#ECF777#ECF777

#ECF777 is a very light, vivid yellow. Relative luminance 0.857; OKLCH L 94.3% C 0.152 H 113.4°. Best body text is #000000 at 18.14:1 contrast (WCAG AA passes).

Color values

HEX	#ECF777
RGB	rgb(236, 247, 119)
HSL	hsl(65, 89%, 72%)
HSV	hsv(65, 52%, 97%)
CMYK	cmyk(4.5%, 0%, 51.8%, 3.1%)
CIE-LAB	lab(94.18, -20.84, 59.48)
CIE-LCH	lch(94.18, 63.02, 109.31°)
OKLab	oklab(94.26% -0.0604 0.1397)
OKLCH	oklch(94.26% 0.152 113.4)
XYZ	xyz(71.1840, 85.6875, 30.2386)
Luminance	0.8569 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF777 #8277F7

analogous

#F7C277 #ECF777 #ACF777

triadic

#ECF777 #77ECF7 #F777EC

tetradic

#ECF777 #77F7C2 #8277F7 #F777AC

square

#ECF777 #77F7C2 #8277F7 #F777AC

split-complementary

#ECF777 #77ACF7 #C277F7

monochromatic

#D3E60E #E4F43D #ECF777 #F4FAB1 #FBFDE2

Accessibility & contrast

On white

1.16

#ECF777 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.14

#ECF777 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF777

18.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF777	#FFFFFF	#000000	##000000
##ECF777	1.00	1.16	18.14	18.14
#FFFFFF	1.16	1.00	21.00	21.00
#000000	18.14	21.00	1.00	1.00
##000000	18.14	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFED6B

Deuteranopia (green-blind)

#FFF07E

Tritanopia (blue-blind)

#F9EBDA

Achromatopsia (no color)

#EEEEEE

Design tokens & code

CSS

--color: #ecf777;
/* rgb */ color: rgb(236, 247, 119);
/* oklch */ color: oklch(94.3% 0.152 113.4);

Tailwind

colors: {
  custom: {
    50: '#f4f9a1',
    500: '#ecf777',
    950: '#000000',
  },
}

SCSS

$custom: #ecf777;
$custom-light: #f4f9a1;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf777",
  "rgb": {
    "r": 236,
    "g": 247,
    "b": 119
  },
  "hsl": {
    "h": 65.156,
    "s": 88.889,
    "l": 71.765
  },
  "oklch": {
    "l": 0.94258,
    "c": 0.15215,
    "h": 113.4
  },
  "luminance": 0.85686
}

Semantic roles & 50–950 ramp

primary

#ECF777

secondary

#4C40D2

accent

#00E614

background

#FFFFFC

surface

#FFFFF6

border

#D7D7D0

text

#17170F

muted

#858580

Preview Lab

Preview with #ECF777

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

Preview Lab → · Contrast checker → · Palette generator →