#1FB43B#1FB43B

#1FB43B is a light, highly saturated green. Relative luminance 0.333; OKLCH L 67.3% C 0.200 H 145.2°. Best body text is #000000 at 7.65:1 contrast (WCAG AA passes).

Color values

HEX	#1FB43B
RGB	rgb(31, 180, 59)
HSL	hsl(131, 71%, 41%)
HSV	hsv(131, 83%, 71%)
CMYK	cmyk(82.8%, 0%, 67.2%, 29.4%)
CIE-LAB	lab(64.36, -60.99, 49.47)
CIE-LCH	lch(64.36, 78.53, 140.96°)
OKLab	oklab(67.27% -0.1644 0.1143)
OKLCH	oklch(67.27% 0.2 145.2)
XYZ	xyz(17.6745, 33.2474, 9.6227)
Luminance	0.3325 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1FB43B #B41F98

analogous

#4EB41F #1FB43B #1FB486

triadic

#1FB43B #3B1FB4 #B43B1F

tetradic

#1FB43B #1F4EB4 #B41F98 #B4861F

square

#1FB43B #1F4EB4 #B41F98 #B4861F

split-complementary

#1FB43B #861FB4 #B41F4E

monochromatic

#0D4C19 #16802A #1FB43B #34DC54 #68E580

Accessibility & contrast

On white

2.75

#1FB43B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.65

#1FB43B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #1FB43B

7.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1FB43B	#FFFFFF	#000000	##000000
##1FB43B	1.00	2.75	7.65	7.65
#FFFFFF	2.75	1.00	21.00	21.00
#000000	7.65	21.00	1.00	1.00
##000000	7.65	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B7A32B

Deuteranopia (green-blind)

#A79846

Tritanopia (blue-blind)

#00AF9B

Achromatopsia (no color)

#9C9C9C

Design tokens & code

CSS

--color: #1fb43b;
/* rgb */ color: rgb(31, 180, 59);
/* oklch */ color: oklch(67.3% 0.200 145.2);

Tailwind

colors: {
  custom: {
    50: '#78cc77',
    500: '#1fb43b',
    950: '#000000',
  },
}

SCSS

$custom: #1fb43b;
$custom-light: #78cc77;
$custom-dark: #000000;

JSON

{
  "hex": "#1fb43b",
  "rgb": {
    "r": 31,
    "g": 180,
    "b": 59
  },
  "hsl": {
    "h": 131.275,
    "s": 70.616,
    "l": 41.373
  },
  "oklch": {
    "l": 0.6727,
    "c": 0.20019,
    "h": 145.2
  },
  "luminance": 0.3325
}

Semantic roles & 50–950 ramp

primary

#1FB43B

secondary

#CB64B7

accent

#3ACCED

background

#F8FCF7

surface

#EFF9ED

border

#CAD2C8

text

#0B1309

muted

#7C827B

Preview Lab

Preview with #1FB43B

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

Preview Lab → · Contrast checker → · Palette generator →