#3FCA19#3FCA19

#3FCA19 is a light, highly saturated green. Relative luminance 0.434; OKLCH L 73.6% C 0.232 H 140.6°. Best body text is #000000 at 9.67:1 contrast (WCAG AA passes).

Color values

HEX	#3FCA19
RGB	rgb(63, 202, 25)
HSL	hsl(107, 78%, 45%)
HSV	hsv(107, 88%, 79%)
CMYK	cmyk(68.8%, 0%, 87.6%, 20.8%)
CIE-LAB	lab(71.80, -65.33, 67.41)
CIE-LCH	lch(71.80, 93.87, 134.10°)
OKLab	oklab(73.56% -0.179 0.1473)
OKLCH	oklch(73.56% 0.232 140.6)
XYZ	xyz(23.3447, 43.3655, 8.0596)
Luminance	0.4337 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3FCA19 #A419CA

analogous

#97CA19 #3FCA19 #19CA4C

triadic

#3FCA19 #193FCA #CA193F

tetradic

#3FCA19 #1997CA #A419CA #CA4C19

square

#3FCA19 #1997CA #A419CA #CA4C19

split-complementary

#3FCA19 #4C19CA #CA1997

monochromatic

#1D5D0C #2E9412 #3FCA19 #5FE73A #8BED70

Accessibility & contrast

On white

2.17

#3FCA19 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.67

#3FCA19 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #3FCA19

9.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3FCA19	#FFFFFF	#000000	##000000
##3FCA19	1.00	2.17	9.67	9.67
#FFFFFF	2.17	1.00	21.00	21.00
#000000	9.67	21.00	1.00	1.00
##000000	9.67	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CFB700

Deuteranopia (green-blind)

#C0AC34

Tritanopia (blue-blind)

#21C3AC

Achromatopsia (no color)

#B0B0B0

Design tokens & code

CSS

--color: #3fca19;
/* rgb */ color: rgb(63, 202, 25);
/* oklch */ color: oklch(73.6% 0.232 140.6);

Tailwind

colors: {
  custom: {
    50: '#88db6b',
    500: '#3fca19',
    950: '#000000',
  },
}

SCSS

$custom: #3fca19;
$custom-light: #88db6b;
$custom-dark: #000000;

JSON

{
  "hex": "#3fca19",
  "rgb": {
    "r": 63,
    "g": 202,
    "b": 25
  },
  "hsl": {
    "h": 107.119,
    "s": 77.974,
    "l": 44.51
  },
  "oklch": {
    "l": 0.73558,
    "c": 0.23183,
    "h": 140.6
  },
  "luminance": 0.43368
}

Semantic roles & 50–950 ramp

primary

#3FCA19

secondary

#BD6BD4

accent

#33F4CB

background

#F9FDF6

surface

#F1FBEC

border

#CBD4C7

text

#0D1508

muted

#7E837A

Preview Lab

Preview with #3FCA19

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

Preview Lab → · Contrast checker → · Palette generator →