#63B533#63B533

#63B533 is a light, vivid yellow-green. Relative luminance 0.359; OKLCH L 69.5% C 0.181 H 136.4°. Best body text is #000000 at 8.19:1 contrast (WCAG AA passes).

Color values

HEX	#63B533
RGB	rgb(99, 181, 51)
HSL	hsl(98, 56%, 45%)
HSV	hsv(98, 72%, 71%)
CMYK	cmyk(45.3%, 0%, 71.8%, 29%)
CIE-LAB	lab(66.47, -47.26, 55.41)
CIE-LCH	lch(66.47, 72.83, 130.46°)
OKLab	oklab(69.52% -0.1313 0.1252)
OKLCH	oklch(69.52% 0.181 136.4)
XYZ	xyz(22.2664, 35.9380, 8.8948)
Luminance	0.3594 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63B533 #8533B5

analogous

#A4B533 #63B533 #33B544

triadic

#63B533 #3363B5 #B53363

tetradic

#63B533 #33A4B5 #8533B5 #B54433

square

#63B533 #33A4B5 #8533B5 #B54433

split-complementary

#63B533 #4433B5 #B533A4

monochromatic

#2F5618 #498526 #63B533 #83CF56 #A6DD86

Accessibility & contrast

On white

2.56

#63B533 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.19

#63B533 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B533

8.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63B533	#FFFFFF	#000000	##000000
##63B533	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)

#BBA61D

Deuteranopia (green-blind)

#B09F3F

Tritanopia (blue-blind)

#5FAE9C

Achromatopsia (no color)

#A2A2A2

Design tokens & code

CSS

--color: #63b533;
/* rgb */ color: rgb(99, 181, 51);
/* oklch */ color: oklch(69.5% 0.181 136.4);

Tailwind

colors: {
  custom: {
    50: '#96cc73',
    500: '#63b533',
    950: '#000000',
  },
}

SCSS

$custom: #63b533;
$custom-light: #96cc73;
$custom-dark: #000000;

JSON

{
  "hex": "#63b533",
  "rgb": {
    "r": 99,
    "g": 181,
    "b": 51
  },
  "hsl": {
    "h": 97.846,
    "s": 56.034,
    "l": 45.49
  },
  "oklch": {
    "l": 0.69517,
    "c": 0.18147,
    "h": 136.4
  },
  "luminance": 0.35939
}

Semantic roles & 50–950 ramp

primary

#63B533

secondary

#AB7DC6

accent

#48DFA8

background

#F9FCF7

surface

#F2F9ED

border

#CCD2C8

text

#0E1308

muted

#7E827B

Preview Lab

Preview with #63B533

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

Preview Lab → · Contrast checker → · Palette generator →