#178B23#178B23

#178B23 is a mid, vivid green. Relative luminance 0.188; OKLCH L 55.6% C 0.171 H 143.9°. Best body text is #000000 at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#178B23
RGB	rgb(23, 139, 35)
HSL	hsl(126, 72%, 32%)
HSV	hsv(126, 83%, 55%)
CMYK	cmyk(83.5%, 0%, 74.8%, 45.5%)
CIE-LAB	lab(50.41, -51.10, 44.39)
CIE-LCH	lch(50.41, 67.69, 139.02°)
OKLab	oklab(55.58% -0.1382 0.1007)
OKLCH	oklch(55.58% 0.171 143.9)
XYZ	xyz(9.8887, 18.7675, 4.6911)
Luminance	0.1877 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#178B23 #8B177F

analogous

#458B17 #178B23 #178B5D

triadic

#178B23 #23178B #8B2317

tetradic

#178B23 #17458B #8B177F #8B5D17

square

#178B23 #17458B #8B177F #8B5D17

split-complementary

#178B23 #5D178B #8B1745

monochromatic

#062209 #0E5616 #178B23 #20C030 #3DDF4E

Accessibility & contrast

On white

4.42

#178B23 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.75

#178B23 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #178B23

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##178B23	#FFFFFF	#000000	##000000
##178B23	1.00	4.42	4.75	4.75
#FFFFFF	4.42	1.00	21.00	21.00
#000000	4.75	21.00	1.00	1.00
##000000	4.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8E7D10

Deuteranopia (green-blind)

#82752E

Tritanopia (blue-blind)

#008777

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #178b23;
/* rgb */ color: rgb(23, 139, 35);
/* oklch */ color: oklch(55.6% 0.171 143.9);

Tailwind

colors: {
  custom: {
    50: '#6cae65',
    500: '#178b23',
    950: '#000000',
  },
}

SCSS

$custom: #178b23;
$custom-light: #6cae65;
$custom-dark: #000000;

JSON

{
  "hex": "#178b23",
  "rgb": {
    "r": 23,
    "g": 139,
    "b": 35
  },
  "hsl": {
    "h": 126.207,
    "s": 71.605,
    "l": 31.765
  },
  "oklch": {
    "l": 0.5558,
    "c": 0.17099,
    "h": 143.9
  },
  "luminance": 0.18769
}

Semantic roles & 50–950 ramp

primary

#178B23

secondary

#BF3FB1

accent

#39DCEE

background

#F7FAF6

surface

#EDF4EB

border

#C8CEC6

text

#081006

muted

#7B7F7A

Preview Lab

Preview with #178B23

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

Preview Lab → · Contrast checker → · Palette generator →