#ECF878#ECF878

#ECF878 is a very light, vivid yellow. Relative luminance 0.863; OKLCH L 94.5% C 0.152 H 113.8°. Best body text is #000000 at 18.26:1 contrast (WCAG AA passes).

Color values

HEX	#ECF878
RGB	rgb(236, 248, 120)
HSL	hsl(66, 90%, 72%)
HSV	hsv(66, 52%, 97%)
CMYK	cmyk(4.8%, 0%, 51.6%, 2.7%)
CIE-LAB	lab(94.45, -21.24, 59.35)
CIE-LCH	lch(94.45, 63.03, 109.69°)
OKLab	oklab(94.48% -0.0614 0.1395)
OKLCH	oklch(94.48% 0.152 113.8)
XYZ	xyz(71.5510, 86.3249, 30.6588)
Luminance	0.8632 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF878 #8478F8

analogous

#F8C478 #ECF878 #ACF878

triadic

#ECF878 #78ECF8 #F878EC

tetradic

#ECF878 #78F8C4 #8478F8 #F878AC

square

#ECF878 #78F8C4 #8478F8 #F878AC

split-complementary

#ECF878 #78ACF8 #C478F8

monochromatic

#D5E90C #E4F53E #ECF878 #F4FBB2 #FBFDE2

Accessibility & contrast

On white

1.15

#ECF878 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.26

#ECF878 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF878

18.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF878	#FFFFFF	#000000	##000000
##ECF878	1.00	1.15	18.26	18.26
#FFFFFF	1.15	1.00	21.00	21.00
#000000	18.26	21.00	1.00	1.00
##000000	18.26	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEE6C

Deuteranopia (green-blind)

#FFF07F

Tritanopia (blue-blind)

#F9ECDB

Achromatopsia (no color)

#EFEFEF

Design tokens & code

CSS

--color: #ecf878;
/* rgb */ color: rgb(236, 248, 120);
/* oklch */ color: oklch(94.5% 0.152 113.8);

Tailwind

colors: {
  custom: {
    50: '#f4faa2',
    500: '#ecf878',
    950: '#000000',
  },
}

SCSS

$custom: #ecf878;
$custom-light: #f4faa2;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf878",
  "rgb": {
    "r": 236,
    "g": 248,
    "b": 120
  },
  "hsl": {
    "h": 65.625,
    "s": 90.141,
    "l": 72.157
  },
  "oklch": {
    "l": 0.94479,
    "c": 0.15238,
    "h": 113.8
  },
  "luminance": 0.86324
}

Semantic roles & 50–950 ramp

primary

#ECF878

secondary

#4E40D4

accent

#00E616

background

#FFFFFC

surface

#FFFFF6

border

#D7D7D0

text

#17170F

muted

#858580

Preview Lab

Preview with #ECF878

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

Preview Lab → · Contrast checker → · Palette generator →