#F3F578#F3F578

#F3F578 is a very light, vivid yellow. Relative luminance 0.857; OKLCH L 94.4% C 0.148 H 109.8°. Best body text is #000000 at 18.14:1 contrast (WCAG AA passes).

Color values

HEX	#F3F578
RGB	rgb(243, 245, 120)
HSL	hsl(61, 86%, 72%)
HSV	hsv(61, 51%, 96%)
CMYK	cmyk(0.8%, 0%, 51%, 3.9%)
CIE-LAB	lab(94.19, -17.06, 59.17)
CIE-LCH	lch(94.19, 61.58, 106.08°)
OKLab	oklab(94.4% -0.0499 0.139)
OKLCH	oklch(94.4% 0.148 109.8)
XYZ	xyz(73.0064, 85.7173, 30.4649)
Luminance	0.8572 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#F3F578 #7A78F5

analogous

#F5B978 #F3F578 #B5F578

triadic

#F3F578 #78F3F5 #F578F3

tetradic

#F3F578 #78F5B9 #7A78F5 #F578B5

square

#F3F578 #78F5B9 #7A78F5 #F578B5

split-complementary

#F3F578 #78B5F5 #B978F5

monochromatic

#DFE211 #EEF13F #F3F578 #F8F9B1 #FCFDE3

Accessibility & contrast

On white

1.16

#F3F578 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.14

#F3F578 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #F3F578

18.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##F3F578	#FFFFFF	#000000	##000000
##F3F578	1.00	1.16	18.14	18.14
#FFFFFF	1.16	1.00	21.00	21.00
#000000	18.14	21.00	1.00	1.00
##000000	18.14	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEC6C

Deuteranopia (green-blind)

#FFF07F

Tritanopia (blue-blind)

#FFE8D9

Achromatopsia (no color)

#EEEEEE

Design tokens & code

CSS

--color: #f3f578;
/* rgb */ color: rgb(243, 245, 120);
/* oklch */ color: oklch(94.4% 0.148 109.8);

Tailwind

colors: {
  custom: {
    50: '#f9f8a2',
    500: '#f3f578',
    950: '#000000',
  },
}

SCSS

$custom: #f3f578;
$custom-light: #f9f8a2;
$custom-dark: #000000;

JSON

{
  "hex": "#f3f578",
  "rgb": {
    "r": 243,
    "g": 245,
    "b": 120
  },
  "hsl": {
    "h": 60.96,
    "s": 86.207,
    "l": 71.569
  },
  "oklch": {
    "l": 0.944,
    "c": 0.14768,
    "h": 109.8
  },
  "luminance": 0.85716
}

Semantic roles & 50–950 ramp

primary

#F3F578

secondary

#4341D0

accent

#03E306

background

#FFFFFC

surface

#FFFEF6

border

#D7D6D0

text

#18170F

muted

#868580

Preview Lab

Preview with #F3F578

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

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