#1B9F23#1B9F23

#1B9F23 is a mid, vivid green. Relative luminance 0.252; OKLCH L 61.3% C 0.192 H 143.3°. Best body text is #000000 at 6.03:1 contrast (WCAG AA passes).

Color values

HEX	#1B9F23
RGB	rgb(27, 159, 35)
HSL	hsl(124, 71%, 36%)
HSV	hsv(124, 83%, 62%)
CMYK	cmyk(83%, 0%, 78%, 37.6%)
CIE-LAB	lab(57.22, -56.99, 51.20)
CIE-LCH	lch(57.22, 76.61, 138.06°)
OKLab	oklab(61.26% -0.1543 0.1149)
OKLCH	oklch(61.26% 0.192 143.3)
XYZ	xyz(13.1526, 25.1490, 5.7508)
Luminance	0.2515 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B9F23 #9F1B97

analogous

#559F1B #1B9F23 #1B9F65

triadic

#1B9F23 #231B9F #9F231B

tetradic

#1B9F23 #1B559F #9F1B97 #9F651B

square

#1B9F23 #1B559F #9F1B97 #9F651B

split-complementary

#1B9F23 #651B9F #9F1B55

monochromatic

#09360C #126B17 #1B9F23 #24D32F #53E25B

Accessibility & contrast

On white

3.48

#1B9F23 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.03

#1B9F23 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1B9F23

6.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B9F23	#FFFFFF	#000000	##000000
##1B9F23	1.00	3.48	6.03	6.03
#FFFFFF	3.48	1.00	21.00	21.00
#000000	6.03	21.00	1.00	1.00
##000000	6.03	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A28F03

Deuteranopia (green-blind)

#958631

Tritanopia (blue-blind)

#009A88

Achromatopsia (no color)

#898989

Design tokens & code

CSS

--color: #1b9f23;
/* rgb */ color: rgb(27, 159, 35);
/* oklch */ color: oklch(61.3% 0.192 143.3);

Tailwind

colors: {
  custom: {
    50: '#72bd68',
    500: '#1b9f23',
    950: '#000000',
  },
}

SCSS

$custom: #1b9f23;
$custom-light: #72bd68;
$custom-dark: #000000;

JSON

{
  "hex": "#1b9f23",
  "rgb": {
    "r": 27,
    "g": 159,
    "b": 35
  },
  "hsl": {
    "h": 123.636,
    "s": 70.968,
    "l": 36.471
  },
  "oklch": {
    "l": 0.6126,
    "c": 0.19241,
    "h": 143.3
  },
  "luminance": 0.25151
}

Semantic roles & 50–950 ramp

primary

#1B9F23

secondary

#C551BE

accent

#3AE3EE

background

#F7FBF6

surface

#EEF7EB

border

#C9D0C6

text

#0A1207

muted

#7C817A

Preview Lab

Preview with #1B9F23

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

Preview Lab → · Contrast checker → · Palette generator →