#EFFD79#EFFD79

#EFFD79 is a very light, vivid yellow. Relative luminance 0.900; OKLCH L 95.8% C 0.157 H 114.4°. Best body text is #000000 at 19.00:1 contrast (WCAG AA passes).

Color values

HEX	#EFFD79
RGB	rgb(239, 253, 121)
HSL	hsl(66, 97%, 73%)
HSV	hsv(66, 52%, 99%)
CMYK	cmyk(5.5%, 0%, 52.2%, 0.8%)
CIE-LAB	lab(95.99, -22.38, 60.74)
CIE-LCH	lch(95.99, 64.74, 110.22°)
OKLab	oklab(95.77% -0.0647 0.1425)
OKLCH	oklch(95.77% 0.157 114.4)
XYZ	xyz(74.1744, 89.9829, 31.5464)
Luminance	0.8998 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFFD79 #8779FD

analogous

#FDC979 #EFFD79 #ADFD79

triadic

#EFFD79 #79EFFD #FD79EF

tetradic

#EFFD79 #79FDC9 #8779FD #FD79AD

square

#EFFD79 #79FDC9 #8779FD #FD79AD

split-complementary

#EFFD79 #79ADFD #C979FD

monochromatic

#DEF804 #E8FC3D #EFFD79 #F6FEB5 #FBFFE1

Accessibility & contrast

On white

1.11

#EFFD79 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

19.00

#EFFD79 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFFD79

19.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFFD79	#FFFFFF	#000000	##000000
##EFFD79	1.00	1.11	19.00	19.00
#FFFFFF	1.11	1.00	21.00	21.00
#000000	19.00	21.00	1.00	1.00
##000000	19.00	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF26C

Deuteranopia (green-blind)

#FFF580

Tritanopia (blue-blind)

#FCF0DF

Achromatopsia (no color)

#F3F3F3

Design tokens & code

CSS

--color: #effd79;
/* rgb */ color: rgb(239, 253, 121);
/* oklch */ color: oklch(95.8% 0.157 114.4);

Tailwind

colors: {
  custom: {
    50: '#f6fea3',
    500: '#effd79',
    950: '#000000',
  },
}

SCSS

$custom: #effd79;
$custom-light: #f6fea3;
$custom-dark: #000000;

JSON

{
  "hex": "#effd79",
  "rgb": {
    "r": 239,
    "g": 253,
    "b": 121
  },
  "hsl": {
    "h": 66.364,
    "s": 97.059,
    "l": 73.333
  },
  "oklch": {
    "l": 0.95767,
    "c": 0.15653,
    "h": 114.4
  },
  "luminance": 0.89982
}

Semantic roles & 50–950 ramp

primary

#EFFD79

secondary

#5040DA

accent

#00E618

background

#FFFFFC

surface

#FFFFF6

border

#D7D7D0

text

#17170F

muted

#858580

Preview Lab

Preview with #EFFD79

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

Preview Lab → · Contrast checker → · Palette generator →