#ECF779#ECF779

#ECF779 is a very light, vivid yellow. Relative luminance 0.857; OKLCH L 94.3% C 0.150 H 113.4°. Best body text is #000000 at 18.15:1 contrast (WCAG AA passes).

Color values

HEX	#ECF779
RGB	rgb(236, 247, 121)
HSL	hsl(65, 89%, 72%)
HSV	hsv(65, 51%, 97%)
CMYK	cmyk(4.5%, 0%, 51%, 3.1%)
CIE-LAB	lab(94.20, -20.67, 58.60)
CIE-LCH	lch(94.20, 62.14, 109.43°)
OKLab	oklab(94.28% -0.0597 0.1379)
OKLCH	oklch(94.28% 0.15 113.4)
XYZ	xyz(71.3053, 85.7361, 30.8779)
Luminance	0.8573 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF779 #8479F7

analogous

#F7C379 #ECF779 #ADF779

triadic

#ECF779 #79ECF7 #F779EC

tetradic

#ECF779 #79F7C3 #8479F7 #F779AD

square

#ECF779 #79F7C3 #8479F7 #F779AD

split-complementary

#ECF779 #79ADF7 #C379F7

monochromatic

#D5E80E #E4F43F #ECF779 #F4FAB3 #FBFDE2

Accessibility & contrast

On white

1.16

#ECF779 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.15

#ECF779 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF779

18.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF779	#FFFFFF	#000000	##000000
##ECF779	1.00	1.16	18.15	18.15
#FFFFFF	1.16	1.00	21.00	21.00
#000000	18.15	21.00	1.00	1.00
##000000	18.15	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFED6D

Deuteranopia (green-blind)

#FFF080

Tritanopia (blue-blind)

#F9EBDB

Achromatopsia (no color)

#EEEEEE

Design tokens & code

CSS

--color: #ecf779;
/* rgb */ color: rgb(236, 247, 121);
/* oklch */ color: oklch(94.3% 0.150 113.4);

Tailwind

colors: {
  custom: {
    50: '#f4f9a3',
    500: '#ecf779',
    950: '#000000',
  },
}

SCSS

$custom: #ecf779;
$custom-light: #f4f9a3;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf779",
  "rgb": {
    "r": 236,
    "g": 247,
    "b": 121
  },
  "hsl": {
    "h": 65.238,
    "s": 88.732,
    "l": 72.157
  },
  "oklch": {
    "l": 0.94282,
    "c": 0.1503,
    "h": 113.4
  },
  "luminance": 0.85735
}

Semantic roles & 50–950 ramp

primary

#ECF779

secondary

#4E41D3

accent

#00E514

background

#FFFFFC

surface

#FFFFF6

border

#D7D7D0

text

#17170F

muted

#858580

Preview Lab

Preview with #ECF779

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

Preview Lab → · Contrast checker → · Palette generator →