#FFDF40#FFDF40

#FFDF40 is a very light, vivid yellow. Relative luminance 0.744; OKLCH L 90.5% C 0.169 H 97.2°. Best body text is #000000 at 15.88:1 contrast (WCAG AA passes).

Color values

HEX	#FFDF40
RGB	rgb(255, 223, 64)
HSL	hsl(50, 100%, 63%)
HSV	hsv(50, 75%, 100%)
CMYK	cmyk(0%, 12.5%, 74.9%, 0%)
CIE-LAB	lab(89.12, -4.68, 76.58)
CIE-LCH	lch(89.12, 76.72, 93.49°)
OKLab	oklab(90.46% -0.0212 0.1677)
OKLCH	oklch(90.46% 0.169 97.2)
XYZ	xyz(68.5566, 74.4092, 15.6008)
Luminance	0.7441 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#FFDF40 #4060FF

analogous

#FF8040 #FFDF40 #BFFF40

triadic

#FFDF40 #40FFDF #DF40FF

tetradic

#FFDF40 #40FF80 #4060FF #FF40BF

square

#FFDF40 #40FF80 #4060FF #FF40BF

split-complementary

#FFDF40 #40BFFF #8040FF

monochromatic

#C5A400 #FFD503 #FFDF40 #FFE97D #FFF4BA

Accessibility & contrast

On white

1.32

#FFDF40 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

15.88

#FFDF40 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #FFDF40

15.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##FFDF40	#FFFFFF	#000000	##000000
##FFDF40	1.00	1.32	15.88	15.88
#FFFFFF	1.32	1.00	21.00	21.00
#000000	15.88	21.00	1.00	1.00
##000000	15.88	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F6DA20

Deuteranopia (green-blind)

#FEE44B

Tritanopia (blue-blind)

#FFCEC1

Achromatopsia (no color)

#E0E0E0

Design tokens & code

CSS

--color: #ffdf40;
/* rgb */ color: rgb(255, 223, 64);
/* oklch */ color: oklch(90.5% 0.169 97.2);

Tailwind

colors: {
  custom: {
    50: '#ffe880',
    500: '#ffdf40',
    950: '#000000',
  },
}

SCSS

$custom: #ffdf40;
$custom-light: #ffe880;
$custom-dark: #000000;

JSON

{
  "hex": "#ffdf40",
  "rgb": {
    "r": 255,
    "g": 223,
    "b": 64
  },
  "hsl": {
    "h": 49.948,
    "s": 100,
    "l": 62.549
  },
  "oklch": {
    "l": 0.90463,
    "c": 0.169,
    "h": 97.2
  },
  "luminance": 0.74406
}

Semantic roles & 50–950 ramp

primary

#FFDF40

secondary

#223DC1

accent

#26E600

background

#FFFEFB

surface

#FFFCF2

border

#D7D5CC

text

#19160B

muted

#87847E

Preview Lab

Preview with #FFDF40

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

Preview Lab → · Contrast checker → · Palette generator →