#178F3B#178F3B

#178F3B is a mid, vivid green. Relative luminance 0.201; OKLCH L 57.0% C 0.158 H 147.7°. Best body text is #000000 at 5.03:1 contrast (WCAG AA passes).

Color values

HEX	#178F3B
RGB	rgb(23, 143, 59)
HSL	hsl(138, 72%, 33%)
HSV	hsv(138, 84%, 56%)
CMYK	cmyk(83.9%, 0%, 58.7%, 43.9%)
CIE-LAB	lab(52.00, -49.69, 35.45)
CIE-LCH	lch(52.00, 61.04, 144.50°)
OKLab	oklab(56.97% -0.1335 0.0843)
OKLCH	oklch(56.97% 0.158 147.7)
XYZ	xyz(10.9643, 20.1415, 7.4467)
Luminance	0.2014 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#178F3B #8F176B

analogous

#2F8F17 #178F3B #178F77

triadic

#178F3B #3B178F #8F3B17

tetradic

#178F3B #172F8F #8F176B #8F7717

square

#178F3B #172F8F #8F176B #8F7717

split-complementary

#178F3B #77178F #8F172F

monochromatic

#06260F #0F5A25 #178F3B #1FC451 #40E070

Accessibility & contrast

On white

4.18

#178F3B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.03

#178F3B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #178F3B

5.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##178F3B	#FFFFFF	#000000	##000000
##178F3B	1.00	4.18	5.03	5.03
#FFFFFF	4.18	1.00	21.00	21.00
#000000	5.03	21.00	1.00	1.00
##000000	5.03	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#918133

Deuteranopia (green-blind)

#847842

Tritanopia (blue-blind)

#008C7C

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #178f3b;
/* rgb */ color: rgb(23, 143, 59);
/* oklch */ color: oklch(57.0% 0.158 147.7);

Tailwind

colors: {
  custom: {
    50: '#6cb173',
    500: '#178f3b',
    950: '#000000',
  },
}

SCSS

$custom: #178f3b;
$custom-light: #6cb173;
$custom-dark: #000000;

JSON

{
  "hex": "#178f3b",
  "rgb": {
    "r": 23,
    "g": 143,
    "b": 59
  },
  "hsl": {
    "h": 138,
    "s": 72.289,
    "l": 32.549
  },
  "oklch": {
    "l": 0.56968,
    "c": 0.15783,
    "h": 147.7
  },
  "luminance": 0.20143
}

Semantic roles & 50–950 ramp

primary

#178F3B

secondary

#C1419A

accent

#39B8EF

background

#F7FBF7

surface

#EDF6ED

border

#C8D0C8

text

#081108

muted

#7B807B

Preview Lab

Preview with #178F3B

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

Preview Lab → · Contrast checker → · Palette generator →