#178E3B#178E3B

#178E3B is a mid, vivid green. Relative luminance 0.198; OKLCH L 56.7% C 0.157 H 147.8°. Best body text is #000000 at 4.97:1 contrast (WCAG AA passes).

Color values

HEX	#178E3B
RGB	rgb(23, 142, 59)
HSL	hsl(138, 72%, 32%)
HSV	hsv(138, 84%, 56%)
CMYK	cmyk(83.8%, 0%, 58.5%, 44.3%)
CIE-LAB	lab(51.66, -49.34, 35.05)
CIE-LCH	lch(51.66, 60.52, 144.62°)
OKLab	oklab(56.69% -0.1325 0.0834)
OKLCH	oklch(56.69% 0.157 147.8)
XYZ	xyz(10.8149, 19.8426, 7.3968)
Luminance	0.1984 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#178E3B #8E176A

analogous

#2F8E17 #178E3B #178E76

triadic

#178E3B #3B178E #8E3B17

tetradic

#178E3B #172F8E #8E176A #8E7617

square

#178E3B #172F8E #8E176A #8E7617

split-complementary

#178E3B #76178E #8E172F

monochromatic

#06250F #0E5925 #178E3B #20C351 #3FE070

Accessibility & contrast

On white

4.23

#178E3B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.97

#178E3B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #178E3B

4.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##178E3B	#FFFFFF	#000000	##000000
##178E3B	1.00	4.23	4.97	4.97
#FFFFFF	4.23	1.00	21.00	21.00
#000000	4.97	21.00	1.00	1.00
##000000	4.97	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#908133

Deuteranopia (green-blind)

#837842

Tritanopia (blue-blind)

#008B7C

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #178e3b;
/* rgb */ color: rgb(23, 142, 59);
/* oklch */ color: oklch(56.7% 0.157 147.8);

Tailwind

colors: {
  custom: {
    50: '#6cb073',
    500: '#178e3b',
    950: '#000000',
  },
}

SCSS

$custom: #178e3b;
$custom-light: #6cb073;
$custom-dark: #000000;

JSON

{
  "hex": "#178e3b",
  "rgb": {
    "r": 23,
    "g": 142,
    "b": 59
  },
  "hsl": {
    "h": 138.151,
    "s": 72.121,
    "l": 32.353
  },
  "oklch": {
    "l": 0.56687,
    "c": 0.15657,
    "h": 147.8
  },
  "luminance": 0.19844
}

Semantic roles & 50–950 ramp

primary

#178E3B

secondary

#C0409A

accent

#39B8EF

background

#F7FBF7

surface

#EDF6ED

border

#C8D0C8

text

#081108

muted

#7B807B

Preview Lab

Preview with #178E3B

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

Preview Lab → · Contrast checker → · Palette generator →