#3FB531#3FB531

#3FB531 is a light, vivid green. Relative luminance 0.343; OKLCH L 68.1% C 0.199 H 141.6°. Best body text is #000000 at 7.87:1 contrast (WCAG AA passes).

Color values

HEX	#3FB531
RGB	rgb(63, 181, 49)
HSL	hsl(114, 57%, 45%)
HSV	hsv(114, 73%, 71%)
CMYK	cmyk(65.2%, 0%, 72.9%, 29%)
CIE-LAB	lab(65.22, -57.08, 54.48)
CIE-LCH	lch(65.22, 78.91, 136.33°)
OKLab	oklab(68.13% -0.1557 0.1234)
OKLCH	oklch(68.13% 0.199 141.6)
XYZ	xyz(19.1271, 34.3243, 8.5224)
Luminance	0.3433 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3FB531 #A731B5

analogous

#81B531 #3FB531 #31B565

triadic

#3FB531 #313FB5 #B5313F

tetradic

#3FB531 #3181B5 #A731B5 #B56531

square

#3FB531 #3181B5 #A731B5 #B56531

split-complementary

#3FB531 #6531B5 #B53181

monochromatic

#1D5517 #2E8524 #3FB531 #60D053 #8DDD83

Accessibility & contrast

On white

2.67

#3FB531 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.87

#3FB531 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #3FB531

7.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3FB531	#FFFFFF	#000000	##000000
##3FB531	1.00	2.67	7.87	7.87
#FFFFFF	2.67	1.00	21.00	21.00
#000000	7.87	21.00	1.00	1.00
##000000	7.87	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B9A419

Deuteranopia (green-blind)

#AB9B3F

Tritanopia (blue-blind)

#28AF9B

Achromatopsia (no color)

#9E9E9E

Design tokens & code

CSS

--color: #3fb531;
/* rgb */ color: rgb(63, 181, 49);
/* oklch */ color: oklch(68.1% 0.199 141.6);

Tailwind

colors: {
  custom: {
    50: '#83cc71',
    500: '#3fb531',
    950: '#000000',
  },
}

SCSS

$custom: #3fb531;
$custom-light: #83cc71;
$custom-dark: #000000;

JSON

{
  "hex": "#3fb531",
  "rgb": {
    "r": 63,
    "g": 181,
    "b": 49
  },
  "hsl": {
    "h": 113.636,
    "s": 57.391,
    "l": 45.098
  },
  "oklch": {
    "l": 0.68134,
    "c": 0.19869,
    "h": 141.6
  },
  "luminance": 0.34326
}

Semantic roles & 50–950 ramp

primary

#3FB531

secondary

#BF7BC7

accent

#47E1D0

background

#F8FCF7

surface

#F0F9ED

border

#CBD2C8

text

#0C1308

muted

#7D827B

Preview Lab

Preview with #3FB531

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

Preview Lab → · Contrast checker → · Palette generator →