#178A57#178A57

#178A57 is a mid, vivid teal. Relative luminance 0.190; OKLCH L 56.1% C 0.125 H 157.7°. Best body text is #000000 at 4.81:1 contrast (WCAG AA passes).

Color values

HEX	#178A57
RGB	rgb(23, 138, 87)
HSL	hsl(153, 71%, 32%)
HSV	hsv(153, 83%, 54%)
CMYK	cmyk(83.3%, 0%, 37%, 45.9%)
CIE-LAB	lab(50.74, -42.83, 18.91)
CIE-LCH	lch(50.74, 46.82, 156.18°)
OKLab	oklab(56.07% -0.1157 0.0475)
OKLCH	oklch(56.07% 0.125 157.7)
XYZ	xyz(11.1610, 19.0458, 12.1030)
Luminance	0.1905 (WCAG relative)
Temperature	neutral
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#178A57 #8A174A

analogous

#178A1D #178A57 #17848A

triadic

#178A57 #57178A #8A5717

tetradic

#178A57 #1D178A #8A174A #848A17

square

#178A57 #1D178A #8A174A #848A17

split-complementary

#178A57 #8A1784 #8A1D17

monochromatic

#062115 #0E5636 #178A57 #20BE78 #3DDF97

Accessibility & contrast

On white

4.37

#178A57 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.81

#178A57 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #178A57

4.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##178A57	#FFFFFF	#000000	##000000
##178A57	1.00	4.37	4.81	4.81
#FFFFFF	4.37	1.00	21.00	21.00
#000000	4.81	21.00	1.00	1.00
##000000	4.81	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#897E54

Deuteranopia (green-blind)

#7C755A

Tritanopia (blue-blind)

#00897D

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #178a57;
/* rgb */ color: rgb(23, 138, 87);
/* oklch */ color: oklch(56.1% 0.125 157.7);

Tailwind

colors: {
  custom: {
    50: '#6aad86',
    500: '#178a57',
    950: '#000000',
  },
}

SCSS

$custom: #178a57;
$custom-light: #6aad86;
$custom-dark: #000000;

JSON

{
  "hex": "#178a57",
  "rgb": {
    "r": 23,
    "g": 138,
    "b": 87
  },
  "hsl": {
    "h": 153.391,
    "s": 71.429,
    "l": 31.569
  },
  "oklch": {
    "l": 0.56067,
    "c": 0.12511,
    "h": 157.7
  },
  "luminance": 0.19047
}

Semantic roles & 50–950 ramp

primary

#178A57

secondary

#BE3F77

accent

#3A8AEE

background

#F6FAF8

surface

#ECF4EF

border

#C7CECA

text

#08100B

muted

#7A7F7C

Preview Lab

Preview with #178A57

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

Preview Lab → · Contrast checker → · Palette generator →