#63AE3B#63AE3B

#63AE3B is a light, vivid yellow-green. Relative luminance 0.332; OKLCH L 67.8% C 0.167 H 136.5°. Best body text is #000000 at 7.65:1 contrast (WCAG AA passes).

Color values

HEX	#63AE3B
RGB	rgb(99, 174, 59)
HSL	hsl(99, 49%, 46%)
HSV	hsv(99, 66%, 68%)
CMYK	cmyk(43.1%, 0%, 66.1%, 31.8%)
CIE-LAB	lab(64.35, -43.75, 50.02)
CIE-LCH	lch(64.35, 66.45, 131.17°)
OKLab	oklab(67.8% -0.1212 0.115)
OKLCH	oklch(67.8% 0.167 136.5)
XYZ	xyz(21.0705, 33.2393, 9.4424)
Luminance	0.3324 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63AE3B #863BAE

analogous

#9CAE3B #63AE3B #3BAE4C

triadic

#63AE3B #3B63AE #AE3B63

tetradic

#63AE3B #3B9CAE #863BAE #AE4C3B

square

#63AE3B #3B9CAE #863BAE #AE4C3B

split-complementary

#63AE3B #4C3BAE #AE3B9C

monochromatic

#2F531C #49802C #63AE3B #83C85E #A6D88C

Accessibility & contrast

On white

2.75

#63AE3B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.65

#63AE3B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63AE3B

7.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63AE3B	#FFFFFF	#000000	##000000
##63AE3B	1.00	2.75	7.65	7.65
#FFFFFF	2.75	1.00	21.00	21.00
#000000	7.65	21.00	1.00	1.00
##000000	7.65	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B4A02C

Deuteranopia (green-blind)

#AA9A45

Tritanopia (blue-blind)

#60A896

Achromatopsia (no color)

#9C9C9C

Design tokens & code

CSS

--color: #63ae3b;
/* rgb */ color: rgb(99, 174, 59);
/* oklch */ color: oklch(67.8% 0.167 136.5);

Tailwind

colors: {
  custom: {
    50: '#95c776',
    500: '#63ae3b',
    950: '#000000',
  },
}

SCSS

$custom: #63ae3b;
$custom-light: #95c776;
$custom-dark: #000000;

JSON

{
  "hex": "#63ae3b",
  "rgb": {
    "r": 99,
    "g": 174,
    "b": 59
  },
  "hsl": {
    "h": 99.13,
    "s": 49.356,
    "l": 45.686
  },
  "oklch": {
    "l": 0.678,
    "c": 0.16707,
    "h": 136.5
  },
  "luminance": 0.33241
}

Semantic roles & 50–950 ramp

primary

#63AE3B

secondary

#AC82C2

accent

#4FD9A9

background

#F9FCF7

surface

#F2F8ED

border

#CCD1C8

text

#0E1309

muted

#7E827B

Preview Lab

Preview with #63AE3B

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

Preview Lab → · Contrast checker → · Palette generator →