#63AE31#63AE31

#63AE31 is a light, vivid yellow-green. Relative luminance 0.331; OKLCH L 67.7% C 0.174 H 135.5°. Best body text is #000000 at 7.63:1 contrast (WCAG AA passes).

Color values

HEX	#63AE31
RGB	rgb(99, 174, 49)
HSL	hsl(96, 56%, 44%)
HSV	hsv(96, 72%, 68%)
CMYK	cmyk(43.1%, 0%, 71.8%, 31.8%)
CIE-LAB	lab(64.28, -44.55, 53.93)
CIE-LCH	lch(64.28, 69.95, 129.56°)
OKLab	oklab(67.71% -0.1241 0.1219)
OKLCH	oklch(67.71% 0.174 135.5)
XYZ	xyz(20.8355, 33.1453, 8.2050)
Luminance	0.3315 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63AE31 #7C31AE

analogous

#A1AE31 #63AE31 #31AE3D

triadic

#63AE31 #3163AE #AE3163

tetradic

#63AE31 #31A1AE #7C31AE #AE3D31

square

#63AE31 #31A1AE #7C31AE #AE3D31

split-complementary

#63AE31 #3D31AE #AE31A1

monochromatic

#2D4E16 #487E24 #63AE31 #81CD4F #A3DB7F

Accessibility & contrast

On white

2.75

#63AE31 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.63

#63AE31 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63AE31

7.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63AE31	#FFFFFF	#000000	##000000
##63AE31	1.00	2.75	7.63	7.63
#FFFFFF	2.75	1.00	21.00	21.00
#000000	7.63	21.00	1.00	1.00
##000000	7.63	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B4A01C

Deuteranopia (green-blind)

#AA9A3D

Tritanopia (blue-blind)

#61A795

Achromatopsia (no color)

#9C9C9C

Design tokens & code

CSS

--color: #63ae31;
/* rgb */ color: rgb(99, 174, 49);
/* oklch */ color: oklch(67.7% 0.174 135.5);

Tailwind

colors: {
  custom: {
    50: '#96c771',
    500: '#63ae31',
    950: '#000000',
  },
}

SCSS

$custom: #63ae31;
$custom-light: #96c771;
$custom-dark: #000000;

JSON

{
  "hex": "#63ae31",
  "rgb": {
    "r": 99,
    "g": 174,
    "b": 49
  },
  "hsl": {
    "h": 96,
    "s": 56.054,
    "l": 43.725
  },
  "oklch": {
    "l": 0.67714,
    "c": 0.17396,
    "h": 135.5
  },
  "luminance": 0.33147
}

Semantic roles & 50–950 ramp

primary

#63AE31

secondary

#A577C4

accent

#48DFA3

background

#F9FCF7

surface

#F2F8ED

border

#CCD1C8

text

#0E1308

muted

#7E827B

Preview Lab

Preview with #63AE31

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

Preview Lab → · Contrast checker → · Palette generator →