#178D3B#178D3B

#178D3B is a mid, vivid green. Relative luminance 0.195; OKLCH L 56.4% C 0.155 H 147.9°. Best body text is #000000 at 4.91:1 contrast (WCAG AA passes).

Color values

HEX	#178D3B
RGB	rgb(23, 141, 59)
HSL	hsl(138, 72%, 32%)
HSV	hsv(138, 84%, 55%)
CMYK	cmyk(83.7%, 0%, 58.2%, 44.7%)
CIE-LAB	lab(51.32, -49.00, 34.65)
CIE-LCH	lch(51.32, 60.01, 144.74°)
OKLab	oklab(56.41% -0.1316 0.0825)
OKLCH	oklch(56.41% 0.155 147.9)
XYZ	xyz(10.6668, 19.5464, 7.3475)
Luminance	0.1955 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#178D3B #8D1769

analogous

#2E8D17 #178D3B #178D76

triadic

#178D3B #3B178D #8D3B17

tetradic

#178D3B #172E8D #8D1769 #8D7617

square

#178D3B #172E8D #8D1769 #8D7617

split-complementary

#178D3B #76178D #8D172E

monochromatic

#06240F #0E5825 #178D3B #20C251 #3FE070

Accessibility & contrast

On white

4.28

#178D3B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.91

#178D3B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #178D3B

4.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##178D3B	#FFFFFF	#000000	##000000
##178D3B	1.00	4.28	4.91	4.91
#FFFFFF	4.28	1.00	21.00	21.00
#000000	4.91	21.00	1.00	1.00
##000000	4.91	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8F8033

Deuteranopia (green-blind)

#827742

Tritanopia (blue-blind)

#008A7B

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #178d3b;
/* rgb */ color: rgb(23, 141, 59);
/* oklch */ color: oklch(56.4% 0.155 147.9);

Tailwind

colors: {
  custom: {
    50: '#6baf73',
    500: '#178d3b',
    950: '#000000',
  },
}

SCSS

$custom: #178d3b;
$custom-light: #6baf73;
$custom-dark: #000000;

JSON

{
  "hex": "#178d3b",
  "rgb": {
    "r": 23,
    "g": 141,
    "b": 59
  },
  "hsl": {
    "h": 138.305,
    "s": 71.951,
    "l": 32.157
  },
  "oklch": {
    "l": 0.56406,
    "c": 0.15531,
    "h": 147.9
  },
  "luminance": 0.19548
}

Semantic roles & 50–950 ramp

primary

#178D3B

secondary

#C04099

accent

#39B7EF

background

#F7FAF7

surface

#EDF5ED

border

#C8CFC8

text

#081108

muted

#7B807B

Preview Lab

Preview with #178D3B

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

Preview Lab → · Contrast checker → · Palette generator →