#F5F378#F5F378

#F5F378 is a very light, vivid yellow. Relative luminance 0.849; OKLCH L 94.1% C 0.145 H 108.0°. Best body text is #000000 at 17.97:1 contrast (WCAG AA passes).

Color values

HEX	#F5F378
RGB	rgb(245, 243, 120)
HSL	hsl(59, 86%, 72%)
HSV	hsv(59, 51%, 96%)
CMYK	cmyk(0%, 0.8%, 51%, 3.9%)
CIE-LAB	lab(93.83, -15.30, 58.79)
CIE-LCH	lch(93.83, 60.75, 104.58°)
OKLab	oklab(94.15% -0.045 0.1381)
OKLCH	oklch(94.15% 0.145 108)
XYZ	xyz(73.0988, 84.8716, 30.2969)
Luminance	0.8487 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#F5F378 #787AF5

analogous

#F5B578 #F5F378 #B9F578

triadic

#F5F378 #78F5F3 #F378F5

tetradic

#F5F378 #78F5B5 #787AF5 #F578B9

square

#F5F378 #78F5B5 #787AF5 #F578B9

split-complementary

#F5F378 #78B9F5 #B578F5

monochromatic

#E2DF11 #F1EE3F #F5F378 #F9F8B1 #FDFCE3

Accessibility & contrast

On white

1.17

#F5F378 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.97

#F5F378 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #F5F378

17.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##F5F378	#FFFFFF	#000000	##000000
##F5F378	1.00	1.17	17.97	17.97
#FFFFFF	1.17	1.00	21.00	21.00
#000000	17.97	21.00	1.00	1.00
##000000	17.97	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEB6C

Deuteranopia (green-blind)

#FFF07E

Tritanopia (blue-blind)

#FFE6D7

Achromatopsia (no color)

#EDEDED

Design tokens & code

CSS

--color: #f5f378;
/* rgb */ color: rgb(245, 243, 120);
/* oklch */ color: oklch(94.1% 0.145 108.0);

Tailwind

colors: {
  custom: {
    50: '#fbf6a2',
    500: '#f5f378',
    950: '#000000',
  },
}

SCSS

$custom: #f5f378;
$custom-light: #fbf6a2;
$custom-dark: #000000;

JSON

{
  "hex": "#f5f378",
  "rgb": {
    "r": 245,
    "g": 243,
    "b": 120
  },
  "hsl": {
    "h": 59.04,
    "s": 86.207,
    "l": 71.569
  },
  "oklch": {
    "l": 0.94148,
    "c": 0.14527,
    "h": 108
  },
  "luminance": 0.8487
}

Semantic roles & 50–950 ramp

primary

#F5F378

secondary

#4143D0

accent

#06E303

background

#FFFFFC

surface

#FFFEF6

border

#D7D6D0

text

#18170F

muted

#868580

Preview Lab

Preview with #F5F378

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

Preview Lab → · Contrast checker → · Palette generator →