#ECFA63#ECFA63

#ECFA63 is a very light, vivid yellow. Relative luminance 0.871; OKLCH L 94.7% C 0.172 H 114.2°. Best body text is #000000 at 18.42:1 contrast (WCAG AA passes).

Color values

HEX	#ECFA63
RGB	rgb(236, 250, 99)
HSL	hsl(66, 94%, 68%)
HSV	hsv(66, 60%, 98%)
CMYK	cmyk(5.6%, 0%, 60.4%, 2%)
CIE-LAB	lab(94.78, -23.77, 68.74)
CIE-LCH	lch(94.78, 72.74, 109.08°)
OKLab	oklab(94.68% -0.0706 0.1572)
OKLCH	oklch(94.68% 0.172 114.2)
XYZ	xyz(71.0315, 87.1062, 24.8733)
Luminance	0.8710 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECFA63 #7163FA

analogous

#FABC63 #ECFA63 #A0FA63

triadic

#ECFA63 #63ECFA #FA63EC

tetradic

#ECFA63 #63FABC #7163FA #FA63A0

square

#ECFA63 #63FABC #7163FA #FA63A0

split-complementary

#ECFA63 #63A0FA #BC63FA

monochromatic

#C8DC07 #E5F828 #ECFA63 #F3FC9E #FAFEDA

Accessibility & contrast

On white

1.14

#ECFA63 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.42

#ECFA63 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECFA63

18.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECFA63	#FFFFFF	#000000	##000000
##ECFA63	1.00	1.14	18.42	18.42
#FFFFFF	1.14	1.00	21.00	21.00
#000000	18.42	21.00	1.00	1.00
##000000	18.42	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEF51

Deuteranopia (green-blind)

#FFF16D

Tritanopia (blue-blind)

#FAECDA

Achromatopsia (no color)

#F0F0F0

Design tokens & code

CSS

--color: #ecfa63;
/* rgb */ color: rgb(236, 250, 99);
/* oklch */ color: oklch(94.7% 0.172 114.2);

Tailwind

colors: {
  custom: {
    50: '#f5fb95',
    500: '#ecfa63',
    950: '#000000',
  },
}

SCSS

$custom: #ecfa63;
$custom-light: #f5fb95;
$custom-dark: #000000;

JSON

{
  "hex": "#ecfa63",
  "rgb": {
    "r": 236,
    "g": 250,
    "b": 99
  },
  "hsl": {
    "h": 65.563,
    "s": 93.789,
    "l": 68.431
  },
  "oklch": {
    "l": 0.94683,
    "c": 0.17237,
    "h": 114.2
  },
  "luminance": 0.87105
}

Semantic roles & 50–950 ramp

primary

#ECFA63

secondary

#3D2ED4

accent

#00E615

background

#FFFFFC

surface

#FFFFF5

border

#D7D7CF

text

#17170E

muted

#85857F

Preview Lab

Preview with #ECFA63

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

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