#63B231#63B231

#63B231 is a light, vivid yellow-green. Relative luminance 0.347; OKLCH L 68.7% C 0.179 H 135.9°. Best body text is #000000 at 7.94:1 contrast (WCAG AA passes).

Color values

HEX	#63B231
RGB	rgb(99, 178, 49)
HSL	hsl(97, 57%, 45%)
HSV	hsv(97, 72%, 70%)
CMYK	cmyk(44.4%, 0%, 72.5%, 30.2%)
CIE-LAB	lab(65.53, -46.19, 55.20)
CIE-LCH	lch(65.53, 71.97, 129.92°)
OKLab	oklab(68.74% -0.1286 0.1245)
OKLCH	oklch(68.74% 0.179 135.9)
XYZ	xyz(21.6198, 34.7139, 8.4664)
Luminance	0.3472 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63B231 #8031B2

analogous

#A4B231 #63B231 #31B240

triadic

#63B231 #3163B2 #B23163

tetradic

#63B231 #31A4B2 #8031B2 #B24031

square

#63B231 #31A4B2 #8031B2 #B24031

split-complementary

#63B231 #4031B2 #B231A4

monochromatic

#2E5217 #488224 #63B231 #82CF51 #A4DC81

Accessibility & contrast

On white

2.64

#63B231 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.94

#63B231 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B231

7.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63B231	#FFFFFF	#000000	##000000
##63B231	1.00	2.64	7.94	7.94
#FFFFFF	2.64	1.00	21.00	21.00
#000000	7.94	21.00	1.00	1.00
##000000	7.94	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B8A31A

Deuteranopia (green-blind)

#AE9D3D

Tritanopia (blue-blind)

#60AB99

Achromatopsia (no color)

#9F9F9F

Design tokens & code

CSS

--color: #63b231;
/* rgb */ color: rgb(99, 178, 49);
/* oklch */ color: oklch(68.7% 0.179 135.9);

Tailwind

colors: {
  custom: {
    50: '#96c971',
    500: '#63b231',
    950: '#000000',
  },
}

SCSS

$custom: #63b231;
$custom-light: #96c971;
$custom-dark: #000000;

JSON

{
  "hex": "#63b231",
  "rgb": {
    "r": 99,
    "g": 178,
    "b": 49
  },
  "hsl": {
    "h": 96.744,
    "s": 56.828,
    "l": 44.51
  },
  "oklch": {
    "l": 0.68736,
    "c": 0.17897,
    "h": 135.9
  },
  "luminance": 0.34715
}

Semantic roles & 50–950 ramp

primary

#63B231

secondary

#A879C5

accent

#48E0A5

background

#F9FCF7

surface

#F2F8ED

border

#CCD1C8

text

#0E1308

muted

#7E827B

Preview Lab

Preview with #63B231

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

Preview Lab → · Contrast checker → · Palette generator →