#EFFC71#EFFC71

#EFFC71 is a very light, vivid yellow. Relative luminance 0.892; OKLCH L 95.5% C 0.162 H 113.9°. Best body text is #000000 at 18.83:1 contrast (WCAG AA passes).

Color values

HEX	#EFFC71
RGB	rgb(239, 252, 113)
HSL	hsl(66, 96%, 72%)
HSV	hsv(66, 55%, 99%)
CMYK	cmyk(5.2%, 0%, 55.2%, 1.2%)
CIE-LAB	lab(95.65, -22.54, 63.87)
CIE-LCH	lch(95.65, 67.73, 109.44°)
OKLab	oklab(95.47% -0.0659 0.1485)
OKLCH	oklch(95.47% 0.162 113.9)
XYZ	xyz(73.3892, 89.1650, 28.9641)
Luminance	0.8916 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFFC71 #7E71FC

analogous

#FCC471 #EFFC71 #A9FC71

triadic

#EFFC71 #71EFFC #FC71EF

tetradic

#EFFC71 #71FCC4 #7E71FC #FC71A9

square

#EFFC71 #71FCC4 #7E71FC #FC71A9

split-complementary

#EFFC71 #71A9FC #C471FC

monochromatic

#D8EE05 #E8FB35 #EFFC71 #F6FDAD #FCFEE1

Accessibility & contrast

On white

1.12

#EFFC71 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.83

#EFFC71 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFFC71

18.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFFC71	#FFFFFF	#000000	##000000
##EFFC71	1.00	1.12	18.83	18.83
#FFFFFF	1.12	1.00	21.00	21.00
#000000	18.83	21.00	1.00	1.00
##000000	18.83	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF163

Deuteranopia (green-blind)

#FFF479

Tritanopia (blue-blind)

#FDEFDE

Achromatopsia (no color)

#F2F2F2

Design tokens & code

CSS

--color: #effc71;
/* rgb */ color: rgb(239, 252, 113);
/* oklch */ color: oklch(95.5% 0.162 113.9);

Tailwind

colors: {
  custom: {
    50: '#f7fd9e',
    500: '#effc71',
    950: '#000000',
  },
}

SCSS

$custom: #effc71;
$custom-light: #f7fd9e;
$custom-dark: #000000;

JSON

{
  "hex": "#effc71",
  "rgb": {
    "r": 239,
    "g": 252,
    "b": 113
  },
  "hsl": {
    "h": 65.612,
    "s": 95.862,
    "l": 71.569
  },
  "oklch": {
    "l": 0.95469,
    "c": 0.16245,
    "h": 113.9
  },
  "luminance": 0.89164
}

Semantic roles & 50–950 ramp

primary

#EFFC71

secondary

#4839D8

accent

#00E615

background

#FFFFFC

surface

#FFFFF5

border

#D7D7CF

text

#17170F

muted

#858580

Preview Lab

Preview with #EFFC71

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

Preview Lab → · Contrast checker → · Palette generator →