#EFFD71#EFFD71

#EFFD71 is a very light, vivid yellow. Relative luminance 0.898; OKLCH L 95.7% C 0.164 H 114.3°. Best body text is #000000 at 18.96:1 contrast (WCAG AA passes).

Color values

HEX	#EFFD71
RGB	rgb(239, 253, 113)
HSL	hsl(66, 97%, 72%)
HSV	hsv(66, 55%, 99%)
CMYK	cmyk(5.5%, 0%, 55.3%, 0.8%)
CIE-LAB	lab(95.91, -23.02, 64.17)
CIE-LCH	lch(95.91, 68.17, 109.73°)
OKLab	oklab(95.68% -0.0673 0.1491)
OKLCH	oklch(95.68% 0.164 114.3)
XYZ	xyz(73.7040, 89.7947, 29.0690)
Luminance	0.8979 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFFD71 #7F71FD

analogous

#FDC571 #EFFD71 #A9FD71

triadic

#EFFD71 #71EFFD #FD71EF

tetradic

#EFFD71 #71FDC5 #7F71FD #FD71A9

square

#EFFD71 #71FDC5 #7F71FD #FD71A9

split-complementary

#EFFD71 #71A9FD #C571FD

monochromatic

#D9F003 #E8FC35 #EFFD71 #F6FEAD #FCFFE1

Accessibility & contrast

On white

1.11

#EFFD71 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.96

#EFFD71 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFFD71

18.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFFD71	#FFFFFF	#000000	##000000
##EFFD71	1.00	1.11	18.96	18.96
#FFFFFF	1.11	1.00	21.00	21.00
#000000	18.96	21.00	1.00	1.00
##000000	18.96	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF262

Deuteranopia (green-blind)

#FFF579

Tritanopia (blue-blind)

#FDF0DE

Achromatopsia (no color)

#F3F3F3

Design tokens & code

CSS

--color: #effd71;
/* rgb */ color: rgb(239, 253, 113);
/* oklch */ color: oklch(95.7% 0.164 114.3);

Tailwind

colors: {
  custom: {
    50: '#f7fe9e',
    500: '#effd71',
    950: '#000000',
  },
}

SCSS

$custom: #effd71;
$custom-light: #f7fe9e;
$custom-dark: #000000;

JSON

{
  "hex": "#effd71",
  "rgb": {
    "r": 239,
    "g": 253,
    "b": 113
  },
  "hsl": {
    "h": 66,
    "s": 97.222,
    "l": 71.765
  },
  "oklch": {
    "l": 0.95679,
    "c": 0.16357,
    "h": 114.3
  },
  "luminance": 0.89794
}

Semantic roles & 50–950 ramp

primary

#EFFD71

secondary

#4939D9

accent

#00E617

background

#FFFFFC

surface

#FFFFF5

border

#D7D7CF

text

#17170F

muted

#858580

Preview Lab

Preview with #EFFD71

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

Preview Lab → · Contrast checker → · Palette generator →