#F3F57B#F3F57B

#F3F57B is a very light, vivid yellow. Relative luminance 0.858; OKLCH L 94.4% C 0.145 H 109.7°. Best body text is #000000 at 18.16:1 contrast (WCAG AA passes).

Color values

HEX#F3F57B
RGBrgb(243, 245, 123)
HSLhsl(61, 86%, 72%)
HSVhsv(61, 50%, 96%)
CMYKcmyk(0.8%, 0%, 49.8%, 3.9%)
CIE-LABlab(94.22, -16.81, 57.85)
CIE-LCHlch(94.22, 60.24, 106.20°)
OKLaboklab(94.44% -0.0489 0.1364)
OKLCHoklch(94.44% 0.145 109.7)
XYZxyz(73.1913, 85.7912, 31.4389)
Luminance0.8579 (WCAG relative)
Temperaturewarm
Familyyellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#F3F57B #7D7BF5
analogous
#F5BA7B #F3F57B #B6F57B
triadic
#F3F57B #7BF3F5 #F57BF3
tetradic
#F3F57B #7BF5BA #7D7BF5 #F57BB6
square
#F3F57B #7BF5BA #7D7BF5 #F57BB6
split-complementary
#F3F57B #7BB6F5 #BA7BF5
monochromatic
#E1E411 #EEF142 #F3F57B #F8F9B4 #FCFDE3

Accessibility & contrast

On white

1.16
#F3F57B on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

18.16
#F3F57B on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #F3F57B
18.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##F3F57B#FFFFFF#000000##000000
##F3F57B1.001.1618.1618.16
#FFFFFF1.161.0021.0021.00
#00000018.1621.001.001.00
##00000018.1621.001.001.00

Color blindness preview

Protanopia (red-blind)
#FFEC70
Deuteranopia (green-blind)
#FFF081
Tritanopia (blue-blind)
#FFE8D9
Achromatopsia (no color)
#EEEEEE

Design tokens & code

CSS
--color: #f3f57b;
/* rgb */ color: rgb(243, 245, 123);
/* oklch */ color: oklch(94.4% 0.145 109.7);
Tailwind
colors: {
  custom: {
    50: '#f9f8a4',
    500: '#f3f57b',
    950: '#000000',
  },
}
SCSS
$custom: #f3f57b;
$custom-light: #f9f8a4;
$custom-dark: #000000;
JSON
{
  "hex": "#f3f57b",
  "rgb": {
    "r": 243,
    "g": 245,
    "b": 123
  },
  "hsl": {
    "h": 60.984,
    "s": 85.915,
    "l": 72.157
  },
  "oklch": {
    "l": 0.94436,
    "c": 0.14489,
    "h": 109.7
  },
  "luminance": 0.8579
}

Semantic roles & 50–950 ramp

primary
#F3F57B
secondary
#4644D0
accent
#03E207
background
#FFFFFC
surface
#FFFEF6
border
#D7D6D0
text
#18170F
muted
#868580

Preview Lab

Preview with #F3F57B

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

Preview Lab → · Contrast checker → · Palette generator →

#F3F57B Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva