#EFF979#EFF979

#EFF979 is a very light, vivid yellow. Relative luminance 0.875; OKLCH L 94.9% C 0.152 H 113.0°. Best body text is #000000 at 18.50:1 contrast (WCAG AA passes).

Color values

HEX	#EFF979
RGB	rgb(239, 249, 121)
HSL	hsl(65, 91%, 73%)
HSV	hsv(65, 51%, 98%)
CMYK	cmyk(4%, 0%, 51.4%, 2.4%)
CIE-LAB	lab(94.94, -20.47, 59.53)
CIE-LCH	lch(94.94, 62.95, 108.97°)
OKLab	oklab(94.93% -0.0593 0.1399)
OKLCH	oklch(94.93% 0.152 113)
XYZ	xyz(72.9249, 87.4838, 31.1299)
Luminance	0.8748 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF979 #8379F9

analogous

#F9C379 #EFF979 #AFF979

triadic

#EFF979 #79EFF9 #F979EF

tetradic

#EFF979 #79F9C3 #8379F9 #F979AF

square

#EFF979 #79F9C3 #8379F9 #F979AF

split-complementary

#EFF979 #79AFF9 #C379F9

monochromatic

#DBED0B #E8F63E #EFF979 #F6FCB4 #FCFEE2

Accessibility & contrast

On white

1.14

#EFF979 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.50

#EFF979 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF979

18.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF979	#FFFFFF	#000000	##000000
##EFF979	1.00	1.14	18.50	18.50
#FFFFFF	1.14	1.00	21.00	21.00
#000000	18.50	21.00	1.00	1.00
##000000	18.50	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEF6D

Deuteranopia (green-blind)

#FFF280

Tritanopia (blue-blind)

#FCECDC

Achromatopsia (no color)

#F0F0F0

Design tokens & code

CSS

--color: #eff979;
/* rgb */ color: rgb(239, 249, 121);
/* oklch */ color: oklch(94.9% 0.152 113.0);

Tailwind

colors: {
  custom: {
    50: '#f6fba3',
    500: '#eff979',
    950: '#000000',
  },
}

SCSS

$custom: #eff979;
$custom-light: #f6fba3;
$custom-dark: #000000;

JSON

{
  "hex": "#eff979",
  "rgb": {
    "r": 239,
    "g": 249,
    "b": 121
  },
  "hsl": {
    "h": 64.688,
    "s": 91.429,
    "l": 72.549
  },
  "oklch": {
    "l": 0.9493,
    "c": 0.15194,
    "h": 113
  },
  "luminance": 0.87483
}

Semantic roles & 50–950 ramp

primary

#EFF979

secondary

#4D41D5

accent

#00E612

background

#FFFFFC

surface

#FFFFF6

border

#D7D7D0

text

#17170F

muted

#858580

Preview Lab

Preview with #EFF979

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

Preview Lab → · Contrast checker → · Palette generator →