#F3EF4E#F3EF4E

#F3EF4E is a very light, vivid yellow. Relative luminance 0.813; OKLCH L 92.8% C 0.174 H 108.0°. Best body text is #000000 at 17.27:1 contrast (WCAG AA passes).

Color values

HEX	#F3EF4E
RGB	rgb(243, 239, 78)
HSL	hsl(59, 87%, 63%)
HSV	hsv(59, 68%, 95%)
CMYK	cmyk(0%, 1.6%, 67.9%, 4.7%)
CIE-LAB	lab(92.28, -16.92, 74.42)
CIE-LCH	lch(92.28, 76.32, 102.81°)
OKLab	oklab(92.77% -0.0538 0.166)
OKLCH	oklch(92.77% 0.174 108)
XYZ	xyz(69.2063, 81.3400, 19.2609)
Luminance	0.8134 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#F3EF4E #4E52F3

analogous

#F39C4E #F3EF4E #A5F34E

triadic

#F3EF4E #4EF3EF #EF4EF3

tetradic

#F3EF4E #4EF39C #4E52F3 #F34EA5

square

#F3EF4E #4EF39C #4E52F3 #F34EA5

split-complementary

#F3EF4E #4EA5F3 #9C4EF3

monochromatic

#BAB60D #EFEA15 #F3EF4E #F7F487 #FBF9C1

Accessibility & contrast

On white

1.22

#F3EF4E on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.27

#F3EF4E on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #F3EF4E

17.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##F3EF4E	#FFFFFF	#000000	##000000
##F3EF4E	1.00	1.22	17.27	17.27
#FFFFFF	1.22	1.00	21.00	21.00
#000000	17.27	21.00	1.00	1.00
##000000	17.27	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE635

Deuteranopia (green-blind)

#FFEC59

Tritanopia (blue-blind)

#FFE0CF

Achromatopsia (no color)

#E9E9E9

Design tokens & code

CSS

--color: #f3ef4e;
/* rgb */ color: rgb(243, 239, 78);
/* oklch */ color: oklch(92.8% 0.174 108.0);

Tailwind

colors: {
  custom: {
    50: '#fbf489',
    500: '#f3ef4e',
    950: '#000000',
  },
}

SCSS

$custom: #f3ef4e;
$custom-light: #fbf489;
$custom-dark: #000000;

JSON

{
  "hex": "#f3ef4e",
  "rgb": {
    "r": 243,
    "g": 239,
    "b": 78
  },
  "hsl": {
    "h": 58.545,
    "s": 87.302,
    "l": 62.941
  },
  "oklch": {
    "l": 0.92766,
    "c": 0.17448,
    "h": 108
  },
  "luminance": 0.81338
}

Semantic roles & 50–950 ramp

primary

#F3EF4E

secondary

#2D30B9

accent

#07E402

background

#FFFFFC

surface

#FFFEF4

border

#D7D6CE

text

#18170C

muted

#86857F

Preview Lab

Preview with #F3EF4E

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

Preview Lab → · Contrast checker → · Palette generator →