#ECF59A#ECF59A

#ECF59A is a very light, moderate yellow. Relative luminance 0.855; OKLCH L 94.3% C 0.114 H 113.2°. Best body text is #000000 at 18.09:1 contrast (WCAG AA passes).

Color values

HEX	#ECF59A
RGB	rgb(236, 245, 154)
HSL	hsl(66, 82%, 78%)
HSV	hsv(66, 37%, 96%)
CMYK	cmyk(3.7%, 0%, 37.1%, 3.9%)
CIE-LAB	lab(94.09, -16.45, 42.83)
CIE-LCH	lch(94.09, 45.88, 111.02°)
OKLab	oklab(94.32% -0.045 0.1049)
OKLCH	oklch(94.32% 0.114 113.2)
XYZ	xyz(73.0777, 85.4717, 43.2136)
Luminance	0.8547 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF59A #A39AF5

analogous

#F5D09A #ECF59A #BEF59A

triadic

#ECF59A #9AECF5 #F59AEC

tetradic

#ECF59A #9AF5D0 #A39AF5 #F59ABE

square

#ECF59A #9AF5D0 #A39AF5 #F59ABE

split-complementary

#ECF59A #9ABEF5 #D09AF5

monochromatic

#D7EA2B #E2EF62 #ECF59A #F6FBD2 #FAFCE3

Accessibility & contrast

On white

1.16

#ECF59A on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.09

#ECF59A on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF59A

18.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF59A	#FFFFFF	#000000	##000000
##ECF59A	1.00	1.16	18.09	18.09
#FFFFFF	1.16	1.00	21.00	21.00
#000000	18.09	21.00	1.00	1.00
##000000	18.09	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFED93

Deuteranopia (green-blind)

#FFEF9E

Tritanopia (blue-blind)

#F6EBDE

Achromatopsia (no color)

#EEEEEE

Design tokens & code

CSS

--color: #ecf59a;
/* rgb */ color: rgb(236, 245, 154);
/* oklch */ color: oklch(94.3% 0.114 113.2);

Tailwind

colors: {
  custom: {
    50: '#f3f8b9',
    500: '#ecf59a',
    950: '#000000',
  },
}

SCSS

$custom: #ecf59a;
$custom-light: #f3f8b9;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf59a",
  "rgb": {
    "r": 236,
    "g": 245,
    "b": 154
  },
  "hsl": {
    "h": 65.934,
    "s": 81.982,
    "l": 78.235
  },
  "oklch": {
    "l": 0.94324,
    "c": 0.11416,
    "h": 113.2
  },
  "luminance": 0.85471
}

Semantic roles & 50–950 ramp

primary

#ECF59A

secondary

#6B5FD4

accent

#07DE1C

background

#FFFFFD

surface

#FEFEF8

border

#D6D6D1

text

#171711

muted

#858581

Preview Lab

Preview with #ECF59A

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

Preview Lab → · Contrast checker → · Palette generator →