#ECF09D#ECF09D

#ECF09D is a very light, moderate yellow. Relative luminance 0.826; OKLCH L 93.3% C 0.105 H 110.6°. Best body text is #000000 at 17.52:1 contrast (WCAG AA passes).

Color values

HEX	#ECF09D
RGB	rgb(236, 240, 157)
HSL	hsl(63, 73%, 78%)
HSV	hsv(63, 35%, 94%)
CMYK	cmyk(1.7%, 0%, 34.6%, 5.9%)
CIE-LAB	lab(92.83, -13.66, 39.73)
CIE-LCH	lch(92.83, 42.01, 108.97°)
OKLab	oklab(93.34% -0.0368 0.0979)
OKLCH	oklch(93.34% 0.105 110.6)
XYZ	xyz(71.8385, 82.5885, 44.0485)
Luminance	0.8259 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF09D #A19DF0

analogous

#F0CB9D #ECF09D #C2F09D

triadic

#ECF09D #9DECF0 #F09DEC

tetradic

#ECF09D #9DF0CB #A19DF0 #F09DC2

square

#ECF09D #9DF0CB #A19DF0 #F09DC2

split-complementary

#ECF09D #9DC2F0 #CB9DF0

monochromatic

#D7E033 #E2E868 #ECF09D #F6F8D2 #FAFBE4

Accessibility & contrast

On white

1.20

#ECF09D on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.52

#ECF09D on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF09D

17.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF09D	#FFFFFF	#000000	##000000
##ECF09D	1.00	1.20	17.52	17.52
#FFFFFF	1.20	1.00	21.00	21.00
#000000	17.52	21.00	1.00	1.00
##000000	17.52	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FCE997

Deuteranopia (green-blind)

#FDECA1

Tritanopia (blue-blind)

#F7E6DB

Achromatopsia (no color)

#EAEAEA

Design tokens & code

CSS

--color: #ecf09d;
/* rgb */ color: rgb(236, 240, 157);
/* oklch */ color: oklch(93.3% 0.105 110.6);

Tailwind

colors: {
  custom: {
    50: '#f3f4bb',
    500: '#ecf09d',
    950: '#000000',
  },
}

SCSS

$custom: #ecf09d;
$custom-light: #f3f4bb;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf09d",
  "rgb": {
    "r": 236,
    "g": 240,
    "b": 157
  },
  "hsl": {
    "h": 62.892,
    "s": 73.451,
    "l": 77.843
  },
  "oklch": {
    "l": 0.93342,
    "c": 0.10461,
    "h": 110.6
  },
  "luminance": 0.82587
}

Semantic roles & 50–950 ramp

primary

#ECF09D

secondary

#6964CD

accent

#10D619

background

#FFFFFD

surface

#FEFEF8

border

#D6D6D1

text

#171712

muted

#858582

Preview Lab

Preview with #ECF09D

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

Preview Lab → · Contrast checker → · Palette generator →