#ECF889#ECF889

#ECF889 is a very light, vivid yellow. Relative luminance 0.868; OKLCH L 94.7% C 0.136 H 114.1°. Best body text is #000000 at 18.35:1 contrast (WCAG AA passes).

Color values

HEX	#ECF889
RGB	rgb(236, 248, 137)
HSL	hsl(66, 89%, 75%)
HSV	hsv(66, 45%, 97%)
CMYK	cmyk(4.8%, 0%, 44.8%, 2.7%)
CIE-LAB	lab(94.64, -19.69, 51.72)
CIE-LCH	lch(94.64, 55.35, 110.84°)
OKLab	oklab(94.69% -0.0555 0.1241)
OKLCH	oklch(94.69% 0.136 114.1)
XYZ	xyz(72.6758, 86.7748, 36.5828)
Luminance	0.8677 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF889 #9589F8

analogous

#F8CC89 #ECF889 #B5F889

triadic

#ECF889 #89ECF8 #F889EC

tetradic

#ECF889 #89F8CC #9589F8 #F889B5

square

#ECF889 #89F8CC #9589F8 #F889B5

split-complementary

#ECF889 #89B5F8 #CC89F8

monochromatic

#D9F115 #E3F54F #ECF889 #F5FBC3 #FAFDE2

Accessibility & contrast

On white

1.14

#ECF889 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.35

#ECF889 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF889

18.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF889	#FFFFFF	#000000	##000000
##ECF889	1.00	1.14	18.35	18.35
#FFFFFF	1.14	1.00	21.00	21.00
#000000	18.35	21.00	1.00	1.00
##000000	18.35	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEE80

Deuteranopia (green-blind)

#FFF18F

Tritanopia (blue-blind)

#F8EDDE

Achromatopsia (no color)

#F0F0F0

Design tokens & code

CSS

--color: #ecf889;
/* rgb */ color: rgb(236, 248, 137);
/* oklch */ color: oklch(94.7% 0.136 114.1);

Tailwind

colors: {
  custom: {
    50: '#f4faad',
    500: '#ecf889',
    950: '#000000',
  },
}

SCSS

$custom: #ecf889;
$custom-light: #f4faad;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf889",
  "rgb": {
    "r": 236,
    "g": 248,
    "b": 137
  },
  "hsl": {
    "h": 66.486,
    "s": 88.8,
    "l": 75.49
  },
  "oklch": {
    "l": 0.94694,
    "c": 0.13593,
    "h": 114.1
  },
  "luminance": 0.86774
}

Semantic roles & 50–950 ramp

primary

#ECF889

secondary

#5E4FD6

accent

#00E519

background

#FFFFFD

surface

#FEFFF7

border

#D6D7D0

text

#171710

muted

#858581

Preview Lab

Preview with #ECF889

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

Preview Lab → · Contrast checker → · Palette generator →