#F3EF45#F3EF45

#F3EF45 is a very light, vivid yellow. Relative luminance 0.812; OKLCH L 92.7% C 0.180 H 108.1°. Best body text is #000000 at 17.24:1 contrast (WCAG AA passes).

Color values

HEX	#F3EF45
RGB	rgb(243, 239, 69)
HSL	hsl(59, 88%, 61%)
HSV	hsv(59, 72%, 95%)
CMYK	cmyk(0%, 1.6%, 71.6%, 4.7%)
CIE-LAB	lab(92.23, -17.34, 77.50)
CIE-LCH	lch(92.23, 79.41, 102.61°)
OKLab	oklab(92.71% -0.0558 0.171)
OKLCH	oklch(92.71% 0.18 108.1)
XYZ	xyz(68.9054, 81.2196, 17.6764)
Luminance	0.8122 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#F3EF45 #4549F3

analogous

#F39845 #F3EF45 #A0F345

triadic

#F3EF45 #45F3EF #EF45F3

tetradic

#F3EF45 #45F398 #4549F3 #F345A0

square

#F3EF45 #45F398 #4549F3 #F345A0

split-complementary

#F3EF45 #45A0F3 #9845F3

monochromatic

#B2AE0B #ECE70F #F3EF45 #F7F47E #FAF9B8

Accessibility & contrast

On white

1.22

#F3EF45 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.24

#F3EF45 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #F3EF45

17.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##F3EF45	#FFFFFF	#000000	##000000
##F3EF45	1.00	1.22	17.24	17.24
#FFFFFF	1.22	1.00	21.00	21.00
#000000	17.24	21.00	1.00	1.00
##000000	17.24	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE524

Deuteranopia (green-blind)

#FFEB52

Tritanopia (blue-blind)

#FFE0CE

Achromatopsia (no color)

#E9E9E9

Design tokens & code

CSS

--color: #f3ef45;
/* rgb */ color: rgb(243, 239, 69);
/* oklch */ color: oklch(92.7% 0.180 108.1);

Tailwind

colors: {
  custom: {
    50: '#fbf384',
    500: '#f3ef45',
    950: '#000000',
  },
}

SCSS

$custom: #f3ef45;
$custom-light: #fbf384;
$custom-dark: #000000;

JSON

{
  "hex": "#f3ef45",
  "rgb": {
    "r": 243,
    "g": 239,
    "b": 69
  },
  "hsl": {
    "h": 58.621,
    "s": 87.879,
    "l": 61.176
  },
  "oklch": {
    "l": 0.92706,
    "c": 0.17985,
    "h": 108.1
  },
  "luminance": 0.81217
}

Semantic roles & 50–950 ramp

primary

#F3EF45

secondary

#2A2DB2

accent

#06E401

background

#FFFFFC

surface

#FFFEF3

border

#D7D6CD

text

#18170C

muted

#86857F

Preview Lab

Preview with #F3EF45

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

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