#FFDD31#FFDD31

#FFDD31 is a very light, vivid yellow. Relative luminance 0.732; OKLCH L 90.0% C 0.175 H 96.9°. Best body text is #000000 at 15.64:1 contrast (WCAG AA passes).

Color values

HEX	#FFDD31
RGB	rgb(255, 221, 49)
HSL	hsl(50, 100%, 60%)
HSV	hsv(50, 81%, 100%)
CMYK	cmyk(0%, 13.3%, 80.8%, 0%)
CIE-LAB	lab(88.54, -4.18, 80.59)
CIE-LCH	lch(88.54, 80.70, 92.97°)
OKLab	oklab(89.99% -0.0211 0.1734)
OKLCH	oklch(89.99% 0.175 96.9)
XYZ	xyz(67.6545, 73.1984, 13.4703)
Luminance	0.7319 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#FFDD31 #3153FF

analogous

#FF7631 #FFDD31 #BAFF31

triadic

#FFDD31 #31FFDD #DD31FF

tetradic

#FFDD31 #31FF76 #3153FF #FF31BA

square

#FFDD31 #31FF76 #3153FF #FF31BA

split-complementary

#FFDD31 #31BAFF #7631FF

monochromatic

#B69800 #F3CB00 #FFDD31 #FFE76E #FFF1AB

Accessibility & contrast

On white

1.34

#FFDD31 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

15.64

#FFDD31 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #FFDD31

15.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##FFDD31	#FFFFFF	#000000	##000000
##FFDD31	1.00	1.34	15.64	15.64
#FFFFFF	1.34	1.00	21.00	21.00
#000000	15.64	21.00	1.00	1.00
##000000	15.64	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F4D800

Deuteranopia (green-blind)

#FDE33F

Tritanopia (blue-blind)

#FFCBBE

Achromatopsia (no color)

#DEDEDE

Design tokens & code

CSS

--color: #ffdd31;
/* rgb */ color: rgb(255, 221, 49);
/* oklch */ color: oklch(90.0% 0.175 96.9);

Tailwind

colors: {
  custom: {
    50: '#ffe779',
    500: '#ffdd31',
    950: '#000000',
  },
}

SCSS

$custom: #ffdd31;
$custom-light: #ffe779;
$custom-dark: #000000;

JSON

{
  "hex": "#ffdd31",
  "rgb": {
    "r": 255,
    "g": 221,
    "b": 49
  },
  "hsl": {
    "h": 50.097,
    "s": 100,
    "l": 59.608
  },
  "oklch": {
    "l": 0.89986,
    "c": 0.17471,
    "h": 96.9
  },
  "luminance": 0.73195
}

Semantic roles & 50–950 ramp

primary

#FFDD31

secondary

#2038B4

accent

#4CFF29

background

#FFFEFB

surface

#FFFCF2

border

#D7D5CC

text

#19150A

muted

#87847D

Preview Lab

Preview with #FFDD31

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

Preview Lab → · Contrast checker → · Palette generator →