#63BE31#63BE31

#63BE31 is a light, vivid yellow-green. Relative luminance 0.397; OKLCH L 71.8% C 0.194 H 136.9°. Best body text is #000000 at 8.94:1 contrast (WCAG AA passes).

Color values

HEX	#63BE31
RGB	rgb(99, 190, 49)
HSL	hsl(99, 59%, 47%)
HSV	hsv(99, 74%, 75%)
CMYK	cmyk(47.9%, 0%, 74.2%, 25.5%)
CIE-LAB	lab(69.26, -50.96, 58.92)
CIE-LCH	lch(69.26, 77.90, 130.85°)
OKLab	oklab(71.8% -0.1414 0.1323)
OKLCH	oklch(71.8% 0.194 136.9)
XYZ	xyz(24.1127, 39.6997, 9.2974)
Luminance	0.3970 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63BE31 #8C31BE

analogous

#AABE31 #63BE31 #31BE45

triadic

#63BE31 #3163BE #BE3163

tetradic

#63BE31 #31AABE #8C31BE #BE4531

square

#63BE31 #31AABE #8C31BE #BE4531

split-complementary

#63BE31 #4531BE #BE31AA

monochromatic

#305D18 #4A8D24 #63BE31 #84D458 #A8E189

Accessibility & contrast

On white

2.35

#63BE31 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.94

#63BE31 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63BE31

8.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63BE31	#FFFFFF	#000000	##000000
##63BE31	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)

#C4AE14

Deuteranopia (green-blind)

#B8A63F

Tritanopia (blue-blind)

#5EB7A3

Achromatopsia (no color)

#A9A9A9

Design tokens & code

CSS

--color: #63be31;
/* rgb */ color: rgb(99, 190, 49);
/* oklch */ color: oklch(71.8% 0.194 136.9);

Tailwind

colors: {
  custom: {
    50: '#97d273',
    500: '#63be31',
    950: '#000000',
  },
}

SCSS

$custom: #63be31;
$custom-light: #97d273;
$custom-dark: #000000;

JSON

{
  "hex": "#63be31",
  "rgb": {
    "r": 99,
    "g": 190,
    "b": 49
  },
  "hsl": {
    "h": 98.723,
    "s": 58.996,
    "l": 46.863
  },
  "oklch": {
    "l": 0.71798,
    "c": 0.19366,
    "h": 136.9
  },
  "luminance": 0.39701
}

Semantic roles & 50–950 ramp

primary

#63BE31

secondary

#B080CA

accent

#46E2AB

background

#F9FDF7

surface

#F2FAED

border

#CCD3C8

text

#0E1409

muted

#7E837B

Preview Lab

Preview with #63BE31

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

Preview Lab → · Contrast checker → · Palette generator →