#F3F577#F3F577

#F3F577 is a very light, vivid yellow. Relative luminance 0.857; OKLCH L 94.4% C 0.149 H 109.8°. Best body text is #000000 at 18.14:1 contrast (WCAG AA passes).

Color values

HEX	#F3F577
RGB	rgb(243, 245, 119)
HSL	hsl(61, 86%, 71%)
HSV	hsv(61, 51%, 96%)
CMYK	cmyk(0.8%, 0%, 51.4%, 3.9%)
CIE-LAB	lab(94.18, -17.14, 59.61)
CIE-LCH	lch(94.18, 62.03, 106.04°)
OKLab	oklab(94.39% -0.0502 0.1398)
OKLCH	oklch(94.39% 0.149 109.8)
XYZ	xyz(72.9460, 85.6931, 30.1470)
Luminance	0.8569 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#F3F577 #7977F5

analogous

#F5B877 #F3F577 #B4F577

triadic

#F3F577 #77F3F5 #F577F3

tetradic

#F3F577 #77F5B8 #7977F5 #F577B4

square

#F3F577 #77F5B8 #7977F5 #F577B4

split-complementary

#F3F577 #77B4F5 #B877F5

monochromatic

#DEE111 #EEF13E #F3F577 #F8F9B0 #FCFDE2

Accessibility & contrast

On white

1.16

#F3F577 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.14

#F3F577 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #F3F577

18.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##F3F577	#FFFFFF	#000000	##000000
##F3F577	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)

#FFEC6B

Deuteranopia (green-blind)

#FFF07E

Tritanopia (blue-blind)

#FFE8D9

Achromatopsia (no color)

#EEEEEE

Design tokens & code

CSS

--color: #f3f577;
/* rgb */ color: rgb(243, 245, 119);
/* oklch */ color: oklch(94.4% 0.149 109.8);

Tailwind

colors: {
  custom: {
    50: '#f9f8a1',
    500: '#f3f577',
    950: '#000000',
  },
}

SCSS

$custom: #f3f577;
$custom-light: #f9f8a1;
$custom-dark: #000000;

JSON

{
  "hex": "#f3f577",
  "rgb": {
    "r": 243,
    "g": 245,
    "b": 119
  },
  "hsl": {
    "h": 60.952,
    "s": 86.301,
    "l": 71.373
  },
  "oklch": {
    "l": 0.94389,
    "c": 0.14859,
    "h": 109.8
  },
  "luminance": 0.85691
}

Semantic roles & 50–950 ramp

primary

#F3F577

secondary

#4340D0

accent

#03E306

background

#FFFFFC

surface

#FFFEF6

border

#D7D6D0

text

#18170F

muted

#868580

Preview Lab

Preview with #F3F577

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

Preview Lab → · Contrast checker → · Palette generator →