#1B9E23#1B9E23

#1B9E23 is a mid, vivid green. Relative luminance 0.248; OKLCH L 61.0% C 0.191 H 143.3°. Best body text is #000000 at 5.96:1 contrast (WCAG AA passes).

Color values

HEX	#1B9E23
RGB	rgb(27, 158, 35)
HSL	hsl(124, 71%, 36%)
HSV	hsv(124, 83%, 62%)
CMYK	cmyk(82.9%, 0%, 77.8%, 38%)
CIE-LAB	lab(56.89, -56.67, 50.88)
CIE-LCH	lch(56.89, 76.16, 138.09°)
OKLab	oklab(60.98% -0.1535 0.1142)
OKLCH	oklch(60.98% 0.191 143.3)
XYZ	xyz(12.9814, 24.8065, 5.6937)
Luminance	0.2481 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B9E23 #9E1B96

analogous

#559E1B #1B9E23 #1B9E65

triadic

#1B9E23 #231B9E #9E231B

tetradic

#1B9E23 #1B559E #9E1B96 #9E651B

square

#1B9E23 #1B559E #9E1B96 #9E651B

split-complementary

#1B9E23 #651B9E #9E1B55

monochromatic

#09350C #126A17 #1B9E23 #24D22F #52E15B

Accessibility & contrast

On white

3.52

#1B9E23 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.96

#1B9E23 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1B9E23

5.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B9E23	#FFFFFF	#000000	##000000
##1B9E23	1.00	3.52	5.96	5.96
#FFFFFF	3.52	1.00	21.00	21.00
#000000	5.96	21.00	1.00	1.00
##000000	5.96	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A18E04

Deuteranopia (green-blind)

#948531

Tritanopia (blue-blind)

#009987

Achromatopsia (no color)

#888888

Design tokens & code

CSS

--color: #1b9e23;
/* rgb */ color: rgb(27, 158, 35);
/* oklch */ color: oklch(61.0% 0.191 143.3);

Tailwind

colors: {
  custom: {
    50: '#72bc67',
    500: '#1b9e23',
    950: '#000000',
  },
}

SCSS

$custom: #1b9e23;
$custom-light: #72bc67;
$custom-dark: #000000;

JSON

{
  "hex": "#1b9e23",
  "rgb": {
    "r": 27,
    "g": 158,
    "b": 35
  },
  "hsl": {
    "h": 123.664,
    "s": 70.811,
    "l": 36.275
  },
  "oklch": {
    "l": 0.60982,
    "c": 0.19133,
    "h": 143.3
  },
  "luminance": 0.24808
}

Semantic roles & 50–950 ramp

primary

#1B9E23

secondary

#C451BD

accent

#3AE3EE

background

#F7FBF6

surface

#EEF6EB

border

#C9D0C6

text

#091206

muted

#7B817A

Preview Lab

Preview with #1B9E23

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

Preview Lab → · Contrast checker → · Palette generator →