#178B5E#178B5E

#178B5E is a mid, moderate teal. Relative luminance 0.195; OKLCH L 56.5% C 0.120 H 160.8°. Best body text is #000000 at 4.89:1 contrast (WCAG AA passes).

Color values

HEX	#178B5E
RGB	rgb(23, 139, 94)
HSL	hsl(157, 72%, 32%)
HSV	hsv(157, 83%, 55%)
CMYK	cmyk(83.5%, 0%, 32.4%, 45.5%)
CIE-LAB	lab(51.21, -41.67, 15.59)
CIE-LCH	lch(51.21, 44.49, 159.48°)
OKLab	oklab(56.5% -0.1132 0.0395)
OKLCH	oklch(56.5% 0.12 160.8)
XYZ	xyz(11.6051, 19.4541, 13.7309)
Luminance	0.1946 (WCAG relative)
Temperature	neutral
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#178B5E #8B1744

analogous

#178B24 #178B5E #177E8B

triadic

#178B5E #5E178B #8B5E17

tetradic

#178B5E #24178B #8B1744 #7E8B17

square

#178B5E #24178B #8B1744 #7E8B17

split-complementary

#178B5E #8B177E #8B2417

monochromatic

#062217 #0E563A #178B5E #20C082 #3DDFA0

Accessibility & contrast

On white

4.29

#178B5E on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.89

#178B5E on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #178B5E

4.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##178B5E	#FFFFFF	#000000	##000000
##178B5E	1.00	4.29	4.89	4.89
#FFFFFF	4.29	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)

#89805B

Deuteranopia (green-blind)

#7C7661

Tritanopia (blue-blind)

#008B7F

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #178b5e;
/* rgb */ color: rgb(23, 139, 94);
/* oklch */ color: oklch(56.5% 0.120 160.8);

Tailwind

colors: {
  custom: {
    50: '#6aae8c',
    500: '#178b5e',
    950: '#000000',
  },
}

SCSS

$custom: #178b5e;
$custom-light: #6aae8c;
$custom-dark: #000000;

JSON

{
  "hex": "#178b5e",
  "rgb": {
    "r": 23,
    "g": 139,
    "b": 94
  },
  "hsl": {
    "h": 156.724,
    "s": 71.605,
    "l": 31.765
  },
  "oklch": {
    "l": 0.56503,
    "c": 0.11994,
    "h": 160.8
  },
  "luminance": 0.19456
}

Semantic roles & 50–950 ramp

primary

#178B5E

secondary

#BF3F71

accent

#3980EE

background

#F6FAF8

surface

#ECF4F0

border

#C7CECB

text

#08100C

muted

#7A7F7D

Preview Lab

Preview with #178B5E

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

Preview Lab → · Contrast checker → · Palette generator →