#EFF489#EFF489

#EFF489 is a very light, vivid yellow. Relative luminance 0.849; OKLCH L 94.1% C 0.131 H 111.0°. Best body text is #000000 at 17.97:1 contrast (WCAG AA passes).

Color values

HEX	#EFF489
RGB	rgb(239, 244, 137)
HSL	hsl(63, 83%, 75%)
HSV	hsv(63, 44%, 96%)
CMYK	cmyk(2%, 0%, 43.9%, 4.3%)
CIE-LAB	lab(93.82, -16.60, 50.77)
CIE-LCH	lch(93.82, 53.41, 108.11°)
OKLab	oklab(94.1% -0.0468 0.1219)
OKLCH	oklch(94.1% 0.131 111)
XYZ	xyz(72.4638, 84.8596, 36.2243)
Luminance	0.8486 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF489 #8E89F4

analogous

#F4C489 #EFF489 #B9F489

triadic

#EFF489 #89EFF4 #F489EF

tetradic

#EFF489 #89F4C4 #8E89F4 #F489B9

square

#EFF489 #89F4C4 #8E89F4 #F489B9

split-complementary

#EFF489 #89B9F4 #C489F4

monochromatic

#E0EA19 #E7EF51 #EFF489 #F7F9C1 #FBFCE3

Accessibility & contrast

On white

1.17

#EFF489 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.97

#EFF489 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF489

17.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF489	#FFFFFF	#000000	##000000
##EFF489	1.00	1.17	17.97	17.97
#FFFFFF	1.17	1.00	21.00	21.00
#000000	17.97	21.00	1.00	1.00
##000000	17.97	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEC80

Deuteranopia (green-blind)

#FFEF8E

Tritanopia (blue-blind)

#FCE9DB

Achromatopsia (no color)

#EDEDED

Design tokens & code

CSS

--color: #eff489;
/* rgb */ color: rgb(239, 244, 137);
/* oklch */ color: oklch(94.1% 0.131 111.0);

Tailwind

colors: {
  custom: {
    50: '#f6f7ad',
    500: '#eff489',
    950: '#000000',
  },
}

SCSS

$custom: #eff489;
$custom-light: #f6f7ad;
$custom-dark: #000000;

JSON

{
  "hex": "#eff489",
  "rgb": {
    "r": 239,
    "g": 244,
    "b": 137
  },
  "hsl": {
    "h": 62.804,
    "s": 82.946,
    "l": 74.706
  },
  "oklch": {
    "l": 0.94095,
    "c": 0.13062,
    "h": 111
  },
  "luminance": 0.84858
}

Semantic roles & 50–950 ramp

primary

#EFF489

secondary

#5650D1

accent

#06DF10

background

#FFFFFD

surface

#FFFEF7

border

#D7D6D0

text

#171710

muted

#858581

Preview Lab

Preview with #EFF489

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

Preview Lab → · Contrast checker → · Palette generator →