#178B5D#178B5D

#178B5D is a mid, vivid teal. Relative luminance 0.194; OKLCH L 56.5% C 0.121 H 160.3°. Best body text is #000000 at 4.89:1 contrast (WCAG AA passes).

Color values

HEX	#178B5D
RGB	rgb(23, 139, 93)
HSL	hsl(156, 72%, 32%)
HSV	hsv(156, 83%, 55%)
CMYK	cmyk(83.5%, 0%, 33.1%, 45.5%)
CIE-LAB	lab(51.19, -41.90, 16.13)
CIE-LCH	lch(51.19, 44.89, 158.94°)
OKLab	oklab(56.48% -0.1137 0.0408)
OKLCH	oklch(56.48% 0.121 160.3)
XYZ	xyz(11.5605, 19.4363, 13.4961)
Luminance	0.1944 (WCAG relative)
Temperature	neutral
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#178B5D #8B1745

analogous

#178B23 #178B5D #177F8B

triadic

#178B5D #5D178B #8B5D17

tetradic

#178B5D #23178B #8B1745 #7F8B17

square

#178B5D #23178B #8B1745 #7F8B17

split-complementary

#178B5D #8B177F #8B2317

monochromatic

#062217 #0E563A #178B5D #20C080 #3DDF9F

Accessibility & contrast

On white

4.30

#178B5D on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.89

#178B5D on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #178B5D

4.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##178B5D	#FFFFFF	#000000	##000000
##178B5D	1.00	4.30	4.89	4.89
#FFFFFF	4.30	1.00	21.00	21.00
#000000	4.89	21.00	1.00	1.00
##000000	4.89	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#89805A

Deuteranopia (green-blind)

#7C7660

Tritanopia (blue-blind)

#008A7F

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #178b5d;
/* rgb */ color: rgb(23, 139, 93);
/* oklch */ color: oklch(56.5% 0.121 160.3);

Tailwind

colors: {
  custom: {
    50: '#6aae8b',
    500: '#178b5d',
    950: '#000000',
  },
}

SCSS

$custom: #178b5d;
$custom-light: #6aae8b;
$custom-dark: #000000;

JSON

{
  "hex": "#178b5d",
  "rgb": {
    "r": 23,
    "g": 139,
    "b": 93
  },
  "hsl": {
    "h": 156.207,
    "s": 71.605,
    "l": 31.765
  },
  "oklch": {
    "l": 0.5648,
    "c": 0.12085,
    "h": 160.3
  },
  "luminance": 0.19438
}

Semantic roles & 50–950 ramp

primary

#178B5D

secondary

#BF3F72

accent

#3981EE

background

#F6FAF8

surface

#ECF4F0

border

#C7CECB

text

#08100C

muted

#7A7F7D

Preview Lab

Preview with #178B5D

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

Preview Lab → · Contrast checker → · Palette generator →