#ECFC5F#ECFC5F

#ECFC5F is a very light, vivid yellow. Relative luminance 0.883; OKLCH L 95.1% C 0.178 H 114.8°. Best body text is #000000 at 18.66:1 contrast (WCAG AA passes).

Color values

HEX	#ECFC5F
RGB	rgb(236, 252, 95)
HSL	hsl(66, 96%, 68%)
HSV	hsv(66, 62%, 99%)
CMYK	cmyk(6.3%, 0%, 62.3%, 1.2%)
CIE-LAB	lab(95.28, -24.98, 70.88)
CIE-LCH	lch(95.28, 75.15, 109.41°)
OKLab	oklab(95.07% -0.0744 0.1612)
OKLCH	oklch(95.07% 0.178 114.8)
XYZ	xyz(71.4697, 88.2811, 24.0993)
Luminance	0.8828 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECFC5F #6F5FFC

analogous

#FCBE5F #ECFC5F #9DFC5F

triadic

#ECFC5F #5FECFC #FC5FEC

tetradic

#ECFC5F #5FFCBE #6F5FFC #FC5F9D

square

#ECFC5F #5FFCBE #6F5FFC #FC5F9D

split-complementary

#ECFC5F #5F9DFC #BE5FFC

monochromatic

#C6DC04 #E5FB23 #ECFC5F #F3FD9B #FAFED7

Accessibility & contrast

On white

1.13

#ECFC5F on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.66

#ECFC5F on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECFC5F

18.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECFC5F	#FFFFFF	#000000	##000000
##ECFC5F	1.00	1.13	18.66	18.66
#FFFFFF	1.13	1.00	21.00	21.00
#000000	18.66	21.00	1.00	1.00
##000000	18.66	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF04B

Deuteranopia (green-blind)

#FFF36A

Tritanopia (blue-blind)

#FAEEDB

Achromatopsia (no color)

#F1F1F1

Design tokens & code

CSS

--color: #ecfc5f;
/* rgb */ color: rgb(236, 252, 95);
/* oklch */ color: oklch(95.1% 0.178 114.8);

Tailwind

colors: {
  custom: {
    50: '#f5fd93',
    500: '#ecfc5f',
    950: '#000000',
  },
}

SCSS

$custom: #ecfc5f;
$custom-light: #f5fd93;
$custom-dark: #000000;

JSON

{
  "hex": "#ecfc5f",
  "rgb": {
    "r": 236,
    "g": 252,
    "b": 95
  },
  "hsl": {
    "h": 66.115,
    "s": 96.319,
    "l": 68.039
  },
  "oklch": {
    "l": 0.9507,
    "c": 0.17756,
    "h": 114.8
  },
  "luminance": 0.8828
}

Semantic roles & 50–950 ramp

primary

#ECFC5F

secondary

#3B2AD5

accent

#00E617

background

#FFFFFC

surface

#FFFFF5

border

#D7D7CF

text

#17170E

muted

#85857F

Preview Lab

Preview with #ECFC5F

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

Preview Lab → · Contrast checker → · Palette generator →