#ECF09C#ECF09C

#ECF09C is a very light, moderate yellow. Relative luminance 0.826; OKLCH L 93.3% C 0.106 H 110.6°. Best body text is #000000 at 17.51:1 contrast (WCAG AA passes).

Color values

HEX	#ECF09C
RGB	rgb(236, 240, 156)
HSL	hsl(63, 74%, 78%)
HSV	hsv(63, 35%, 94%)
CMYK	cmyk(1.7%, 0%, 35%, 5.9%)
CIE-LAB	lab(92.82, -13.78, 40.20)
CIE-LCH	lch(92.82, 42.50, 108.91°)
OKLab	oklab(93.33% -0.0372 0.099)
OKLCH	oklch(93.33% 0.106 110.6)
XYZ	xyz(71.7535, 82.5545, 43.6007)
Luminance	0.8255 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF09C #A09CF0

analogous

#F0CA9C #ECF09C #C2F09C

triadic

#ECF09C #9CECF0 #F09CEC

tetradic

#ECF09C #9CF0CA #A09CF0 #F09CC2

square

#ECF09C #9CF0CA #A09CF0 #F09CC2

split-complementary

#ECF09C #9CC2F0 #CA9CF0

monochromatic

#D8E032 #E2E867 #ECF09C #F6F8D1 #FAFBE4

Accessibility & contrast

On white

1.20

#ECF09C on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.51

#ECF09C on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF09C

17.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF09C	#FFFFFF	#000000	##000000
##ECF09C	1.00	1.20	17.51	17.51
#FFFFFF	1.20	1.00	21.00	21.00
#000000	17.51	21.00	1.00	1.00
##000000	17.51	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FCE996

Deuteranopia (green-blind)

#FDECA0

Tritanopia (blue-blind)

#F7E6DB

Achromatopsia (no color)

#EAEAEA

Design tokens & code

CSS

--color: #ecf09c;
/* rgb */ color: rgb(236, 240, 156);
/* oklch */ color: oklch(93.3% 0.106 110.6);

Tailwind

colors: {
  custom: {
    50: '#f3f4ba',
    500: '#ecf09c',
    950: '#000000',
  },
}

SCSS

$custom: #ecf09c;
$custom-light: #f3f4ba;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf09c",
  "rgb": {
    "r": 236,
    "g": 240,
    "b": 156
  },
  "hsl": {
    "h": 62.857,
    "s": 73.684,
    "l": 77.647
  },
  "oklch": {
    "l": 0.93325,
    "c": 0.10574,
    "h": 110.6
  },
  "luminance": 0.82553
}

Semantic roles & 50–950 ramp

primary

#ECF09C

secondary

#6863CD

accent

#10D619

background

#FFFFFD

surface

#FEFEF8

border

#D6D6D1

text

#171712

muted

#858582

Preview Lab

Preview with #ECF09C

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

Preview Lab → · Contrast checker → · Palette generator →