#EFFF71#EFFF71

#EFFF71 is a very light, vivid yellow. Relative luminance 0.911; OKLCH L 96.1% C 0.166 H 114.9°. Best body text is #000000 at 19.21:1 contrast (WCAG AA passes).

Color values

HEX	#EFFF71
RGB	rgb(239, 255, 113)
HSL	hsl(67, 100%, 72%)
HSV	hsv(67, 56%, 100%)
CMYK	cmyk(6.3%, 0%, 55.7%, 0%)
CIE-LAB	lab(96.44, -23.96, 64.76)
CIE-LCH	lch(96.44, 69.05, 110.31°)
OKLab	oklab(96.1% -0.0699 0.1504)
OKLCH	oklch(96.1% 0.166 114.9)
XYZ	xyz(74.3387, 91.0641, 29.2806)
Luminance	0.9106 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFFF71 #8171FF

analogous

#FFC871 #EFFF71 #A8FF71

triadic

#EFFF71 #71EFFF #FF71EF

tetradic

#EFFF71 #71FFC8 #8171FF #FF71A8

square

#EFFF71 #71FFC8 #8171FF #FF71A8

split-complementary

#EFFF71 #71A8FF #C871FF

monochromatic

#DAF600 #E8FF34 #EFFF71 #F6FFAE #FCFFE0

Accessibility & contrast

On white

1.09

#EFFF71 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

19.21

#EFFF71 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFFF71

19.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFFF71	#FFFFFF	#000000	##000000
##EFFF71	1.00	1.09	19.21	19.21
#FFFFFF	1.09	1.00	21.00	21.00
#000000	19.21	21.00	1.00	1.00
##000000	19.21	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF462

Deuteranopia (green-blind)

#FFF679

Tritanopia (blue-blind)

#FCF2E0

Achromatopsia (no color)

#F5F5F5

Design tokens & code

CSS

--color: #efff71;
/* rgb */ color: rgb(239, 255, 113);
/* oklch */ color: oklch(96.1% 0.166 114.9);

Tailwind

colors: {
  custom: {
    50: '#f7ff9e',
    500: '#efff71',
    950: '#000000',
  },
}

SCSS

$custom: #efff71;
$custom-light: #f7ff9e;
$custom-dark: #000000;

JSON

{
  "hex": "#efff71",
  "rgb": {
    "r": 239,
    "g": 255,
    "b": 113
  },
  "hsl": {
    "h": 66.761,
    "s": 100,
    "l": 72.157
  },
  "oklch": {
    "l": 0.96099,
    "c": 0.16584,
    "h": 114.9
  },
  "luminance": 0.91063
}

Semantic roles & 50–950 ramp

primary

#EFFF71

secondary

#4B38DC

accent

#00E61A

background

#FFFFFC

surface

#FFFFF5

border

#D7D7CF

text

#17170F

muted

#858580

Preview Lab

Preview with #EFFF71

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

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