#F3EF66#F3EF66

#F3EF66 is a very light, vivid yellow. Relative luminance 0.817; OKLCH L 93.0% C 0.157 H 107.5°. Best body text is #000000 at 17.35:1 contrast (WCAG AA passes).

Color values

HEX	#F3EF66
RGB	rgb(243, 239, 102)
HSL	hsl(58, 85%, 68%)
HSV	hsv(58, 58%, 95%)
CMYK	cmyk(0%, 1.6%, 58%, 4.7%)
CIE-LAB	lab(92.46, -15.49, 65.12)
CIE-LCH	lch(92.46, 66.93, 103.38°)
OKLab	oklab(92.97% -0.0473 0.1498)
OKLCH	oklch(92.97% 0.157 107.5)
XYZ	xyz(70.2291, 81.7491, 24.6475)
Luminance	0.8175 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#F3EF66 #666AF3

analogous

#F3A966 #F3EF66 #B0F366

triadic

#F3EF66 #66F3EF #EF66F3

tetradic

#F3EF66 #66F3A9 #666AF3 #F366B0

square

#F3EF66 #66F3A9 #666AF3 #F366B0

split-complementary

#F3EF66 #66B0F3 #A966F3

monochromatic

#CEC910 #EFE92D #F3EF66 #F7F59F #FCFBD7

Accessibility & contrast

On white

1.21

#F3EF66 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.35

#F3EF66 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #F3EF66

17.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##F3EF66	#FFFFFF	#000000	##000000
##F3EF66	1.00	1.21	17.35	17.35
#FFFFFF	1.21	1.00	21.00	21.00
#000000	17.35	21.00	1.00	1.00
##000000	17.35	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE657

Deuteranopia (green-blind)

#FFEC6E

Tritanopia (blue-blind)

#FFE1D2

Achromatopsia (no color)

#E9E9E9

Design tokens & code

CSS

--color: #f3ef66;
/* rgb */ color: rgb(243, 239, 102);
/* oklch */ color: oklch(93.0% 0.157 107.5);

Tailwind

colors: {
  custom: {
    50: '#faf496',
    500: '#f3ef66',
    950: '#000000',
  },
}

SCSS

$custom: #f3ef66;
$custom-light: #faf496;
$custom-dark: #000000;

JSON

{
  "hex": "#f3ef66",
  "rgb": {
    "r": 243,
    "g": 239,
    "b": 102
  },
  "hsl": {
    "h": 58.298,
    "s": 85.455,
    "l": 67.647
  },
  "oklch": {
    "l": 0.92968,
    "c": 0.15707,
    "h": 107.5
  },
  "luminance": 0.81747
}

Semantic roles & 50–950 ramp

primary

#F3EF66

secondary

#3337CA

accent

#0AE204

background

#FFFFFC

surface

#FFFEF5

border

#D7D6CF

text

#18170E

muted

#86857F

Preview Lab

Preview with #F3EF66

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

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