#ECF77D#ECF77D

#ECF77D is a very light, vivid yellow. Relative luminance 0.858; OKLCH L 94.3% C 0.147 H 113.5°. Best body text is #000000 at 18.17:1 contrast (WCAG AA passes).

Color values

HEX	#ECF77D
RGB	rgb(236, 247, 125)
HSL	hsl(65, 88%, 73%)
HSV	hsv(65, 49%, 97%)
CMYK	cmyk(4.5%, 0%, 49.4%, 3.1%)
CIE-LAB	lab(94.24, -20.33, 56.83)
CIE-LCH	lch(94.24, 60.36, 109.68°)
OKLab	oklab(94.33% -0.0583 0.1344)
OKLCH	oklch(94.33% 0.147 113.5)
XYZ	xyz(71.5557, 85.8362, 32.1966)
Luminance	0.8583 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF77D #887DF7

analogous

#F7C57D #ECF77D #AFF77D

triadic

#ECF77D #7DECF7 #F77DEC

tetradic

#ECF77D #7DF7C5 #887DF7 #F77DAF

square

#ECF77D #7DF7C5 #887DF7 #F77DAF

split-complementary

#ECF77D #7DAFF7 #C57DF7

monochromatic

#D7EB0E #E4F343 #ECF77D #F4FBB7 #FBFDE2

Accessibility & contrast

On white

1.16

#ECF77D on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.17

#ECF77D on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF77D

18.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF77D	#FFFFFF	#000000	##000000
##ECF77D	1.00	1.16	18.17	18.17
#FFFFFF	1.16	1.00	21.00	21.00
#000000	18.17	21.00	1.00	1.00
##000000	18.17	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFED72

Deuteranopia (green-blind)

#FFF083

Tritanopia (blue-blind)

#F9EBDB

Achromatopsia (no color)

#EEEEEE

Design tokens & code

CSS

--color: #ecf77d;
/* rgb */ color: rgb(236, 247, 125);
/* oklch */ color: oklch(94.3% 0.147 113.5);

Tailwind

colors: {
  custom: {
    50: '#f4f9a5',
    500: '#ecf77d',
    950: '#000000',
  },
}

SCSS

$custom: #ecf77d;
$custom-light: #f4f9a5;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf77d",
  "rgb": {
    "r": 236,
    "g": 247,
    "b": 125
  },
  "hsl": {
    "h": 65.41,
    "s": 88.406,
    "l": 72.941
  },
  "oklch": {
    "l": 0.9433,
    "c": 0.14655,
    "h": 113.5
  },
  "luminance": 0.85835
}

Semantic roles & 50–950 ramp

primary

#ECF77D

secondary

#5245D3

accent

#00E515

background

#FFFFFC

surface

#FFFFF6

border

#D7D7D0

text

#17170F

muted

#858580

Preview Lab

Preview with #ECF77D

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

Preview Lab → · Contrast checker → · Palette generator →