#ECF689#ECF689

#ECF689 is a very light, vivid yellow. Relative luminance 0.856; OKLCH L 94.3% C 0.134 H 113.3°. Best body text is #000000 at 18.11:1 contrast (WCAG AA passes).

Color values

HEX	#ECF689
RGB	rgb(236, 246, 137)
HSL	hsl(66, 86%, 75%)
HSV	hsv(66, 44%, 96%)
CMYK	cmyk(4.1%, 0%, 44.3%, 3.5%)
CIE-LAB	lab(94.12, -18.73, 51.08)
CIE-LCH	lch(94.12, 54.41, 110.13°)
OKLab	oklab(94.28% -0.0527 0.1227)
OKLCH	oklch(94.28% 0.134 113.3)
XYZ	xyz(72.0642, 85.5516, 36.3789)
Luminance	0.8555 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF689 #9389F6

analogous

#F6CA89 #ECF689 #B5F689

triadic

#ECF689 #89ECF6 #F689EC

tetradic

#ECF689 #89F6CA #9389F6 #F689B5

square

#ECF689 #89F6CA #9389F6 #F689B5

split-complementary

#ECF689 #89B5F6 #CA89F6

monochromatic

#DAED17 #E3F250 #ECF689 #F5FAC2 #FAFDE3

Accessibility & contrast

On white

1.16

#ECF689 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.11

#ECF689 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF689

18.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF689	#FFFFFF	#000000	##000000
##ECF689	1.00	1.16	18.11	18.11
#FFFFFF	1.16	1.00	21.00	21.00
#000000	18.11	21.00	1.00	1.00
##000000	18.11	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFED80

Deuteranopia (green-blind)

#FFEF8E

Tritanopia (blue-blind)

#F8EBDC

Achromatopsia (no color)

#EEEEEE

Design tokens & code

CSS

--color: #ecf689;
/* rgb */ color: rgb(236, 246, 137);
/* oklch */ color: oklch(94.3% 0.134 113.3);

Tailwind

colors: {
  custom: {
    50: '#f4f9ad',
    500: '#ecf689',
    950: '#000000',
  },
}

SCSS

$custom: #ecf689;
$custom-light: #f4f9ad;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf689",
  "rgb": {
    "r": 236,
    "g": 246,
    "b": 137
  },
  "hsl": {
    "h": 65.505,
    "s": 85.827,
    "l": 75.098
  },
  "oklch": {
    "l": 0.94277,
    "c": 0.13352,
    "h": 113.3
  },
  "luminance": 0.85551
}

Semantic roles & 50–950 ramp

primary

#ECF689

secondary

#5C50D3

accent

#03E218

background

#FFFFFD

surface

#FEFFF7

border

#D6D7D0

text

#171710

muted

#858581

Preview Lab

Preview with #ECF689

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

Preview Lab → · Contrast checker → · Palette generator →