#EFF478#EFF478

#EFF478 is a very light, vivid yellow. Relative luminance 0.844; OKLCH L 93.9% C 0.147 H 111.0°. Best body text is #000000 at 17.88:1 contrast (WCAG AA passes).

Color values

HEX	#EFF478
RGB	rgb(239, 244, 120)
HSL	hsl(62, 85%, 71%)
HSV	hsv(62, 51%, 96%)
CMYK	cmyk(2%, 0%, 50.8%, 4.3%)
CIE-LAB	lab(93.63, -18.14, 58.44)
CIE-LCH	lch(93.63, 61.19, 107.25°)
OKLab	oklab(93.88% -0.0528 0.1375)
OKLCH	oklch(93.88% 0.147 111)
XYZ	xyz(71.3390, 84.4097, 30.3003)
Luminance	0.8441 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF478 #7D78F4

analogous

#F4BB78 #EFF478 #B1F478

triadic

#EFF478 #78EFF4 #F478EF

tetradic

#EFF478 #78F4BB #7D78F4 #F478B1

square

#EFF478 #78F4BB #7D78F4 #F478B1

split-complementary

#EFF478 #78B1F4 #BB78F4

monochromatic

#D7DF12 #E8EF3F #EFF478 #F6F9B1 #FCFDE3

Accessibility & contrast

On white

1.17

#EFF478 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.88

#EFF478 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF478

17.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF478	#FFFFFF	#000000	##000000
##EFF478	1.00	1.17	17.88	17.88
#FFFFFF	1.17	1.00	21.00	21.00
#000000	17.88	21.00	1.00	1.00
##000000	17.88	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEB6C

Deuteranopia (green-blind)

#FFEE7F

Tritanopia (blue-blind)

#FDE7D8

Achromatopsia (no color)

#EDEDED

Design tokens & code

CSS

--color: #eff478;
/* rgb */ color: rgb(239, 244, 120);
/* oklch */ color: oklch(93.9% 0.147 111.0);

Tailwind

colors: {
  custom: {
    50: '#f6f7a2',
    500: '#eff478',
    950: '#000000',
  },
}

SCSS

$custom: #eff478;
$custom-light: #f6f7a2;
$custom-dark: #000000;

JSON

{
  "hex": "#eff478",
  "rgb": {
    "r": 239,
    "g": 244,
    "b": 120
  },
  "hsl": {
    "h": 62.419,
    "s": 84.932,
    "l": 71.373
  },
  "oklch": {
    "l": 0.93877,
    "c": 0.14724,
    "h": 111
  },
  "luminance": 0.84408
}

Semantic roles & 50–950 ramp

primary

#EFF478

secondary

#4741CF

accent

#04E10D

background

#FFFFFC

surface

#FFFEF6

border

#D7D6D0

text

#17170F

muted

#858580

Preview Lab

Preview with #EFF478

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

Preview Lab → · Contrast checker → · Palette generator →