#63B536#63B536

#63B536 is a light, vivid yellow-green. Relative luminance 0.360; OKLCH L 69.5% C 0.180 H 136.6°. Best body text is #000000 at 8.19:1 contrast (WCAG AA passes).

Color values

HEX	#63B536
RGB	rgb(99, 181, 54)
HSL	hsl(99, 54%, 46%)
HSV	hsv(99, 70%, 71%)
CMYK	cmyk(45.3%, 0%, 70.2%, 29%)
CIE-LAB	lab(66.49, -47.03, 54.30)
CIE-LCH	lch(66.49, 71.83, 130.90°)
OKLab	oklab(69.54% -0.1305 0.1233)
OKLCH	oklch(69.54% 0.18 136.6)
XYZ	xyz(22.3347, 35.9653, 9.2544)
Luminance	0.3597 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63B536 #8836B5

analogous

#A2B536 #63B536 #36B548

triadic

#63B536 #3663B5 #B53663

tetradic

#63B536 #36A2B5 #8836B5 #B54836

square

#63B536 #36A2B5 #8836B5 #B54836

split-complementary

#63B536 #4836B5 #B536A2

monochromatic

#2F571A #498628 #63B536 #83CE5A #A7DC89

Accessibility & contrast

On white

2.56

#63B536 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.19

#63B536 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B536

8.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63B536	#FFFFFF	#000000	##000000
##63B536	1.00	2.56	8.19	8.19
#FFFFFF	2.56	1.00	21.00	21.00
#000000	8.19	21.00	1.00	1.00
##000000	8.19	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BBA622

Deuteranopia (green-blind)

#B09F42

Tritanopia (blue-blind)

#5FAE9C

Achromatopsia (no color)

#A2A2A2

Design tokens & code

CSS

--color: #63b536;
/* rgb */ color: rgb(99, 181, 54);
/* oklch */ color: oklch(69.5% 0.180 136.6);

Tailwind

colors: {
  custom: {
    50: '#96cc74',
    500: '#63b536',
    950: '#000000',
  },
}

SCSS

$custom: #63b536;
$custom-light: #96cc74;
$custom-dark: #000000;

JSON

{
  "hex": "#63b536",
  "rgb": {
    "r": 99,
    "g": 181,
    "b": 54
  },
  "hsl": {
    "h": 98.74,
    "s": 54.043,
    "l": 46.078
  },
  "oklch": {
    "l": 0.69541,
    "c": 0.17954,
    "h": 136.6
  },
  "luminance": 0.35967
}

Semantic roles & 50–950 ramp

primary

#63B536

secondary

#AD81C6

accent

#4ADDA9

background

#F9FCF7

surface

#F2F9ED

border

#CCD2C8

text

#0E1309

muted

#7E827B

Preview Lab

Preview with #63B536

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

Preview Lab → · Contrast checker → · Palette generator →