#64B531#64B531

#64B531 is a light, vivid yellow-green. Relative luminance 0.360; OKLCH L 69.5% C 0.182 H 136.0°. Best body text is #000000 at 8.20:1 contrast (WCAG AA passes).

Color values

HEX	#64B531
RGB	rgb(100, 181, 49)
HSL	hsl(97, 57%, 45%)
HSV	hsv(97, 73%, 71%)
CMYK	cmyk(44.8%, 0%, 72.9%, 29%)
CIE-LAB	lab(66.50, -47.08, 56.19)
CIE-LCH	lch(66.50, 73.31, 129.96°)
OKLab	oklab(69.55% -0.131 0.1266)
OKLCH	oklch(69.55% 0.182 136)
XYZ	xyz(22.3332, 35.9775, 8.6727)
Luminance	0.3598 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#64B531 #8231B5

analogous

#A6B531 #64B531 #31B540

triadic

#64B531 #3164B5 #B53164

tetradic

#64B531 #31A6B5 #8231B5 #B54031

square

#64B531 #31A6B5 #8231B5 #B54031

split-complementary

#64B531 #4031B5 #B531A6

monochromatic

#2F5517 #498524 #64B531 #83D053 #A6DD83

Accessibility & contrast

On white

2.56

#64B531 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.20

#64B531 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #64B531

8.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##64B531	#FFFFFF	#000000	##000000
##64B531	1.00	2.56	8.20	8.20
#FFFFFF	2.56	1.00	21.00	21.00
#000000	8.20	21.00	1.00	1.00
##000000	8.20	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BBA619

Deuteranopia (green-blind)

#B19F3E

Tritanopia (blue-blind)

#61AE9B

Achromatopsia (no color)

#A2A2A2

Design tokens & code

CSS

--color: #64b531;
/* rgb */ color: rgb(100, 181, 49);
/* oklch */ color: oklch(69.5% 0.182 136.0);

Tailwind

colors: {
  custom: {
    50: '#97cc72',
    500: '#64b531',
    950: '#000000',
  },
}

SCSS

$custom: #64b531;
$custom-light: #97cc72;
$custom-dark: #000000;

JSON

{
  "hex": "#64b531",
  "rgb": {
    "r": 100,
    "g": 181,
    "b": 49
  },
  "hsl": {
    "h": 96.818,
    "s": 57.391,
    "l": 45.098
  },
  "oklch": {
    "l": 0.6955,
    "c": 0.18219,
    "h": 136
  },
  "luminance": 0.35979
}

Semantic roles & 50–950 ramp

primary

#64B531

secondary

#A97BC7

accent

#47E1A5

background

#F9FCF7

surface

#F2F9ED

border

#CCD2C8

text

#0E1308

muted

#7E827B

Preview Lab

Preview with #64B531

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

Preview Lab → · Contrast checker → · Palette generator →