#FDDF37#FDDF37

#FDDF37 is a very light, vivid yellow. Relative luminance 0.739; OKLCH L 90.2% C 0.173 H 98.4°. Best body text is #000000 at 15.79:1 contrast (WCAG AA passes).

Color values

HEX	#FDDF37
RGB	rgb(253, 223, 55)
HSL	hsl(51, 98%, 60%)
HSV	hsv(51, 78%, 99%)
CMYK	cmyk(0%, 11.9%, 78.3%, 0.8%)
CIE-LAB	lab(88.89, -5.84, 79.13)
CIE-LCH	lch(88.89, 79.34, 94.22°)
OKLab	oklab(90.23% -0.0252 0.1715)
OKLCH	oklch(90.23% 0.173 98.4)
XYZ	xyz(67.5888, 73.9374, 14.3250)
Luminance	0.7393 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#FDDF37 #3755FD

analogous

#FD7C37 #FDDF37 #B8FD37

triadic

#FDDF37 #37FDDF #DF37FD

tetradic

#FDDF37 #37FD7C #3755FD #FD37B8

square

#FDDF37 #37FD7C #3755FD #FD37B8

split-complementary

#FDDF37 #37B8FD #7C37FD

monochromatic

#B89C02 #F4D002 #FDDF37 #FEE974 #FEF2B0

Accessibility & contrast

On white

1.33

#FDDF37 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

15.79

#FDDF37 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #FDDF37

15.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##FDDF37	#FFFFFF	#000000	##000000
##FDDF37	1.00	1.33	15.79	15.79
#FFFFFF	1.33	1.00	21.00	21.00
#000000	15.79	21.00	1.00	1.00
##000000	15.79	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F6D903

Deuteranopia (green-blind)

#FEE444

Tritanopia (blue-blind)

#FFCEC0

Achromatopsia (no color)

#DFDFDF

Design tokens & code

CSS

--color: #fddf37;
/* rgb */ color: rgb(253, 223, 55);
/* oklch */ color: oklch(90.2% 0.173 98.4);

Tailwind

colors: {
  custom: {
    50: '#ffe87c',
    500: '#fddf37',
    950: '#000000',
  },
}

SCSS

$custom: #fddf37;
$custom-light: #ffe87c;
$custom-dark: #000000;

JSON

{
  "hex": "#fddf37",
  "rgb": {
    "r": 253,
    "g": 223,
    "b": 55
  },
  "hsl": {
    "h": 50.909,
    "s": 98.02,
    "l": 60.392
  },
  "oklch": {
    "l": 0.9023,
    "c": 0.17335,
    "h": 98.4
  },
  "luminance": 0.73934
}

Semantic roles & 50–950 ramp

primary

#FDDF37

secondary

#2238B6

accent

#23E600

background

#FFFEFB

surface

#FFFCF2

border

#D7D5CC

text

#19160A

muted

#87847D

Preview Lab

Preview with #FDDF37

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

Preview Lab → · Contrast checker → · Palette generator →