#1FB43F#1FB43F

#1FB43F is a light, vivid green. Relative luminance 0.333; OKLCH L 67.3% C 0.197 H 145.7°. Best body text is #000000 at 7.66:1 contrast (WCAG AA passes).

Color values

HEX	#1FB43F
RGB	rgb(31, 180, 63)
HSL	hsl(133, 71%, 41%)
HSV	hsv(133, 83%, 71%)
CMYK	cmyk(82.8%, 0%, 65%, 29.4%)
CIE-LAB	lab(64.40, -60.56, 47.81)
CIE-LCH	lch(64.40, 77.16, 141.71°)
OKLab	oklab(67.31% -0.1631 0.1112)
OKLCH	oklch(67.31% 0.197 145.7)
XYZ	xyz(17.7822, 33.2905, 10.1902)
Luminance	0.3329 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1FB43F #B41F94

analogous

#4AB41F #1FB43F #1FB48A

triadic

#1FB43F #3F1FB4 #B43F1F

tetradic

#1FB43F #1F4AB4 #B41F94 #B48A1F

square

#1FB43F #1F4AB4 #B41F94 #B48A1F

split-complementary

#1FB43F #8A1FB4 #B41F4A

monochromatic

#0D4C1A #16802D #1FB43F #34DC58 #68E583

Accessibility & contrast

On white

2.74

#1FB43F on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.66

#1FB43F on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #1FB43F

7.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1FB43F	#FFFFFF	#000000	##000000
##1FB43F	1.00	2.74	7.66	7.66
#FFFFFF	2.74	1.00	21.00	21.00
#000000	7.66	21.00	1.00	1.00
##000000	7.66	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B7A331

Deuteranopia (green-blind)

#A7984A

Tritanopia (blue-blind)

#00AF9C

Achromatopsia (no color)

#9C9C9C

Design tokens & code

CSS

--color: #1fb43f;
/* rgb */ color: rgb(31, 180, 63);
/* oklch */ color: oklch(67.3% 0.197 145.7);

Tailwind

colors: {
  custom: {
    50: '#77cc79',
    500: '#1fb43f',
    950: '#000000',
  },
}

SCSS

$custom: #1fb43f;
$custom-light: #77cc79;
$custom-dark: #000000;

JSON

{
  "hex": "#1fb43f",
  "rgb": {
    "r": 31,
    "g": 180,
    "b": 63
  },
  "hsl": {
    "h": 132.886,
    "s": 70.616,
    "l": 41.373
  },
  "oklch": {
    "l": 0.67311,
    "c": 0.19736,
    "h": 145.7
  },
  "luminance": 0.33293
}

Semantic roles & 50–950 ramp

primary

#1FB43F

secondary

#CB64B5

accent

#3AC7ED

background

#F8FCF7

surface

#EFF9EE

border

#CAD2C9

text

#0B1309

muted

#7C827B

Preview Lab

Preview with #1FB43F

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

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