#ECF77A#ECF77A

#ECF77A is a very light, vivid yellow. Relative luminance 0.858; OKLCH L 94.3% C 0.149 H 113.4°. Best body text is #000000 at 18.15:1 contrast (WCAG AA passes).

Color values

HEX	#ECF77A
RGB	rgb(236, 247, 122)
HSL	hsl(65, 89%, 72%)
HSV	hsv(65, 51%, 97%)
CMYK	cmyk(4.5%, 0%, 50.6%, 3.1%)
CIE-LAB	lab(94.21, -20.59, 58.16)
CIE-LCH	lch(94.21, 61.70, 109.49°)
OKLab	oklab(94.29% -0.0594 0.1371)
OKLCH	oklch(94.29% 0.149 113.4)
XYZ	xyz(71.3670, 85.7607, 31.2025)
Luminance	0.8576 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF77A #857AF7

analogous

#F7C47A #ECF77A #AEF77A

triadic

#ECF77A #7AECF7 #F77AEC

tetradic

#ECF77A #7AF7C4 #857AF7 #F77AAE

square

#ECF77A #7AF7C4 #857AF7 #F77AAE

split-complementary

#ECF77A #7AAEF7 #C47AF7

monochromatic

#D5E90E #E4F440 #ECF77A #F4FAB4 #FBFDE2

Accessibility & contrast

On white

1.16

#ECF77A on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.15

#ECF77A on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF77A

18.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF77A	#FFFFFF	#000000	##000000
##ECF77A	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)

#FFED6E

Deuteranopia (green-blind)

#FFF081

Tritanopia (blue-blind)

#F9EBDB

Achromatopsia (no color)

#EEEEEE

Design tokens & code

CSS

--color: #ecf77a;
/* rgb */ color: rgb(236, 247, 122);
/* oklch */ color: oklch(94.3% 0.149 113.4);

Tailwind

colors: {
  custom: {
    50: '#f4f9a3',
    500: '#ecf77a',
    950: '#000000',
  },
}

SCSS

$custom: #ecf77a;
$custom-light: #f4f9a3;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf77a",
  "rgb": {
    "r": 236,
    "g": 247,
    "b": 122
  },
  "hsl": {
    "h": 65.28,
    "s": 88.652,
    "l": 72.353
  },
  "oklch": {
    "l": 0.94293,
    "c": 0.14938,
    "h": 113.4
  },
  "luminance": 0.8576
}

Semantic roles & 50–950 ramp

primary

#ECF77A

secondary

#4F42D3

accent

#00E514

background

#FFFFFC

surface

#FFFFF6

border

#D7D7D0

text

#17170F

muted

#858580

Preview Lab

Preview with #ECF77A

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

Preview Lab → · Contrast checker → · Palette generator →