#EFF879#EFF879

#EFF879 is a very light, vivid yellow. Relative luminance 0.869; OKLCH L 94.7% C 0.151 H 112.6°. Best body text is #000000 at 18.37:1 contrast (WCAG AA passes).

Color values

HEX	#EFF879
RGB	rgb(239, 248, 121)
HSL	hsl(64, 90%, 72%)
HSV	hsv(64, 51%, 97%)
CMYK	cmyk(3.6%, 0%, 51.2%, 2.7%)
CIE-LAB	lab(94.68, -19.99, 59.22)
CIE-LCH	lch(94.68, 62.50, 108.65°)
OKLab	oklab(94.72% -0.0579 0.1392)
OKLCH	oklch(94.72% 0.151 112.6)
XYZ	xyz(72.6166, 86.8673, 31.0272)
Luminance	0.8687 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF879 #8279F8

analogous

#F8C279 #EFF879 #B0F879

triadic

#EFF879 #79EFF8 #F879EF

tetradic

#EFF879 #79F8C2 #8279F8 #F879B0

square

#EFF879 #79F8C2 #8279F8 #F879B0

split-complementary

#EFF879 #79B0F8 #C279F8

monochromatic

#DBEA0C #E8F53F #EFF879 #F6FBB3 #FCFDE2

Accessibility & contrast

On white

1.14

#EFF879 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.37

#EFF879 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF879

18.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF879	#FFFFFF	#000000	##000000
##EFF879	1.00	1.14	18.37	18.37
#FFFFFF	1.14	1.00	21.00	21.00
#000000	18.37	21.00	1.00	1.00
##000000	18.37	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEE6D

Deuteranopia (green-blind)

#FFF180

Tritanopia (blue-blind)

#FCEBDB

Achromatopsia (no color)

#F0F0F0

Design tokens & code

CSS

--color: #eff879;
/* rgb */ color: rgb(239, 248, 121);
/* oklch */ color: oklch(94.7% 0.151 112.6);

Tailwind

colors: {
  custom: {
    50: '#f6faa3',
    500: '#eff879',
    950: '#000000',
  },
}

SCSS

$custom: #eff879;
$custom-light: #f6faa3;
$custom-dark: #000000;

JSON

{
  "hex": "#eff879",
  "rgb": {
    "r": 239,
    "g": 248,
    "b": 121
  },
  "hsl": {
    "h": 64.252,
    "s": 90.071,
    "l": 72.353
  },
  "oklch": {
    "l": 0.94722,
    "c": 0.15081,
    "h": 112.6
  },
  "luminance": 0.86866
}

Semantic roles & 50–950 ramp

primary

#EFF879

secondary

#4C41D4

accent

#00E610

background

#FFFFFC

surface

#FFFFF6

border

#D7D7D0

text

#17170F

muted

#858580

Preview Lab

Preview with #EFF879

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

Preview Lab → · Contrast checker → · Palette generator →