#ECF789#ECF789

#ECF789 is a very light, vivid yellow. Relative luminance 0.862; OKLCH L 94.5% C 0.135 H 113.7°. Best body text is #000000 at 18.23:1 contrast (WCAG AA passes).

Color values

HEX	#ECF789
RGB	rgb(236, 247, 137)
HSL	hsl(66, 87%, 75%)
HSV	hsv(66, 45%, 97%)
CMYK	cmyk(4.5%, 0%, 44.5%, 3.1%)
CIE-LAB	lab(94.38, -19.21, 51.40)
CIE-LCH	lch(94.38, 54.88, 110.49°)
OKLab	oklab(94.49% -0.0541 0.1234)
OKLCH	oklch(94.49% 0.135 113.7)
XYZ	xyz(72.3691, 86.1616, 36.4805)
Luminance	0.8616 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF789 #9489F7

analogous

#F7CB89 #ECF789 #B5F789

triadic

#ECF789 #89ECF7 #F789EC

tetradic

#ECF789 #89F7CB #9489F7 #F789B5

square

#ECF789 #89F7CB #9489F7 #F789B5

split-complementary

#ECF789 #89B5F7 #CB89F7

monochromatic

#DAEF16 #E3F350 #ECF789 #F5FBC2 #FAFDE2

Accessibility & contrast

On white

1.15

#ECF789 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.23

#ECF789 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF789

18.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF789	#FFFFFF	#000000	##000000
##ECF789	1.00	1.15	18.23	18.23
#FFFFFF	1.15	1.00	21.00	21.00
#000000	18.23	21.00	1.00	1.00
##000000	18.23	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEE80

Deuteranopia (green-blind)

#FFF08E

Tritanopia (blue-blind)

#F8ECDD

Achromatopsia (no color)

#EFEFEF

Design tokens & code

CSS

--color: #ecf789;
/* rgb */ color: rgb(236, 247, 137);
/* oklch */ color: oklch(94.5% 0.135 113.7);

Tailwind

colors: {
  custom: {
    50: '#f4f9ad',
    500: '#ecf789',
    950: '#000000',
  },
}

SCSS

$custom: #ecf789;
$custom-light: #f4f9ad;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf789",
  "rgb": {
    "r": 236,
    "g": 247,
    "b": 137
  },
  "hsl": {
    "h": 66,
    "s": 87.302,
    "l": 75.294
  },
  "oklch": {
    "l": 0.94486,
    "c": 0.13473,
    "h": 113.7
  },
  "luminance": 0.86161
}

Semantic roles & 50–950 ramp

primary

#ECF789

secondary

#5D50D5

accent

#02E418

background

#FFFFFD

surface

#FEFFF7

border

#D6D7D0

text

#171710

muted

#858581

Preview Lab

Preview with #ECF789

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

Preview Lab → · Contrast checker → · Palette generator →