#178A5B#178A5B

#178A5B is a mid, vivid teal. Relative luminance 0.191; OKLCH L 56.2% C 0.121 H 159.6°. Best body text is #000000 at 4.82:1 contrast (WCAG AA passes).

Color values

HEX	#178A5B
RGB	rgb(23, 138, 91)
HSL	hsl(155, 71%, 32%)
HSV	hsv(155, 83%, 54%)
CMYK	cmyk(83.3%, 0%, 34.1%, 45.9%)
CIE-LAB	lab(50.82, -41.95, 16.75)
CIE-LCH	lch(50.82, 45.17, 158.23°)
OKLab	oklab(56.16% -0.1137 0.0423)
OKLCH	oklch(56.16% 0.121 159.6)
XYZ	xyz(11.3289, 19.1130, 12.9876)
Luminance	0.1911 (WCAG relative)
Temperature	neutral
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#178A5B #8A1746

analogous

#178A21 #178A5B #17808A

triadic

#178A5B #5B178A #8A5B17

tetradic

#178A5B #21178A #8A1746 #808A17

square

#178A5B #21178A #8A1746 #808A17

split-complementary

#178A5B #8A1780 #8A2117

monochromatic

#062116 #0E5638 #178A5B #20BE7E #3DDF9C

Accessibility & contrast

On white

4.35

#178A5B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.82

#178A5B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #178A5B

4.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##178A5B	#FFFFFF	#000000	##000000
##178A5B	1.00	4.35	4.82	4.82
#FFFFFF	4.35	1.00	21.00	21.00
#000000	4.82	21.00	1.00	1.00
##000000	4.82	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#887F58

Deuteranopia (green-blind)

#7B755E

Tritanopia (blue-blind)

#00897E

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #178a5b;
/* rgb */ color: rgb(23, 138, 91);
/* oklch */ color: oklch(56.2% 0.121 159.6);

Tailwind

colors: {
  custom: {
    50: '#6aad89',
    500: '#178a5b',
    950: '#000000',
  },
}

SCSS

$custom: #178a5b;
$custom-light: #6aad89;
$custom-dark: #000000;

JSON

{
  "hex": "#178a5b",
  "rgb": {
    "r": 23,
    "g": 138,
    "b": 91
  },
  "hsl": {
    "h": 155.478,
    "s": 71.429,
    "l": 31.569
  },
  "oklch": {
    "l": 0.56158,
    "c": 0.12136,
    "h": 159.6
  },
  "luminance": 0.19114
}

Semantic roles & 50–950 ramp

primary

#178A5B

secondary

#BE3F73

accent

#3A83EE

background

#F6FAF8

surface

#ECF4F0

border

#C7CECB

text

#08100B

muted

#7A7F7C

Preview Lab

Preview with #178A5B

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

Preview Lab → · Contrast checker → · Palette generator →