#C5DE3B#C5DE3B

#C5DE3B is a very light, vivid yellow. Relative luminance 0.644; OKLCH L 85.4% C 0.180 H 118.1°. Best body text is #000000 at 13.89:1 contrast (WCAG AA passes).

Color values

HEX	#C5DE3B
RGB	rgb(197, 222, 59)
HSL	hsl(69, 71%, 55%)
HSV	hsv(69, 73%, 87%)
CMYK	cmyk(11.3%, 0%, 73.4%, 12.9%)
CIE-LAB	lab(84.19, -28.39, 71.93)
CIE-LCH	lch(84.19, 77.33, 111.54°)
OKLab	oklab(85.4% -0.085 0.159)
OKLCH	oklch(85.4% 0.18 118.1)
XYZ	xyz(49.9378, 64.4291, 13.9422)
Luminance	0.6443 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C5DE3B #543BDE

analogous

#DEA53B #C5DE3B #74DE3B

triadic

#C5DE3B #3BC5DE #DE3BC5

tetradic

#C5DE3B #3BDEA5 #543BDE #DE3B74

square

#C5DE3B #3BDEA5 #543BDE #DE3B74

split-complementary

#C5DE3B #3B74DE #A53BDE

monochromatic

#768817 #A4BC20 #C5DE3B #D5E76F #E4F0A4

Accessibility & contrast

On white

1.51

#C5DE3B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.89

#C5DE3B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #C5DE3B

13.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C5DE3B	#FFFFFF	#000000	##000000
##C5DE3B	1.00	1.51	13.89	13.89
#FFFFFF	1.51	1.00	21.00	21.00
#000000	13.89	21.00	1.00	1.00
##000000	13.89	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#EDD217

Deuteranopia (green-blind)

#EAD349

Tritanopia (blue-blind)

#D1D2BF

Achromatopsia (no color)

#D2D2D2

Design tokens & code

CSS

--color: #c5de3b;
/* rgb */ color: rgb(197, 222, 59);
/* oklch */ color: oklch(85.4% 0.180 118.1);

Tailwind

colors: {
  custom: {
    50: '#dae87d',
    500: '#c5de3b',
    950: '#000000',
  },
}

SCSS

$custom: #c5de3b;
$custom-light: #dae87d;
$custom-dark: #000000;

JSON

{
  "hex": "#c5de3b",
  "rgb": {
    "r": 197,
    "g": 222,
    "b": 59
  },
  "hsl": {
    "h": 69.202,
    "s": 71.179,
    "l": 55.098
  },
  "oklch": {
    "l": 0.85399,
    "c": 0.18028,
    "h": 118.1
  },
  "luminance": 0.64429
}

Semantic roles & 50–950 ramp

primary

#C5DE3B

secondary

#3E2F8E

accent

#3AEE55

background

#FEFEFB

surface

#FCFCF2

border

#D5D5CC

text

#15160A

muted

#84847D

Preview Lab

Preview with #C5DE3B

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

Preview Lab → · Contrast checker → · Palette generator →