#178C51#178C51

#178C51 is a mid, vivid green. Relative luminance 0.195; OKLCH L 56.5% C 0.134 H 154.7°. Best body text is #000000 at 4.91:1 contrast (WCAG AA passes).

Color values

HEX	#178C51
RGB	rgb(23, 140, 81)
HSL	hsl(150, 72%, 32%)
HSV	hsv(150, 84%, 55%)
CMYK	cmyk(83.6%, 0%, 42.1%, 45.1%)
CIE-LAB	lab(51.30, -44.85, 23.00)
CIE-LCH	lch(51.30, 50.41, 152.85°)
OKLab	oklab(56.5% -0.1207 0.0571)
OKLCH	oklch(56.5% 0.134 154.7)
XYZ	xyz(11.2155, 19.5310, 10.9617)
Luminance	0.1953 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#178C51 #8C1752

analogous

#178C17 #178C51 #178C8C

triadic

#178C51 #51178C #8C5117

tetradic

#178C51 #17178C #8C1752 #8C8C17

square

#178C51 #17178C #8C1752 #8C8C17

split-complementary

#178C51 #8C178C #8C1717

monochromatic

#062314 #0E5733 #178C51 #20C16F #3EDF8E

Accessibility & contrast

On white

4.28

#178C51 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.91

#178C51 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #178C51

4.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##178C51	#FFFFFF	#000000	##000000
##178C51	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)

#8C804D

Deuteranopia (green-blind)

#7E7655

Tritanopia (blue-blind)

#008A7D

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #178c51;
/* rgb */ color: rgb(23, 140, 81);
/* oklch */ color: oklch(56.5% 0.134 154.7);

Tailwind

colors: {
  custom: {
    50: '#6baf82',
    500: '#178c51',
    950: '#000000',
  },
}

SCSS

$custom: #178c51;
$custom-light: #6baf82;
$custom-dark: #000000;

JSON

{
  "hex": "#178c51",
  "rgb": {
    "r": 23,
    "g": 140,
    "b": 81
  },
  "hsl": {
    "h": 149.744,
    "s": 71.779,
    "l": 31.961
  },
  "oklch": {
    "l": 0.56496,
    "c": 0.13353,
    "h": 154.7
  },
  "luminance": 0.19532
}

Semantic roles & 50–950 ramp

primary

#178C51

secondary

#BF3F80

accent

#3995EF

background

#F6FAF8

surface

#ECF4EF

border

#C7CECA

text

#08100A

muted

#7A7F7C

Preview Lab

Preview with #178C51

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

Preview Lab → · Contrast checker → · Palette generator →