#63B537#63B537

#63B537 is a light, vivid yellow-green. Relative luminance 0.360; OKLCH L 69.5% C 0.179 H 136.7°. Best body text is #000000 at 8.20:1 contrast (WCAG AA passes).

Color values

HEX	#63B537
RGB	rgb(99, 181, 55)
HSL	hsl(99, 53%, 46%)
HSV	hsv(99, 70%, 71%)
CMYK	cmyk(45.3%, 0%, 69.6%, 29%)
CIE-LAB	lab(66.50, -46.95, 53.91)
CIE-LCH	lch(66.50, 71.49, 131.05°)
OKLab	oklab(69.55% -0.1302 0.1226)
OKLCH	oklch(69.55% 0.179 136.7)
XYZ	xyz(22.3584, 35.9748, 9.3794)
Luminance	0.3598 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63B537 #8937B5

analogous

#A2B537 #63B537 #37B54A

triadic

#63B537 #3763B5 #B53763

tetradic

#63B537 #37A2B5 #8937B5 #B54A37

square

#63B537 #37A2B5 #8937B5 #B54A37

split-complementary

#63B537 #4A37B5 #B537A2

monochromatic

#30571A #498629 #63B537 #83CD5C #A7DC8B

Accessibility & contrast

On white

2.56

#63B537 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.20

#63B537 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B537

8.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63B537	#FFFFFF	#000000	##000000
##63B537	1.00	2.56	8.20	8.20
#FFFFFF	2.56	1.00	21.00	21.00
#000000	8.20	21.00	1.00	1.00
##000000	8.20	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BBA624

Deuteranopia (green-blind)

#B09F43

Tritanopia (blue-blind)

#5FAE9C

Achromatopsia (no color)

#A2A2A2

Design tokens & code

CSS

--color: #63b537;
/* rgb */ color: rgb(99, 181, 55);
/* oklch */ color: oklch(69.5% 0.179 136.7);

Tailwind

colors: {
  custom: {
    50: '#96cc75',
    500: '#63b537',
    950: '#000000',
  },
}

SCSS

$custom: #63b537;
$custom-light: #96cc75;
$custom-dark: #000000;

JSON

{
  "hex": "#63b537",
  "rgb": {
    "r": 99,
    "g": 181,
    "b": 55
  },
  "hsl": {
    "h": 99.048,
    "s": 53.39,
    "l": 46.275
  },
  "oklch": {
    "l": 0.69549,
    "c": 0.17888,
    "h": 136.7
  },
  "luminance": 0.35976
}

Semantic roles & 50–950 ramp

primary

#63B537

secondary

#AE82C6

accent

#4BDDAA

background

#F9FCF7

surface

#F2F9ED

border

#CCD2C8

text

#0E1309

muted

#7E827B

Preview Lab

Preview with #63B537

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

Preview Lab → · Contrast checker → · Palette generator →