#FFF340#FFF340

#FFF340 is a very light, vivid yellow. Relative luminance 0.857; OKLCH L 94.5% C 0.184 H 105.4°. Best body text is #000000 at 18.15:1 contrast (WCAG AA passes).

Color values

HEX	#FFF340
RGB	rgb(255, 243, 64)
HSL	hsl(56, 100%, 63%)
HSV	hsv(56, 75%, 100%)
CMYK	cmyk(0%, 4.7%, 74.9%, 0%)
CIE-LAB	lab(94.20, -14.56, 81.28)
CIE-LCH	lch(94.20, 82.58, 100.16°)
OKLab	oklab(94.5% -0.0491 0.1777)
OKLCH	oklch(94.5% 0.184 105.4)
XYZ	xyz(74.2192, 85.7342, 17.4884)
Luminance	0.8573 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#FFF340 #404CFF

analogous

#FF9340 #FFF340 #ACFF40

triadic

#FFF340 #40FFF3 #F340FF

tetradic

#FFF340 #40FF93 #404CFF #FF40AC

square

#FFF340 #40FF93 #404CFF #FF40AC

split-complementary

#FFF340 #40ACFF #9340FF

monochromatic

#C5B800 #FFEF03 #FFF340 #FFF77D #FFFBBA

Accessibility & contrast

On white

1.16

#FFF340 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.15

#FFF340 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #FFF340

18.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##FFF340	#FFFFFF	#000000	##000000
##FFF340	1.00	1.16	18.15	18.15
#FFFFFF	1.16	1.00	21.00	21.00
#000000	18.15	21.00	1.00	1.00
##000000	18.15	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEA14

Deuteranopia (green-blind)

#FFF24E

Tritanopia (blue-blind)

#FFE2D1

Achromatopsia (no color)

#EEEEEE

Design tokens & code

CSS

--color: #fff340;
/* rgb */ color: rgb(255, 243, 64);
/* oklch */ color: oklch(94.5% 0.184 105.4);

Tailwind

colors: {
  custom: {
    50: '#fff682',
    500: '#fff340',
    950: '#000000',
  },
}

SCSS

$custom: #fff340;
$custom-light: #fff682;
$custom-dark: #000000;

JSON

{
  "hex": "#fff340",
  "rgb": {
    "r": 255,
    "g": 243,
    "b": 64
  },
  "hsl": {
    "h": 56.23,
    "s": 100,
    "l": 62.549
  },
  "oklch": {
    "l": 0.945,
    "c": 0.18434,
    "h": 105.4
  },
  "luminance": 0.85731
}

Semantic roles & 50–950 ramp

primary

#FFF340

secondary

#222CC1

accent

#0EE600

background

#FFFFFC

surface

#FFFEF3

border

#D7D6CD

text

#19170C

muted

#87857F

Preview Lab

Preview with #FFF340

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

Preview Lab → · Contrast checker → · Palette generator →