#64B31F#64B31F

#64B31F is a light, vivid yellow-green. Relative luminance 0.350; OKLCH L 68.9% C 0.189 H 134.6°. Best body text is #000000 at 8.01:1 contrast (WCAG AA passes).

Color values

HEX	#64B31F
RGB	rgb(100, 179, 31)
HSL	hsl(92, 70%, 41%)
HSV	hsv(92, 83%, 70%)
CMYK	cmyk(44.1%, 0%, 82.7%, 29.8%)
CIE-LAB	lab(65.79, -47.29, 61.19)
CIE-LCH	lch(65.79, 77.34, 127.70°)
OKLab	oklab(68.93% -0.1327 0.1344)
OKLCH	oklch(68.93% 0.189 134.6)
XYZ	xyz(21.6225, 35.0472, 6.9215)
Luminance	0.3505 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#64B31F #6E1FB3

analogous

#AEB31F #64B31F #1FB324

triadic

#64B31F #1F64B3 #B31F64

tetradic

#64B31F #1FAEB3 #6E1FB3 #B3241F

square

#64B31F #1FAEB3 #6E1FB3 #B3241F

split-complementary

#64B31F #241FB3 #B31FAE

monochromatic

#2A4B0D #477F16 #64B31F #82DC33 #A2E568

Accessibility & contrast

On white

2.62

#64B31F on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.01

#64B31F on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #64B31F

8.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##64B31F	#FFFFFF	#000000	##000000
##64B31F	1.00	2.62	8.01	8.01
#FFFFFF	2.62	1.00	21.00	21.00
#000000	8.01	21.00	1.00	1.00
##000000	8.01	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BAA400

Deuteranopia (green-blind)

#B09D31

Tritanopia (blue-blind)

#62AC99

Achromatopsia (no color)

#A0A0A0

Design tokens & code

CSS

--color: #64b31f;
/* rgb */ color: rgb(100, 179, 31);
/* oklch */ color: oklch(68.9% 0.189 134.6);

Tailwind

colors: {
  custom: {
    50: '#97ca69',
    500: '#64b31f',
    950: '#000000',
  },
}

SCSS

$custom: #64b31f;
$custom-light: #97ca69;
$custom-dark: #000000;

JSON

{
  "hex": "#64b31f",
  "rgb": {
    "r": 100,
    "g": 179,
    "b": 31
  },
  "hsl": {
    "h": 92.027,
    "s": 70.476,
    "l": 41.176
  },
  "oklch": {
    "l": 0.68931,
    "c": 0.1889,
    "h": 134.6
  },
  "luminance": 0.35048
}

Semantic roles & 50–950 ramp

primary

#64B31F

secondary

#9A64CA

accent

#3BED9A

background

#F9FCF6

surface

#F2F8EC

border

#CCD1C7

text

#0E1307

muted

#7E827A

Preview Lab

Preview with #64B31F

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

Preview Lab → · Contrast checker → · Palette generator →