#F4F03B#F4F03B

#F4F03B is a very light, vivid yellow. Relative luminance 0.819; OKLCH L 92.9% C 0.186 H 108.2°. Best body text is #000000 at 17.37:1 contrast (WCAG AA passes).

Color values

HEX	#F4F03B
RGB	rgb(244, 240, 59)
HSL	hsl(59, 89%, 59%)
HSV	hsv(59, 76%, 96%)
CMYK	cmyk(0%, 1.6%, 75.8%, 4.3%)
CIE-LAB	lab(92.52, -17.81, 80.92)
CIE-LCH	lch(92.52, 82.86, 102.41°)
OKLab	oklab(92.94% -0.058 0.1765)
OKLCH	oklch(92.94% 0.186 108.2)
XYZ	xyz(69.2605, 81.8714, 16.2912)
Luminance	0.8187 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#F4F03B #3B3FF4

analogous

#F4943B #F4F03B #9BF43B

triadic

#F4F03B #3BF4F0 #F03BF4

tetradic

#F4F03B #3BF494 #3B3FF4 #F43B9B

square

#F4F03B #3BF494 #3B3FF4 #F43B9B

split-complementary

#F4F03B #3B9BF4 #943BF4

monochromatic

#ABA80A #E5E00D #F4F03B #F7F475 #FBF9AF

Accessibility & contrast

On white

1.21

#F4F03B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.37

#F4F03B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #F4F03B

17.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##F4F03B	#FFFFFF	#000000	##000000
##F4F03B	1.00	1.21	17.37	17.37
#FFFFFF	1.21	1.00	21.00	21.00
#000000	17.37	21.00	1.00	1.00
##000000	17.37	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE602

Deuteranopia (green-blind)

#FFEC4A

Tritanopia (blue-blind)

#FFE0CE

Achromatopsia (no color)

#E9E9E9

Design tokens & code

CSS

--color: #f4f03b;
/* rgb */ color: rgb(244, 240, 59);
/* oklch */ color: oklch(92.9% 0.186 108.2);

Tailwind

colors: {
  custom: {
    50: '#fcf47f',
    500: '#f4f03b',
    950: '#000000',
  },
}

SCSS

$custom: #f4f03b;
$custom-light: #fcf47f;
$custom-dark: #000000;

JSON

{
  "hex": "#f4f03b",
  "rgb": {
    "r": 244,
    "g": 240,
    "b": 59
  },
  "hsl": {
    "h": 58.703,
    "s": 89.372,
    "l": 59.412
  },
  "oklch": {
    "l": 0.9294,
    "c": 0.18577,
    "h": 108.2
  },
  "luminance": 0.81869
}

Semantic roles & 50–950 ramp

primary

#F4F03B

secondary

#282AAC

accent

#2DFF29

background

#FFFFFB

surface

#FFFEF2

border

#D7D6CC

text

#18170B

muted

#86857E

Preview Lab

Preview with #F4F03B

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

Preview Lab → · Contrast checker → · Palette generator →