#178F5B#178F5B

#178F5B is a mid, vivid teal. Relative luminance 0.206; OKLCH L 57.5% C 0.128 H 158.1°. Best body text is #000000 at 5.12:1 contrast (WCAG AA passes).

Color values

HEX	#178F5B
RGB	rgb(23, 143, 91)
HSL	hsl(154, 72%, 33%)
HSV	hsv(154, 84%, 56%)
CMYK	cmyk(83.9%, 0%, 36.4%, 43.9%)
CIE-LAB	lab(52.49, -43.94, 19.02)
CIE-LCH	lch(52.49, 47.87, 156.59°)
OKLab	oklab(57.53% -0.1188 0.0478)
OKLCH	oklch(57.53% 0.128 158.1)
XYZ	xyz(12.0629, 20.5809, 13.2322)
Luminance	0.2058 (WCAG relative)
Temperature	neutral
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#178F5B #8F174B

analogous

#178F1F #178F5B #17878F

triadic

#178F5B #5B178F #8F5B17

tetradic

#178F5B #1F178F #8F174B #878F17

square

#178F5B #1F178F #8F174B #878F17

split-complementary

#178F5B #8F1787 #8F1F17

monochromatic

#062618 #0F5A39 #178F5B #1FC47D #40E09B

Accessibility & contrast

On white

4.10

#178F5B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.12

#178F5B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #178F5B

5.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##178F5B	#FFFFFF	#000000	##000000
##178F5B	1.00	4.10	5.12	5.12
#FFFFFF	4.10	1.00	21.00	21.00
#000000	5.12	21.00	1.00	1.00
##000000	5.12	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8E8358

Deuteranopia (green-blind)

#80795E

Tritanopia (blue-blind)

#008E82

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #178f5b;
/* rgb */ color: rgb(23, 143, 91);
/* oklch */ color: oklch(57.5% 0.128 158.1);

Tailwind

colors: {
  custom: {
    50: '#6bb189',
    500: '#178f5b',
    950: '#000000',
  },
}

SCSS

$custom: #178f5b;
$custom-light: #6bb189;
$custom-dark: #000000;

JSON

{
  "hex": "#178f5b",
  "rgb": {
    "r": 23,
    "g": 143,
    "b": 91
  },
  "hsl": {
    "h": 154,
    "s": 72.289,
    "l": 32.549
  },
  "oklch": {
    "l": 0.57534,
    "c": 0.12805,
    "h": 158.1
  },
  "luminance": 0.20582
}

Semantic roles & 50–950 ramp

primary

#178F5B

secondary

#C14178

accent

#3988EF

background

#F7FBF8

surface

#EDF6F0

border

#C8D0CB

text

#08110B

muted

#7B807C

Preview Lab

Preview with #178F5B

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

Preview Lab → · Contrast checker → · Palette generator →