#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
RGB	rgb(31, 178, 63)
HSL	hsl(133, 70%, 41%)
HSV	hsv(133, 83%, 70%)
CMYK	cmyk(82.6%, 0%, 64.6%, 30.2%)
CIE-LAB	lab(63.74, -59.92, 47.09)
CIE-LCH	lch(63.74, 76.21, 141.84°)
OKLab	oklab(66.77% -0.1613 0.1096)
OKLCH	oklch(66.77% 0.195 145.8)
XYZ	xyz(17.3814, 32.4888, 10.0566)
Luminance	0.3249 (WCAG relative)
Temperature	neutral
Family	green

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
##1FB23F	1.00	2.80	7.50	7.50
#FFFFFF	2.80	1.00	21.00	21.00
#000000	7.50	21.00	1.00	1.00
##000000	7.50	21.00	1.00	1.00

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 →