#F3EF61#F3EF61

#F3EF61 is a very light, vivid yellow. Relative luminance 0.817; OKLCH L 92.9% C 0.161 H 107.6°. Best body text is #000000 at 17.33:1 contrast (WCAG AA passes).

Color values

HEX	#F3EF61
RGB	rgb(243, 239, 97)
HSL	hsl(58, 86%, 67%)
HSV	hsv(58, 60%, 95%)
CMYK	cmyk(0%, 1.6%, 60.1%, 4.7%)
CIE-LAB	lab(92.42, -15.82, 67.17)
CIE-LCH	lch(92.42, 69.01, 103.26°)
OKLab	oklab(92.92% -0.0488 0.1535)
OKLCH	oklch(92.92% 0.161 107.6)
XYZ	xyz(69.9886, 81.6529, 23.3808)
Luminance	0.8165 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#F3EF61 #6165F3

analogous

#F3A661 #F3EF61 #AEF361

triadic

#F3EF61 #61F3EF #EF61F3

tetradic

#F3EF61 #61F3A6 #6165F3 #F361AE

square

#F3EF61 #61F3A6 #6165F3 #F361AE

split-complementary

#F3EF61 #61AEF3 #A661F3

monochromatic

#CAC50F #EFE928 #F3EF61 #F7F59A #FCFBD3

Accessibility & contrast

On white

1.21

#F3EF61 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.33

#F3EF61 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #F3EF61

17.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##F3EF61	#FFFFFF	#000000	##000000
##F3EF61	1.00	1.21	17.33	17.33
#FFFFFF	1.21	1.00	21.00	21.00
#000000	17.33	21.00	1.00	1.00
##000000	17.33	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE650

Deuteranopia (green-blind)

#FFEC69

Tritanopia (blue-blind)

#FFE1D1

Achromatopsia (no color)

#E9E9E9

Design tokens & code

CSS

--color: #f3ef61;
/* rgb */ color: rgb(243, 239, 97);
/* oklch */ color: oklch(92.9% 0.161 107.6);

Tailwind

colors: {
  custom: {
    50: '#faf493',
    500: '#f3ef61',
    950: '#000000',
  },
}

SCSS

$custom: #f3ef61;
$custom-light: #faf493;
$custom-dark: #000000;

JSON

{
  "hex": "#f3ef61",
  "rgb": {
    "r": 243,
    "g": 239,
    "b": 97
  },
  "hsl": {
    "h": 58.356,
    "s": 85.882,
    "l": 66.667
  },
  "oklch": {
    "l": 0.92921,
    "c": 0.16105,
    "h": 107.6
  },
  "luminance": 0.81651
}

Semantic roles & 50–950 ramp

primary

#F3EF61

secondary

#3136C7

accent

#09E203

background

#FFFFFC

surface

#FFFEF5

border

#D7D6CF

text

#18170D

muted

#86857F

Preview Lab

Preview with #F3EF61

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

Preview Lab → · Contrast checker → · Palette generator →