#F3EF5A#F3EF5A

#F3EF5A is a very light, vivid yellow. Relative luminance 0.815; OKLCH L 92.9% C 0.166 H 107.8°. Best body text is #000000 at 17.31:1 contrast (WCAG AA passes).

Color values

HEX	#F3EF5A
RGB	rgb(243, 239, 90)
HSL	hsl(58, 86%, 65%)
HSV	hsv(58, 63%, 95%)
CMYK	cmyk(0%, 1.6%, 63%, 4.7%)
CIE-LAB	lab(92.37, -16.26, 69.95)
CIE-LCH	lch(92.37, 71.81, 103.09°)
OKLab	oklab(92.86% -0.0507 0.1584)
OKLCH	oklch(92.86% 0.166 107.8)
XYZ	xyz(69.6765, 81.5280, 21.7371)
Luminance	0.8153 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#F3EF5A #5A5EF3

analogous

#F3A25A #F3EF5A #ABF35A

triadic

#F3EF5A #5AF3EF #EF5AF3

tetradic

#F3EF5A #5AF3A2 #5A5EF3 #F35AAB

square

#F3EF5A #5AF3A2 #5A5EF3 #F35AAB

split-complementary

#F3EF5A #5AABF3 #A25AF3

monochromatic

#C4C00E #EFE921 #F3EF5A #F7F593 #FBFACC

Accessibility & contrast

On white

1.21

#F3EF5A on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.31

#F3EF5A on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #F3EF5A

17.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##F3EF5A	#FFFFFF	#000000	##000000
##F3EF5A	1.00	1.21	17.31	17.31
#FFFFFF	1.21	1.00	21.00	21.00
#000000	17.31	21.00	1.00	1.00
##000000	17.31	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE647

Deuteranopia (green-blind)

#FFEC63

Tritanopia (blue-blind)

#FFE0D0

Achromatopsia (no color)

#E9E9E9

Design tokens & code

CSS

--color: #f3ef5a;
/* rgb */ color: rgb(243, 239, 90);
/* oklch */ color: oklch(92.9% 0.166 107.8);

Tailwind

colors: {
  custom: {
    50: '#faf48f',
    500: '#f3ef5a',
    950: '#000000',
  },
}

SCSS

$custom: #f3ef5a;
$custom-light: #faf48f;
$custom-dark: #000000;

JSON

{
  "hex": "#f3ef5a",
  "rgb": {
    "r": 243,
    "g": 239,
    "b": 90
  },
  "hsl": {
    "h": 58.431,
    "s": 86.441,
    "l": 65.294
  },
  "oklch": {
    "l": 0.92859,
    "c": 0.16633,
    "h": 107.8
  },
  "luminance": 0.81526
}

Semantic roles & 50–950 ramp

primary

#F3EF5A

secondary

#3033C2

accent

#08E303

background

#FFFFFC

surface

#FFFEF4

border

#D7D6CE

text

#18170D

muted

#86857F

Preview Lab

Preview with #F3EF5A

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

Preview Lab → · Contrast checker → · Palette generator →