#ECF677#ECF677

#ECF677 is a very light, vivid yellow. Relative luminance 0.851; OKLCH L 94.0% C 0.151 H 113.0°. Best body text is #000000 at 18.02:1 contrast (WCAG AA passes).

Color values

HEX	#ECF677
RGB	rgb(236, 246, 119)
HSL	hsl(65, 88%, 72%)
HSV	hsv(65, 52%, 96%)
CMYK	cmyk(4.1%, 0%, 51.6%, 3.5%)
CIE-LAB	lab(93.92, -20.36, 59.17)
CIE-LCH	lch(93.92, 62.58, 108.99°)
OKLab	oklab(94.05% -0.059 0.139)
OKLCH	oklch(94.05% 0.151 113)
XYZ	xyz(70.8790, 85.0776, 30.1370)
Luminance	0.8508 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF677 #8177F6

analogous

#F6C077 #ECF677 #ADF677

triadic

#ECF677 #77ECF6 #F677EC

tetradic

#ECF677 #77F6C0 #8177F6 #F677AD

square

#ECF677 #77F6C0 #8177F6 #F677AD

split-complementary

#ECF677 #77ADF6 #C077F6

monochromatic

#D3E40F #E4F23E #ECF677 #F4FAB0 #FBFDE2

Accessibility & contrast

On white

1.17

#ECF677 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.02

#ECF677 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF677

18.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF677	#FFFFFF	#000000	##000000
##ECF677	1.00	1.17	18.02	18.02
#FFFFFF	1.17	1.00	21.00	21.00
#000000	18.02	21.00	1.00	1.00
##000000	18.02	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEC6B

Deuteranopia (green-blind)

#FFEF7E

Tritanopia (blue-blind)

#F9EAD9

Achromatopsia (no color)

#EDEDED

Design tokens & code

CSS

--color: #ecf677;
/* rgb */ color: rgb(236, 246, 119);
/* oklch */ color: oklch(94.0% 0.151 113.0);

Tailwind

colors: {
  custom: {
    50: '#f4f9a1',
    500: '#ecf677',
    950: '#000000',
  },
}

SCSS

$custom: #ecf677;
$custom-light: #f4f9a1;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf677",
  "rgb": {
    "r": 236,
    "g": 246,
    "b": 119
  },
  "hsl": {
    "h": 64.724,
    "s": 87.586,
    "l": 71.569
  },
  "oklch": {
    "l": 0.94049,
    "c": 0.15101,
    "h": 113
  },
  "luminance": 0.85076
}

Semantic roles & 50–950 ramp

primary

#ECF677

secondary

#4B40D1

accent

#01E413

background

#FFFFFC

surface

#FFFFF6

border

#D7D7D0

text

#17170F

muted

#858580

Preview Lab

Preview with #ECF677

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

Preview Lab → · Contrast checker → · Palette generator →