#C5DE40#C5DE40

#C5DE40 is a very light, vivid yellow. Relative luminance 0.645; OKLCH L 85.4% C 0.177 H 118.2°. Best body text is #000000 at 13.90:1 contrast (WCAG AA passes).

Color values

HEX	#C5DE40
RGB	rgb(197, 222, 64)
HSL	hsl(69, 71%, 56%)
HSV	hsv(69, 71%, 87%)
CMYK	cmyk(11.3%, 0%, 71.2%, 12.9%)
CIE-LAB	lab(84.22, -28.14, 70.28)
CIE-LCH	lch(84.22, 75.71, 111.82°)
OKLab	oklab(85.43% -0.0839 0.1563)
OKLCH	oklch(85.43% 0.177 118.2)
XYZ	xyz(50.0737, 64.4835, 14.6582)
Luminance	0.6448 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C5DE40 #5940DE

analogous

#DEA840 #C5DE40 #76DE40

triadic

#C5DE40 #40C5DE #DE40C5

tetradic

#C5DE40 #40DEA8 #5940DE #DE4076

square

#C5DE40 #40DEA8 #5940DE #DE4076

split-complementary

#C5DE40 #4076DE #A840DE

monochromatic

#798B18 #A7C021 #C5DE40 #D5E774 #E5F0A8

Accessibility & contrast

On white

1.51

#C5DE40 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.90

#C5DE40 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #C5DE40

13.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C5DE40	#FFFFFF	#000000	##000000
##C5DE40	1.00	1.51	13.90	13.90
#FFFFFF	1.51	1.00	21.00	21.00
#000000	13.90	21.00	1.00	1.00
##000000	13.90	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#EDD223

Deuteranopia (green-blind)

#EAD34D

Tritanopia (blue-blind)

#D1D2BF

Achromatopsia (no color)

#D2D2D2

Design tokens & code

CSS

--color: #c5de40;
/* rgb */ color: rgb(197, 222, 64);
/* oklch */ color: oklch(85.4% 0.177 118.2);

Tailwind

colors: {
  custom: {
    50: '#dae87f',
    500: '#c5de40',
    950: '#000000',
  },
}

SCSS

$custom: #c5de40;
$custom-light: #dae87f;
$custom-dark: #000000;

JSON

{
  "hex": "#c5de40",
  "rgb": {
    "r": 197,
    "g": 222,
    "b": 64
  },
  "hsl": {
    "h": 69.494,
    "s": 70.536,
    "l": 56.078
  },
  "oklch": {
    "l": 0.85431,
    "c": 0.17742,
    "h": 118.2
  },
  "luminance": 0.64483
}

Semantic roles & 50–950 ramp

primary

#C5DE40

secondary

#403191

accent

#3AED57

background

#FEFEFB

surface

#FCFCF2

border

#D5D5CC

text

#15160B

muted

#84847E

Preview Lab

Preview with #C5DE40

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

Preview Lab → · Contrast checker → · Palette generator →