#ECFC65#ECFC65

#ECFC65 is a very light, vivid yellow. Relative luminance 0.884; OKLCH L 95.1% C 0.173 H 114.8°. Best body text is #000000 at 18.68:1 contrast (WCAG AA passes).

Color values

HEX	#ECFC65
RGB	rgb(236, 252, 101)
HSL	hsl(66, 96%, 69%)
HSV	hsv(66, 60%, 99%)
CMYK	cmyk(6.3%, 0%, 59.9%, 1.2%)
CIE-LAB	lab(95.33, -24.59, 68.52)
CIE-LCH	lch(95.33, 72.79, 109.74°)
OKLab	oklab(95.12% -0.0727 0.157)
OKLCH	oklch(95.12% 0.173 114.8)
XYZ	xyz(71.7530, 88.3944, 25.5913)
Luminance	0.8839 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECFC65 #7565FC

analogous

#FCC165 #ECFC65 #A1FC65

triadic

#ECFC65 #65ECFC #FC65EC

tetradic

#ECFC65 #65FCC1 #7565FC #FC65A1

square

#ECFC65 #65FCC1 #7565FC #FC65A1

split-complementary

#ECFC65 #65A1FC #C165FC

monochromatic

#CBE204 #E5FB29 #ECFC65 #F3FDA1 #FBFEDD

Accessibility & contrast

On white

1.12

#ECFC65 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.68

#ECFC65 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECFC65

18.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECFC65	#FFFFFF	#000000	##000000
##ECFC65	1.00	1.12	18.68	18.68
#FFFFFF	1.12	1.00	21.00	21.00
#000000	18.68	21.00	1.00	1.00
##000000	18.68	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF053

Deuteranopia (green-blind)

#FFF36F

Tritanopia (blue-blind)

#FAEFDC

Achromatopsia (no color)

#F2F2F2

Design tokens & code

CSS

--color: #ecfc65;
/* rgb */ color: rgb(236, 252, 101);
/* oklch */ color: oklch(95.1% 0.173 114.8);

Tailwind

colors: {
  custom: {
    50: '#f5fd97',
    500: '#ecfc65',
    950: '#000000',
  },
}

SCSS

$custom: #ecfc65;
$custom-light: #f5fd97;
$custom-dark: #000000;

JSON

{
  "hex": "#ecfc65",
  "rgb": {
    "r": 236,
    "g": 252,
    "b": 101
  },
  "hsl": {
    "h": 66.358,
    "s": 96.178,
    "l": 69.216
  },
  "oklch": {
    "l": 0.95123,
    "c": 0.17303,
    "h": 114.8
  },
  "luminance": 0.88393
}

Semantic roles & 50–950 ramp

primary

#ECFC65

secondary

#412FD6

accent

#00E618

background

#FFFFFC

surface

#FFFFF5

border

#D7D7CF

text

#17170E

muted

#85857F

Preview Lab

Preview with #ECFC65

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

Preview Lab → · Contrast checker → · Palette generator →