#F5EF53#F5EF53

#F5EF53 is a very light, vivid yellow. Relative luminance 0.818; OKLCH L 93.0% C 0.171 H 107.1°. Best body text is #000000 at 17.35:1 contrast (WCAG AA passes).

Color values

HEX	#F5EF53
RGB	rgb(245, 239, 83)
HSL	hsl(58, 89%, 64%)
HSV	hsv(58, 66%, 96%)
CMYK	cmyk(0%, 2.4%, 66.1%, 3.9%)
CIE-LAB	lab(92.47, -15.84, 72.82)
CIE-LCH	lch(92.47, 74.52, 102.27°)
OKLab	oklab(92.97% -0.0504 0.1633)
OKLCH	oklch(92.97% 0.171 107.1)
XYZ	xyz(70.0866, 81.7723, 20.2737)
Luminance	0.8177 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#F5EF53 #5359F5

analogous

#F59E53 #F5EF53 #AAF553

triadic

#F5EF53 #53F5EF #EF53F5

tetradic

#F5EF53 #53F59E #5359F5 #F553AA

square

#F5EF53 #53F59E #5359F5 #F553AA

split-complementary

#F5EF53 #53AAF5 #9E53F5

monochromatic

#C2BC0B #F2EA19 #F5EF53 #F8F48D #FCFAC7

Accessibility & contrast

On white

1.21

#F5EF53 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.35

#F5EF53 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #F5EF53

17.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##F5EF53	#FFFFFF	#000000	##000000
##F5EF53	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)

#FFE63C

Deuteranopia (green-blind)

#FFEC5D

Tritanopia (blue-blind)

#FFE0D0

Achromatopsia (no color)

#E9E9E9

Design tokens & code

CSS

--color: #f5ef53;
/* rgb */ color: rgb(245, 239, 83);
/* oklch */ color: oklch(93.0% 0.171 107.1);

Tailwind

colors: {
  custom: {
    50: '#fcf48b',
    500: '#f5ef53',
    950: '#000000',
  },
}

SCSS

$custom: #f5ef53;
$custom-light: #fcf48b;
$custom-dark: #000000;

JSON

{
  "hex": "#f5ef53",
  "rgb": {
    "r": 245,
    "g": 239,
    "b": 83
  },
  "hsl": {
    "h": 57.778,
    "s": 89.011,
    "l": 64.314
  },
  "oklch": {
    "l": 0.92967,
    "c": 0.17093,
    "h": 107.1
  },
  "luminance": 0.8177
}

Semantic roles & 50–950 ramp

primary

#F5EF53

secondary

#2D32C0

accent

#08E600

background

#FFFFFC

surface

#FFFEF4

border

#D7D6CE

text

#18170D

muted

#86857F

Preview Lab

Preview with #F5EF53

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

Preview Lab → · Contrast checker → · Palette generator →