#63AD33#63AD33

#63AD33 is a light, vivid yellow-green. Relative luminance 0.328; OKLCH L 67.5% C 0.171 H 135.6°. Best body text is #000000 at 7.56:1 contrast (WCAG AA passes).

Color values

HEX	#63AD33
RGB	rgb(99, 173, 51)
HSL	hsl(96, 54%, 44%)
HSV	hsv(96, 71%, 68%)
CMYK	cmyk(42.8%, 0%, 70.5%, 32.2%)
CIE-LAB	lab(63.98, -43.98, 52.87)
CIE-LCH	lch(63.98, 68.77, 129.76°)
OKLab	oklab(67.47% -0.1225 0.1199)
OKLCH	oklch(67.47% 0.171 135.6)
XYZ	xyz(20.6862, 32.7776, 8.3680)
Luminance	0.3278 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63AD33 #7D33AD

analogous

#A0AD33 #63AD33 #33AD40

triadic

#63AD33 #3363AD #AD3363

tetradic

#63AD33 #33A0AD #7D33AD #AD4033

square

#63AD33 #33A0AD #7D33AD #AD4033

split-complementary

#63AD33 #4033AD #AD33A0

monochromatic

#2D4E17 #487E25 #63AD33 #82CC51 #A4DA81

Accessibility & contrast

On white

2.78

#63AD33 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.56

#63AD33 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63AD33

7.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63AD33	#FFFFFF	#000000	##000000
##63AD33	1.00	2.78	7.56	7.56
#FFFFFF	2.78	1.00	21.00	21.00
#000000	7.56	21.00	1.00	1.00
##000000	7.56	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B39F20

Deuteranopia (green-blind)

#A9993E

Tritanopia (blue-blind)

#61A795

Achromatopsia (no color)

#9B9B9B

Design tokens & code

CSS

--color: #63ad33;
/* rgb */ color: rgb(99, 173, 51);
/* oklch */ color: oklch(67.5% 0.171 135.6);

Tailwind

colors: {
  custom: {
    50: '#95c672',
    500: '#63ad33',
    950: '#000000',
  },
}

SCSS

$custom: #63ad33;
$custom-light: #95c672;
$custom-dark: #000000;

JSON

{
  "hex": "#63ad33",
  "rgb": {
    "r": 99,
    "g": 173,
    "b": 51
  },
  "hsl": {
    "h": 96.393,
    "s": 54.464,
    "l": 43.922
  },
  "oklch": {
    "l": 0.67474,
    "c": 0.17139,
    "h": 135.6
  },
  "luminance": 0.32779
}

Semantic roles & 50–950 ramp

primary

#63AD33

secondary

#A679C3

accent

#4ADEA4

background

#F9FCF7

surface

#F2F8ED

border

#CCD1C8

text

#0E1308

muted

#7E827B

Preview Lab

Preview with #63AD33

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

Preview Lab → · Contrast checker → · Palette generator →