#1FB23F#1FB23F

#1FB23F is a light, vivid green. Relative luminance 0.325; OKLCH L 66.8% C 0.195 H 145.8°. Best body text is #000000 at 7.50:1 contrast (WCAG AA passes).

Color values

HEX#1FB23F
RGBrgb(31, 178, 63)
HSLhsl(133, 70%, 41%)
HSVhsv(133, 83%, 70%)
CMYKcmyk(82.6%, 0%, 64.6%, 30.2%)
CIE-LABlab(63.74, -59.92, 47.09)
CIE-LCHlch(63.74, 76.21, 141.84°)
OKLaboklab(66.77% -0.1613 0.1096)
OKLCHoklch(66.77% 0.195 145.8)
XYZxyz(17.3814, 32.4888, 10.0566)
Luminance0.3249 (WCAG relative)
Temperatureneutral
Familygreen

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#1FB23F #B21F92
analogous
#48B21F #1FB23F #1FB288
triadic
#1FB23F #3F1FB2 #B23F1F
tetradic
#1FB23F #1F48B2 #B21F92 #B2881F
square
#1FB23F #1F48B2 #B21F92 #B2881F
split-complementary
#1FB23F #881FB2 #B21F48
monochromatic
#0D4A1A #167E2D #1FB23F #33DB57 #67E582

Accessibility & contrast

On white

2.80
#1FB23F on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

7.50
#1FB23F on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #1FB23F
7.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##1FB23F#FFFFFF#000000##000000
##1FB23F1.002.807.507.50
#FFFFFF2.801.0021.0021.00
#0000007.5021.001.001.00
##0000007.5021.001.001.00

Color blindness preview

Protanopia (red-blind)
#B5A131
Deuteranopia (green-blind)
#A59649
Tritanopia (blue-blind)
#00AE9A
Achromatopsia (no color)
#9A9A9A

Design tokens & code

CSS
--color: #1fb23f;
/* rgb */ color: rgb(31, 178, 63);
/* oklch */ color: oklch(66.8% 0.195 145.8);
Tailwind
colors: {
  custom: {
    50: '#77ca79',
    500: '#1fb23f',
    950: '#000000',
  },
}
SCSS
$custom: #1fb23f;
$custom-light: #77ca79;
$custom-dark: #000000;
JSON
{
  "hex": "#1fb23f",
  "rgb": {
    "r": 31,
    "g": 178,
    "b": 63
  },
  "hsl": {
    "h": 133.061,
    "s": 70.335,
    "l": 40.98
  },
  "oklch": {
    "l": 0.6677,
    "c": 0.19505,
    "h": 145.8
  },
  "luminance": 0.32491
}

Semantic roles & 50–950 ramp

primary
#1FB23F
secondary
#CA63B3
accent
#3BC6ED
background
#F8FCF7
surface
#EFF9EE
border
#CAD2C9
text
#0A1309
muted
#7C827B

Preview Lab

Preview with #1FB23F

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

Preview Lab → · Contrast checker → · Palette generator →

#1FB23F Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva