#ECF28C#ECF28C

#ECF28C is a very light, vivid yellow. Relative luminance 0.832; OKLCH L 93.5% C 0.126 H 111.5°. Best body text is #000000 at 17.65:1 contrast (WCAG AA passes).

Color values

HEX	#ECF28C
RGB	rgb(236, 242, 140)
HSL	hsl(64, 80%, 75%)
HSV	hsv(64, 42%, 95%)
CMYK	cmyk(2.5%, 0%, 42.1%, 5.1%)
CIE-LAB	lab(93.12, -16.49, 48.41)
CIE-LCH	lch(93.12, 51.14, 108.81°)
OKLab	oklab(93.49% -0.0461 0.1169)
OKLCH	oklch(93.49% 0.126 111.5)
XYZ	xyz(71.0788, 83.2318, 37.1268)
Luminance	0.8323 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF28C #928CF2

analogous

#F2C58C #ECF28C #B9F28C

triadic

#ECF28C #8CECF2 #F28CEC

tetradic

#ECF28C #8CF2C5 #928CF2 #F28CB9

square

#ECF28C #8CF2C5 #928CF2 #F28CB9

split-complementary

#ECF28C #8CB9F2 #C58CF2

monochromatic

#DAE61E #E3EC55 #ECF28C #F5F8C3 #FAFCE4

Accessibility & contrast

On white

1.19

#ECF28C on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.65

#ECF28C on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF28C

17.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF28C	#FFFFFF	#000000	##000000
##ECF28C	1.00	1.19	17.65	17.65
#FFFFFF	1.19	1.00	21.00	21.00
#000000	17.65	21.00	1.00	1.00
##000000	17.65	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEA84

Deuteranopia (green-blind)

#FFED91

Tritanopia (blue-blind)

#F8E7DA

Achromatopsia (no color)

#EBEBEB

Design tokens & code

CSS

--color: #ecf28c;
/* rgb */ color: rgb(236, 242, 140);
/* oklch */ color: oklch(93.5% 0.126 111.5);

Tailwind

colors: {
  custom: {
    50: '#f4f6af',
    500: '#ecf28c',
    950: '#000000',
  },
}

SCSS

$custom: #ecf28c;
$custom-light: #f4f6af;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf28c",
  "rgb": {
    "r": 236,
    "g": 242,
    "b": 140
  },
  "hsl": {
    "h": 63.529,
    "s": 79.687,
    "l": 74.902
  },
  "oklch": {
    "l": 0.93489,
    "c": 0.12564,
    "h": 111.5
  },
  "luminance": 0.83231
}

Semantic roles & 50–950 ramp

primary

#ECF28C

secondary

#5B54CE

accent

#0ADC16

background

#FFFFFD

surface

#FEFEF7

border

#D6D6D0

text

#171710

muted

#858581

Preview Lab

Preview with #ECF28C

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

Preview Lab → · Contrast checker → · Palette generator →