#ECF671#ECF671

#ECF671 is a very light, vivid yellow. Relative luminance 0.849; OKLCH L 94.0% C 0.156 H 112.9°. Best body text is #000000 at 17.99:1 contrast (WCAG AA passes).

Color values

HEX	#ECF671
RGB	rgb(236, 246, 113)
HSL	hsl(65, 88%, 70%)
HSV	hsv(65, 54%, 96%)
CMYK	cmyk(4.1%, 0%, 54.1%, 3.5%)
CIE-LAB	lab(93.86, -20.85, 61.77)
CIE-LCH	lch(93.86, 65.20, 108.65°)
OKLab	oklab(93.98% -0.061 0.144)
OKLCH	oklch(93.98% 0.156 112.9)
XYZ	xyz(70.5300, 84.9380, 28.2988)
Luminance	0.8494 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF671 #7B71F6

analogous

#F6BD71 #ECF671 #AAF671

triadic

#ECF671 #71ECF6 #F671EC

tetradic

#ECF671 #71F6BD #7B71F6 #F671AA

square

#ECF671 #71F6BD #7B71F6 #F671AA

split-complementary

#ECF671 #71AAF6 #BD71F6

monochromatic

#CFDE0E #E4F237 #ECF671 #F4FAAB #FBFDE2

Accessibility & contrast

On white

1.17

#ECF671 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.99

#ECF671 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF671

17.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF671	#FFFFFF	#000000	##000000
##ECF671	1.00	1.17	17.99	17.99
#FFFFFF	1.17	1.00	21.00	21.00
#000000	17.99	21.00	1.00	1.00
##000000	17.99	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEC64

Deuteranopia (green-blind)

#FFEF79

Tritanopia (blue-blind)

#FAE9D9

Achromatopsia (no color)

#EDEDED

Design tokens & code

CSS

--color: #ecf671;
/* rgb */ color: rgb(236, 246, 113);
/* oklch */ color: oklch(94.0% 0.156 112.9);

Tailwind

colors: {
  custom: {
    50: '#f5f99e',
    500: '#ecf671',
    950: '#000000',
  },
}

SCSS

$custom: #ecf671;
$custom-light: #f5f99e;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf671",
  "rgb": {
    "r": 236,
    "g": 246,
    "b": 113
  },
  "hsl": {
    "h": 64.511,
    "s": 88.079,
    "l": 70.392
  },
  "oklch": {
    "l": 0.93981,
    "c": 0.15638,
    "h": 112.9
  },
  "luminance": 0.84937
}

Semantic roles & 50–950 ramp

primary

#ECF671

secondary

#463BD0

accent

#01E512

background

#FFFFFC

surface

#FFFFF5

border

#D7D7CF

text

#17170F

muted

#858580

Preview Lab

Preview with #ECF671

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

Preview Lab → · Contrast checker → · Palette generator →