklch": {
    "l": 0.95181,
    "c": 0.16824,
    "h": 114.9
  },
  "luminance": 0.88515
}

Semantic roles & 50–950 ramp

primary

#ECFC6B

secondary

#4634D7

accent

#00E619

background

#FFFFFC

surface

#FFFFF5

border

#D7D7CF

text

#17170E

muted

#85857F

Preview Lab

Preview with #ECFC6B

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

Preview Lab → · Contrast checker → · Palette generator →