#63BE33#63BE33

#63BE33 is a light, vivid yellow-green. Relative luminance 0.397; OKLCH L 71.8% C 0.193 H 137.1°. Best body text is #000000 at 8.94:1 contrast (WCAG AA passes).

Color values

HEX	#63BE33
RGB	rgb(99, 190, 51)
HSL	hsl(99, 58%, 47%)
HSV	hsv(99, 73%, 75%)
CMYK	cmyk(47.9%, 0%, 73.2%, 25.5%)
CIE-LAB	lab(69.27, -50.82, 58.23)
CIE-LCH	lch(69.27, 77.29, 131.11°)
OKLab	oklab(71.81% -0.141 0.1311)
OKLCH	oklch(71.81% 0.193 137.1)
XYZ	xyz(24.1559, 39.7169, 9.5246)
Luminance	0.3972 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63BE33 #8E33BE

analogous

#A8BE33 #63BE33 #33BE49

triadic

#63BE33 #3363BE #BE3363

tetradic

#63BE33 #33A8BE #8E33BE #BE4933

square

#63BE33 #33A8BE #8E33BE #BE4933

split-complementary

#63BE33 #4933BE #BE33A8

monochromatic

#315E19 #4A8E26 #63BE33 #85D35B #A9E08B

Accessibility & contrast

On white

2.35

#63BE33 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.94

#63BE33 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63BE33

8.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63BE33	#FFFFFF	#000000	##000000
##63BE33	1.00	2.35	8.94	8.94
#FFFFFF	2.35	1.00	21.00	21.00
#000000	8.94	21.00	1.00	1.00
##000000	8.94	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C4AE19

Deuteranopia (green-blind)

#B8A641

Tritanopia (blue-blind)

#5EB7A3

Achromatopsia (no color)

#A9A9A9

Design tokens & code

CSS

--color: #63be33;
/* rgb */ color: rgb(99, 190, 51);
/* oklch */ color: oklch(71.8% 0.193 137.1);

Tailwind

colors: {
  custom: {
    50: '#97d274',
    500: '#63be33',
    950: '#000000',
  },
}

SCSS

$custom: #63be33;
$custom-light: #97d274;
$custom-dark: #000000;

JSON

{
  "hex": "#63be33",
  "rgb": {
    "r": 99,
    "g": 190,
    "b": 51
  },
  "hsl": {
    "h": 99.281,
    "s": 57.676,
    "l": 47.255
  },
  "oklch": {
    "l": 0.71813,
    "c": 0.19252,
    "h": 137.1
  },
  "luminance": 0.39719
}

Semantic roles & 50–950 ramp

primary

#63BE33

secondary

#B183CA

accent

#47E1AC

background

#F9FDF7

surface

#F2FAED

border

#CCD3C8

text

#0E1409

muted

#7E837B

Preview Lab

Preview with #63BE33

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

Preview Lab → · Contrast checker → · Palette generator →