#178A23#178A23

#178A23 is a mid, vivid green. Relative luminance 0.185; OKLCH L 55.3% C 0.170 H 143.9°. Best body text is #000000 at 4.70:1 contrast (WCAG AA passes).

Color values

HEX	#178A23
RGB	rgb(23, 138, 35)
HSL	hsl(126, 71%, 32%)
HSV	hsv(126, 83%, 54%)
CMYK	cmyk(83.3%, 0%, 74.6%, 45.9%)
CIE-LAB	lab(50.07, -50.78, 44.04)
CIE-LCH	lch(50.07, 67.22, 139.06°)
OKLab	oklab(55.3% -0.1373 0.1)
OKLCH	oklch(55.3% 0.17 143.9)
XYZ	xyz(9.7445, 18.4793, 4.6431)
Luminance	0.1848 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#178A23 #8A177E

analogous

#458A17 #178A23 #178A5D

triadic

#178A23 #23178A #8A2317

tetradic

#178A23 #17458A #8A177E #8A5D17

square

#178A23 #17458A #8A177E #8A5D17

split-complementary

#178A23 #5D178A #8A1745

monochromatic

#062108 #0E5616 #178A23 #20BE30 #3DDF4E

Accessibility & contrast

On white

4.47

#178A23 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.70

#178A23 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #178A23

4.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##178A23	#FFFFFF	#000000	##000000
##178A23	1.00	4.47	4.70	4.70
#FFFFFF	4.47	1.00	21.00	21.00
#000000	4.70	21.00	1.00	1.00
##000000	4.70	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8D7C11

Deuteranopia (green-blind)

#81742E

Tritanopia (blue-blind)

#008676

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #178a23;
/* rgb */ color: rgb(23, 138, 35);
/* oklch */ color: oklch(55.3% 0.170 143.9);

Tailwind

colors: {
  custom: {
    50: '#6cad65',
    500: '#178a23',
    950: '#000000',
  },
}

SCSS

$custom: #178a23;
$custom-light: #6cad65;
$custom-dark: #000000;

JSON

{
  "hex": "#178a23",
  "rgb": {
    "r": 23,
    "g": 138,
    "b": 35
  },
  "hsl": {
    "h": 126.261,
    "s": 71.429,
    "l": 31.569
  },
  "oklch": {
    "l": 0.55296,
    "c": 0.16985,
    "h": 143.9
  },
  "luminance": 0.1848
}

Semantic roles & 50–950 ramp

primary

#178A23

secondary

#BE3FB0

accent

#3ADBEE

background

#F7FAF6

surface

#EDF4EB

border

#C8CEC6

text

#081006

muted

#7B7F7A

Preview Lab

Preview with #178A23

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

Preview Lab → · Contrast checker → · Palette generator →