#ECFF44#ECFF44

#ECFF44 is a very light, vivid yellow. Relative luminance 0.898; OKLCH L 95.5% C 0.198 H 115.4°. Best body text is #000000 at 18.95:1 contrast (WCAG AA passes).

Color values

HEX	#ECFF44
RGB	rgb(236, 255, 68)
HSL	hsl(66, 100%, 63%)
HSV	hsv(66, 73%, 100%)
CMYK	cmyk(7.5%, 0%, 73.3%, 0%)
CIE-LAB	lab(95.90, -27.82, 81.11)
CIE-LCH	lch(95.90, 85.74, 108.93°)
OKLab	oklab(95.52% -0.0847 0.1787)
OKLCH	oklch(95.52% 0.198 115.4)
XYZ	xyz(71.3974, 89.7714, 19.0342)
Luminance	0.8977 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECFF44 #5744FF

analogous

#FFB444 #ECFF44 #8EFF44

triadic

#ECFF44 #44ECFF #FF44EC

tetradic

#ECFF44 #44FFB4 #5744FF #FF448E

square

#ECFF44 #44FFB4 #5744FF #FF448E

split-complementary

#ECFF44 #448EFF #B444FF

monochromatic

#B4C900 #E6FF07 #ECFF44 #F2FF81 #F8FFBE

Accessibility & contrast

On white

1.11

#ECFF44 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.95

#ECFF44 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECFF44

18.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECFF44	#FFFFFF	#000000	##000000
##ECFF44	1.00	1.11	18.95	18.95
#FFFFFF	1.11	1.00	21.00	21.00
#000000	18.95	21.00	1.00	1.00
##000000	18.95	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF219

Deuteranopia (green-blind)

#FFF554

Tritanopia (blue-blind)

#FBF0DC

Achromatopsia (no color)

#F3F3F3

Design tokens & code

CSS

--color: #ecff44;
/* rgb */ color: rgb(236, 255, 68);
/* oklch */ color: oklch(95.5% 0.198 115.4);

Tailwind

colors: {
  custom: {
    50: '#f6ff85',
    500: '#ecff44',
    950: '#000000',
  },
}

SCSS

$custom: #ecff44;
$custom-light: #f6ff85;
$custom-dark: #000000;

JSON

{
  "hex": "#ecff44",
  "rgb": {
    "r": 236,
    "g": 255,
    "b": 68
  },
  "hsl": {
    "h": 66.096,
    "s": 100,
    "l": 63.333
  },
  "oklch": {
    "l": 0.95515,
    "c": 0.19773,
    "h": 115.4
  },
  "luminance": 0.8977
}

Semantic roles & 50–950 ramp

primary

#ECFF44

secondary

#3323C5

accent

#00E617

background

#FFFFFC

surface

#FFFFF4

border

#D7D7CE

text

#18170C

muted

#86857F

Preview Lab

Preview with #ECFF44

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

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