#EFFC73#EFFC73

#EFFC73 is a very light, vivid yellow. Relative luminance 0.892; OKLCH L 95.5% C 0.161 H 114.0°. Best body text is #000000 at 18.84:1 contrast (WCAG AA passes).

Color values

HEX	#EFFC73
RGB	rgb(239, 252, 115)
HSL	hsl(66, 96%, 72%)
HSV	hsv(66, 54%, 99%)
CMYK	cmyk(5.2%, 0%, 54.4%, 1.2%)
CIE-LAB	lab(95.67, -22.39, 63.02)
CIE-LCH	lch(95.67, 66.88, 109.55°)
OKLab	oklab(95.49% -0.0653 0.1469)
OKLCH	oklch(95.49% 0.161 114)
XYZ	xyz(73.5030, 89.2105, 29.5636)
Luminance	0.8921 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFFC73 #8073FC

analogous

#FCC473 #EFFC73 #ABFC73

triadic

#EFFC73 #73EFFC #FC73EF

tetradic

#EFFC73 #73FCC4 #8073FC #FC73AB

square

#EFFC73 #73FCC4 #8073FC #FC73AB

split-complementary

#EFFC73 #73ABFC #C473FC

monochromatic

#D9EF05 #E8FB37 #EFFC73 #F6FDAF #FCFEE1

Accessibility & contrast

On white

1.11

#EFFC73 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.84

#EFFC73 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFFC73

18.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFFC73	#FFFFFF	#000000	##000000
##EFFC73	1.00	1.11	18.84	18.84
#FFFFFF	1.11	1.00	21.00	21.00
#000000	18.84	21.00	1.00	1.00
##000000	18.84	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF165

Deuteranopia (green-blind)

#FFF47B

Tritanopia (blue-blind)

#FDEFDE

Achromatopsia (no color)

#F3F3F3

Design tokens & code

CSS

--color: #effc73;
/* rgb */ color: rgb(239, 252, 115);
/* oklch */ color: oklch(95.5% 0.161 114.0);

Tailwind

colors: {
  custom: {
    50: '#f7fd9f',
    500: '#effc73',
    950: '#000000',
  },
}

SCSS

$custom: #effc73;
$custom-light: #f7fd9f;
$custom-dark: #000000;

JSON

{
  "hex": "#effc73",
  "rgb": {
    "r": 239,
    "g": 252,
    "b": 115
  },
  "hsl": {
    "h": 65.693,
    "s": 95.804,
    "l": 71.961
  },
  "oklch": {
    "l": 0.9549,
    "c": 0.16072,
    "h": 114
  },
  "luminance": 0.89209
}

Semantic roles & 50–950 ramp

primary

#EFFC73

secondary

#4A3BD8

accent

#00E616

background

#FFFFFC

surface

#FFFFF5

border

#D7D7CF

text

#17170F

muted

#858580

Preview Lab

Preview with #EFFC73

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

Preview Lab → · Contrast checker → · Palette generator →