#EFF179#EFF179

#EFF179 is a very light, vivid yellow. Relative luminance 0.826; OKLCH L 93.3% C 0.143 H 109.7°. Best body text is #000000 at 17.53:1 contrast (WCAG AA passes).

Color values

HEX	#EFF179
RGB	rgb(239, 241, 121)
HSL	hsl(61, 81%, 71%)
HSV	hsv(61, 50%, 95%)
CMYK	cmyk(0.8%, 0%, 49.8%, 5.5%)
CIE-LAB	lab(92.86, -16.60, 57.08)
CIE-LCH	lch(92.86, 59.44, 106.22°)
OKLab	oklab(93.27% -0.0483 0.1346)
OKLCH	oklch(93.27% 0.143 109.7)
XYZ	xyz(70.5047, 82.6434, 30.3232)
Luminance	0.8264 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF179 #7B79F1

analogous

#F1B779 #EFF179 #B3F179

triadic

#EFF179 #79EFF1 #F179EF

tetradic

#EFF179 #79F1B7 #7B79F1 #F179B3

square

#EFF179 #79F1B7 #7B79F1 #F179B3

split-complementary

#EFF179 #79B3F1 #B779F1

monochromatic

#D6D917 #E8EB42 #EFF179 #F6F7B0 #FCFCE3

Accessibility & contrast

On white

1.20

#EFF179 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.53

#EFF179 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF179

17.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF179	#FFFFFF	#000000	##000000
##EFF179	1.00	1.20	17.53	17.53
#FFFFFF	1.20	1.00	21.00	21.00
#000000	17.53	21.00	1.00	1.00
##000000	17.53	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE86E

Deuteranopia (green-blind)

#FFEC7F

Tritanopia (blue-blind)

#FDE4D6

Achromatopsia (no color)

#EAEAEA

Design tokens & code

CSS

--color: #eff179;
/* rgb */ color: rgb(239, 241, 121);
/* oklch */ color: oklch(93.3% 0.143 109.7);

Tailwind

colors: {
  custom: {
    50: '#f6f5a3',
    500: '#eff179',
    950: '#000000',
  },
}

SCSS

$custom: #eff179;
$custom-light: #f6f5a3;
$custom-dark: #000000;

JSON

{
  "hex": "#eff179",
  "rgb": {
    "r": 239,
    "g": 241,
    "b": 121
  },
  "hsl": {
    "h": 61,
    "s": 81.081,
    "l": 70.98
  },
  "oklch": {
    "l": 0.93266,
    "c": 0.14299,
    "h": 109.7
  },
  "luminance": 0.82642
}

Semantic roles & 50–950 ramp

primary

#EFF179

secondary

#4543CB

accent

#08DD0C

background

#FFFFFC

surface

#FFFEF6

border

#D7D6D0

text

#17170F

muted

#858580

Preview Lab

Preview with #EFF179

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

Preview Lab → · Contrast checker → · Palette generator →