#EFF571#EFF571

#EFF571 is a very light, vivid yellow. Relative luminance 0.848; OKLCH L 94.0% C 0.155 H 111.4°. Best body text is #000000 at 17.97:1 contrast (WCAG AA passes).

Color values

HEX	#EFF571
RGB	rgb(239, 245, 113)
HSL	hsl(63, 87%, 70%)
HSV	hsv(63, 54%, 96%)
CMYK	cmyk(2.4%, 0%, 53.9%, 3.9%)
CIE-LAB	lab(93.82, -19.19, 61.79)
CIE-LCH	lch(93.82, 64.70, 107.25°)
OKLab	oklab(94.01% -0.0564 0.144)
OKLCH	oklch(94.01% 0.155 111.4)
XYZ	xyz(71.2313, 84.8493, 28.2448)
Luminance	0.8485 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF571 #7771F5

analogous

#F5B971 #EFF571 #ADF571

triadic

#EFF571 #71EFF5 #F571EF

tetradic

#EFF571 #71F5B9 #7771F5 #F571AD

square

#EFF571 #71F5B9 #7771F5 #F571AD

split-complementary

#EFF571 #71ADF5 #B971F5

monochromatic

#D3DC10 #E9F138 #EFF571 #F5F9AA #FCFDE2

Accessibility & contrast

On white

1.17

#EFF571 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.97

#EFF571 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF571

17.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF571	#FFFFFF	#000000	##000000
##EFF571	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)

#FFEB64

Deuteranopia (green-blind)

#FFEF78

Tritanopia (blue-blind)

#FDE8D8

Achromatopsia (no color)

#EDEDED

Design tokens & code

CSS

--color: #eff571;
/* rgb */ color: rgb(239, 245, 113);
/* oklch */ color: oklch(94.0% 0.155 111.4);

Tailwind

colors: {
  custom: {
    50: '#f7f89e',
    500: '#eff571',
    950: '#000000',
  },
}

SCSS

$custom: #eff571;
$custom-light: #f7f89e;
$custom-dark: #000000;

JSON

{
  "hex": "#eff571",
  "rgb": {
    "r": 239,
    "g": 245,
    "b": 113
  },
  "hsl": {
    "h": 62.727,
    "s": 86.842,
    "l": 70.196
  },
  "oklch": {
    "l": 0.94006,
    "c": 0.15467,
    "h": 111.4
  },
  "luminance": 0.84848
}

Semantic roles & 50–950 ramp

primary

#EFF571

secondary

#423BCF

accent

#02E30C

background

#FFFFFC

surface

#FFFEF5

border

#D7D6CF

text

#17170F

muted

#858580

Preview Lab

Preview with #EFF571

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

Preview Lab → · Contrast checker → · Palette generator →