#64B538#64B538

#64B538 is a light, vivid yellow-green. Relative luminance 0.360; OKLCH L 69.6% C 0.178 H 136.6°. Best body text is #000000 at 8.21:1 contrast (WCAG AA passes).

Color values

HEX	#64B538
RGB	rgb(100, 181, 56)
HSL	hsl(99, 53%, 46%)
HSV	hsv(99, 69%, 71%)
CMYK	cmyk(44.8%, 0%, 69.1%, 29%)
CIE-LAB	lab(66.55, -46.56, 53.59)
CIE-LCH	lch(66.55, 70.99, 130.98°)
OKLab	oklab(69.6% -0.1291 0.1221)
OKLCH	oklch(69.6% 0.178 136.6)
XYZ	xyz(22.4926, 36.0412, 9.5121)
Luminance	0.3604 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#64B538 #8938B5

analogous

#A3B538 #64B538 #38B54B

triadic

#64B538 #3864B5 #B53864

tetradic

#64B538 #38A3B5 #8938B5 #B54B38

square

#64B538 #38A3B5 #8938B5 #B54B38

split-complementary

#64B538 #4B38B5 #B538A3

monochromatic

#30581B #4A862A #64B538 #85CD5D #A8DB8C

Accessibility & contrast

On white

2.56

#64B538 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.21

#64B538 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #64B538

8.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##64B538	#FFFFFF	#000000	##000000
##64B538	1.00	2.56	8.21	8.21
#FFFFFF	2.56	1.00	21.00	21.00
#000000	8.21	21.00	1.00	1.00
##000000	8.21	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BBA625

Deuteranopia (green-blind)

#B09F43

Tritanopia (blue-blind)

#60AE9C

Achromatopsia (no color)

#A2A2A2

Design tokens & code

CSS

--color: #64b538;
/* rgb */ color: rgb(100, 181, 56);
/* oklch */ color: oklch(69.6% 0.178 136.6);

Tailwind

colors: {
  custom: {
    50: '#97cc75',
    500: '#64b538',
    950: '#000000',
  },
}

SCSS

$custom: #64b538;
$custom-light: #97cc75;
$custom-dark: #000000;

JSON

{
  "hex": "#64b538",
  "rgb": {
    "r": 100,
    "g": 181,
    "b": 56
  },
  "hsl": {
    "h": 98.88,
    "s": 52.743,
    "l": 46.471
  },
  "oklch": {
    "l": 0.69605,
    "c": 0.17771,
    "h": 136.6
  },
  "luminance": 0.36043
}

Semantic roles & 50–950 ramp

primary

#64B538

secondary

#AE83C6

accent

#4CDCA9

background

#F9FCF7

surface

#F2F9ED

border

#CCD2C8

text

#0E1309

muted

#7E827B

Preview Lab

Preview with #64B538

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

Preview Lab → · Contrast checker → · Palette generator →