#63AB31#63AB31

#63AB31 is a light, vivid yellow-green. Relative luminance 0.320; OKLCH L 66.9% C 0.170 H 135.2°. Best body text is #000000 at 7.40:1 contrast (WCAG AA passes).

Color values

HEX	#63AB31
RGB	rgb(99, 171, 49)
HSL	hsl(95, 55%, 43%)
HSV	hsv(95, 71%, 67%)
CMYK	cmyk(42.1%, 0%, 71.3%, 32.9%)
CIE-LAB	lab(63.34, -43.30, 52.98)
CIE-LCH	lch(63.34, 68.43, 129.26°)
OKLab	oklab(66.95% -0.1208 0.1199)
OKLCH	oklch(66.95% 0.17 135.2)
XYZ	xyz(20.2624, 31.9991, 8.0139)
Luminance	0.3200 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63AB31 #7931AB

analogous

#A0AB31 #63AB31 #31AB3C

triadic

#63AB31 #3163AB #AB3163

tetradic

#63AB31 #31A0AB #7931AB #AB3C31

square

#63AB31 #31A0AB #7931AB #AB3C31

split-complementary

#63AB31 #3C31AB #AB31A0

monochromatic

#2C4C16 #477B23 #63AB31 #81CC4D #A3DA7D

Accessibility & contrast

On white

2.84

#63AB31 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.40

#63AB31 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63AB31

7.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63AB31	#FFFFFF	#000000	##000000
##63AB31	1.00	2.84	7.40	7.40
#FFFFFF	2.84	1.00	21.00	21.00
#000000	7.40	21.00	1.00	1.00
##000000	7.40	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B19D1D

Deuteranopia (green-blind)

#A8973C

Tritanopia (blue-blind)

#61A593

Achromatopsia (no color)

#999999

Design tokens & code

CSS

--color: #63ab31;
/* rgb */ color: rgb(99, 171, 49);
/* oklch */ color: oklch(66.9% 0.170 135.2);

Tailwind

colors: {
  custom: {
    50: '#95c471',
    500: '#63ab31',
    950: '#000000',
  },
}

SCSS

$custom: #63ab31;
$custom-light: #95c471;
$custom-dark: #000000;

JSON

{
  "hex": "#63ab31",
  "rgb": {
    "r": 99,
    "g": 171,
    "b": 49
  },
  "hsl": {
    "h": 95.41,
    "s": 55.455,
    "l": 43.137
  },
  "oklch": {
    "l": 0.66947,
    "c": 0.17015,
    "h": 135.2
  },
  "luminance": 0.32
}

Semantic roles & 50–950 ramp

primary

#63AB31

secondary

#A375C2

accent

#49DFA1

background

#F9FCF7

surface

#F2F8ED

border

#CCD1C8

text

#0E1308

muted

#7E827B

Preview Lab

Preview with #63AB31

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

Preview Lab → · Contrast checker → · Palette generator →