#178F1B#178F1B

#178F1B is a mid, vivid green. Relative luminance 0.199; OKLCH L 56.7% C 0.180 H 143.0°. Best body text is #000000 at 4.98:1 contrast (WCAG AA passes).

Color values

HEX	#178F1B
RGB	rgb(23, 143, 27)
HSL	hsl(122, 72%, 33%)
HSV	hsv(122, 84%, 56%)
CMYK	cmyk(83.9%, 0%, 81.1%, 43.9%)
CIE-LAB	lab(51.73, -53.00, 48.50)
CIE-LCH	lch(51.73, 71.84, 137.54°)
OKLab	oklab(56.66% -0.1437 0.1082)
OKLCH	oklch(56.66% 0.18 143)
XYZ	xyz(10.3730, 19.9049, 4.3320)
Luminance	0.1991 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#178F1B #8F178B

analogous

#4F8F17 #178F1B #178F57

triadic

#178F1B #1B178F #8F1B17

tetradic

#178F1B #174F8F #8F178B #8F5717

square

#178F1B #174F8F #8F178B #8F5717

split-complementary

#178F1B #57178F #8F174F

monochromatic

#062607 #0F5A11 #178F1B #1FC425 #40E045

Accessibility & contrast

On white

4.22

#178F1B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.98

#178F1B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #178F1B

4.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##178F1B	#FFFFFF	#000000	##000000
##178F1B	1.00	4.22	4.98	4.98
#FFFFFF	4.22	1.00	21.00	21.00
#000000	4.98	21.00	1.00	1.00
##000000	4.98	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#928100

Deuteranopia (green-blind)

#867829

Tritanopia (blue-blind)

#008B7A

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #178f1b;
/* rgb */ color: rgb(23, 143, 27);
/* oklch */ color: oklch(56.7% 0.180 143.0);

Tailwind

colors: {
  custom: {
    50: '#6eb162',
    500: '#178f1b',
    950: '#000000',
  },
}

SCSS

$custom: #178f1b;
$custom-light: #6eb162;
$custom-dark: #000000;

JSON

{
  "hex": "#178f1b",
  "rgb": {
    "r": 23,
    "g": 143,
    "b": 27
  },
  "hsl": {
    "h": 122,
    "s": 72.289,
    "l": 32.549
  },
  "oklch": {
    "l": 0.5666,
    "c": 0.17985,
    "h": 143
  },
  "luminance": 0.19906
}

Semantic roles & 50–950 ramp

primary

#178F1B

secondary

#C141BC

accent

#39E9EF

background

#F7FBF6

surface

#EDF6EB

border

#C8D0C6

text

#091105

muted

#7B807A

Preview Lab

Preview with #178F1B

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

Preview Lab → · Contrast checker → · Palette generator →