#178A51#178A51

#178A51 is a mid, vivid teal. Relative luminance 0.190; OKLCH L 55.9% C 0.131 H 155.1°. Best body text is #000000 at 4.79:1 contrast (WCAG AA passes).

Color values

HEX	#178A51
RGB	rgb(23, 138, 81)
HSL	hsl(150, 71%, 32%)
HSV	hsv(150, 83%, 54%)
CMYK	cmyk(83.3%, 0%, 41.3%, 45.9%)
CIE-LAB	lab(50.63, -44.09, 22.11)
CIE-LCH	lch(50.63, 49.32, 153.36°)
OKLab	oklab(55.94% -0.1187 0.0551)
OKLCH	oklch(55.94% 0.131 155.1)
XYZ	xyz(10.9260, 18.9518, 10.8652)
Luminance	0.1895 (WCAG relative)
Temperature	neutral
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#178A51 #8A1750

analogous

#178A18 #178A51 #178A8A

triadic

#178A51 #51178A #8A5117

tetradic

#178A51 #18178A #8A1750 #8A8A17

square

#178A51 #18178A #8A1750 #8A8A17

split-complementary

#178A51 #8A178A #8A1817

monochromatic

#062113 #0E5632 #178A51 #20BE70 #3DDF8E

Accessibility & contrast

On white

4.38

#178A51 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.79

#178A51 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #178A51

4.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##178A51	#FFFFFF	#000000	##000000
##178A51	1.00	4.38	4.79	4.79
#FFFFFF	4.38	1.00	21.00	21.00
#000000	4.79	21.00	1.00	1.00
##000000	4.79	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#897E4D

Deuteranopia (green-blind)

#7C7555

Tritanopia (blue-blind)

#00887C

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #178a51;
/* rgb */ color: rgb(23, 138, 81);
/* oklch */ color: oklch(55.9% 0.131 155.1);

Tailwind

colors: {
  custom: {
    50: '#6aad82',
    500: '#178a51',
    950: '#000000',
  },
}

SCSS

$custom: #178a51;
$custom-light: #6aad82;
$custom-dark: #000000;

JSON

{
  "hex": "#178a51",
  "rgb": {
    "r": 23,
    "g": 138,
    "b": 81
  },
  "hsl": {
    "h": 150.261,
    "s": 71.429,
    "l": 31.569
  },
  "oklch": {
    "l": 0.5594,
    "c": 0.13085,
    "h": 155.1
  },
  "luminance": 0.18953
}

Semantic roles & 50–950 ramp

primary

#178A51

secondary

#BE3F7E

accent

#3A93EE

background

#F6FAF8

surface

#ECF4EF

border

#C7CECA

text

#08100A

muted

#7A7F7C

Preview Lab

Preview with #178A51

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

Preview Lab → · Contrast checker → · Palette generator →