#DEF23B#DEF23B

#DEF23B is a very light, vivid yellow. Relative luminance 0.793; OKLCH L 91.6% C 0.193 H 115.9°. Best body text is #000000 at 16.87:1 contrast (WCAG AA passes).

Color values

HEX	#DEF23B
RGB	rgb(222, 242, 59)
HSL	hsl(67, 88%, 59%)
HSV	hsv(67, 76%, 95%)
CMYK	cmyk(8.3%, 0%, 75.6%, 5.1%)
CIE-LAB	lab(91.39, -27.72, 79.29)
CIE-LCH	lch(91.39, 83.99, 109.27°)
OKLab	oklab(91.63% -0.0844 0.1738)
OKLCH	oklch(91.63% 0.193 115.9)
XYZ	xyz(62.6675, 79.3506, 16.1518)
Luminance	0.7935 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#DEF23B #4F3BF2

analogous

#F2AA3B #DEF23B #83F23B

triadic

#DEF23B #3BDEF2 #F23BDE

tetradic

#DEF23B #3BF2AA #4F3BF2 #F23B83

square

#DEF23B #3BF2AA #4F3BF2 #F23B83

split-complementary

#DEF23B #3B83F2 #AA3BF2

monochromatic

#96A70B #CAE10F #DEF23B #E8F674 #F1FAAE

Accessibility & contrast

On white

1.24

#DEF23B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

16.87

#DEF23B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #DEF23B

16.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##DEF23B	#FFFFFF	#000000	##000000
##DEF23B	1.00	1.24	16.87	16.87
#FFFFFF	1.24	1.00	21.00	21.00
#000000	16.87	21.00	1.00	1.00
##000000	16.87	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE501

Deuteranopia (green-blind)

#FFE84C

Tritanopia (blue-blind)

#ECE4D0

Achromatopsia (no color)

#E6E6E6

Design tokens & code

CSS

--color: #def23b;
/* rgb */ color: rgb(222, 242, 59);
/* oklch */ color: oklch(91.6% 0.193 115.9);

Tailwind

colors: {
  custom: {
    50: '#ecf67f',
    500: '#def23b',
    950: '#000000',
  },
}

SCSS

$custom: #def23b;
$custom-light: #ecf67f;
$custom-dark: #000000;

JSON

{
  "hex": "#def23b",
  "rgb": {
    "r": 222,
    "g": 242,
    "b": 59
  },
  "hsl": {
    "h": 66.557,
    "s": 87.56,
    "l": 59.02
  },
  "oklch": {
    "l": 0.91632,
    "c": 0.1932,
    "h": 115.9
  },
  "luminance": 0.7935
}

Semantic roles & 50–950 ramp

primary

#DEF23B

secondary

#3728A9

accent

#2AFE41

background

#FFFFFB

surface

#FEFEF2

border

#D6D6CC

text

#17170B

muted

#85857E

Preview Lab

Preview with #DEF23B

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

Preview Lab → · Contrast checker → · Palette generator →