#63B633#63B633

#63B633 is a light, vivid yellow-green. Relative luminance 0.363; OKLCH L 69.8% C 0.183 H 136.4°. Best body text is #000000 at 8.27:1 contrast (WCAG AA passes).

Color values

HEX	#63B633
RGB	rgb(99, 182, 51)
HSL	hsl(98, 56%, 46%)
HSV	hsv(98, 72%, 71%)
CMYK	cmyk(45.6%, 0%, 72%, 28.6%)
CIE-LAB	lab(66.78, -47.66, 55.73)
CIE-LCH	lch(66.78, 73.33, 130.54°)
OKLab	oklab(69.77% -0.1324 0.1259)
OKLCH	oklch(69.77% 0.183 136.4)
XYZ	xyz(22.4705, 36.3462, 8.9628)
Luminance	0.3635 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63B633 #8633B6

analogous

#A4B633 #63B633 #33B644

triadic

#63B633 #3363B6 #B63363

tetradic

#63B633 #33A4B6 #8633B6 #B64433

square

#63B633 #33A4B6 #8633B6 #B64433

split-complementary

#63B633 #4433B6 #B633A4

monochromatic

#2F5618 #498626 #63B633 #83D056 #A6DD86

Accessibility & contrast

On white

2.54

#63B633 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.27

#63B633 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B633

8.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63B633	#FFFFFF	#000000	##000000
##63B633	1.00	2.54	8.27	8.27
#FFFFFF	2.54	1.00	21.00	21.00
#000000	8.27	21.00	1.00	1.00
##000000	8.27	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BCA71C

Deuteranopia (green-blind)

#B1A040

Tritanopia (blue-blind)

#5FAF9C

Achromatopsia (no color)

#A2A2A2

Design tokens & code

CSS

--color: #63b633;
/* rgb */ color: rgb(99, 182, 51);
/* oklch */ color: oklch(69.8% 0.183 136.4);

Tailwind

colors: {
  custom: {
    50: '#96cc73',
    500: '#63b633',
    950: '#000000',
  },
}

SCSS

$custom: #63b633;
$custom-light: #96cc73;
$custom-dark: #000000;

JSON

{
  "hex": "#63b633",
  "rgb": {
    "r": 99,
    "g": 182,
    "b": 51
  },
  "hsl": {
    "h": 98.015,
    "s": 56.223,
    "l": 45.686
  },
  "oklch": {
    "l": 0.69773,
    "c": 0.1827,
    "h": 136.4
  },
  "luminance": 0.36348
}

Semantic roles & 50–950 ramp

primary

#63B633

secondary

#AC7EC7

accent

#48E0A8

background

#F9FCF7

surface

#F2F9ED

border

#CCD2C8

text

#0E1308

muted

#7E827B

Preview Lab

Preview with #63B633

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

Preview Lab → · Contrast checker → · Palette generator →