#ECF879#ECF879

#ECF879 is a very light, vivid yellow. Relative luminance 0.863; OKLCH L 94.5% C 0.151 H 113.8°. Best body text is #000000 at 18.27:1 contrast (WCAG AA passes).

Color values

HEX	#ECF879
RGB	rgb(236, 248, 121)
HSL	hsl(66, 90%, 72%)
HSV	hsv(66, 51%, 97%)
CMYK	cmyk(4.8%, 0%, 51.2%, 2.7%)
CIE-LAB	lab(94.46, -21.15, 58.91)
CIE-LCH	lch(94.46, 62.59, 109.75°)
OKLab	oklab(94.49% -0.0611 0.1386)
OKLCH	oklch(94.49% 0.151 113.8)
XYZ	xyz(71.6120, 86.3493, 30.9801)
Luminance	0.8635 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF879 #8579F8

analogous

#F8C479 #ECF879 #ADF879

triadic

#ECF879 #79ECF8 #F879EC

tetradic

#ECF879 #79F8C4 #8579F8 #F879AD

square

#ECF879 #79F8C4 #8579F8 #F879AD

split-complementary

#ECF879 #79ADF8 #C479F8

monochromatic

#D5EA0C #E4F53F #ECF879 #F4FBB3 #FBFDE2

Accessibility & contrast

On white

1.15

#ECF879 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.27

#ECF879 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF879

18.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF879	#FFFFFF	#000000	##000000
##ECF879	1.00	1.15	18.27	18.27
#FFFFFF	1.15	1.00	21.00	21.00
#000000	18.27	21.00	1.00	1.00
##000000	18.27	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEE6D

Deuteranopia (green-blind)

#FFF080

Tritanopia (blue-blind)

#F9ECDB

Achromatopsia (no color)

#EFEFEF

Design tokens & code

CSS

--color: #ecf879;
/* rgb */ color: rgb(236, 248, 121);
/* oklch */ color: oklch(94.5% 0.151 113.8);

Tailwind

colors: {
  custom: {
    50: '#f4faa3',
    500: '#ecf879',
    950: '#000000',
  },
}

SCSS

$custom: #ecf879;
$custom-light: #f4faa3;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf879",
  "rgb": {
    "r": 236,
    "g": 248,
    "b": 121
  },
  "hsl": {
    "h": 65.669,
    "s": 90.071,
    "l": 72.353
  },
  "oklch": {
    "l": 0.94491,
    "c": 0.15146,
    "h": 113.8
  },
  "luminance": 0.86348
}

Semantic roles & 50–950 ramp

primary

#ECF879

secondary

#4F41D4

accent

#00E616

background

#FFFFFC

surface

#FFFFF6

border

#D7D7D0

text

#17170F

muted

#858580

Preview Lab

Preview with #ECF879

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

Preview Lab → · Contrast checker → · Palette generator →