#178FA1#178FA1

#178FA1 is a mid, moderate teal. Relative luminance 0.224; OKLCH L 59.8% C 0.099 H 211.0°. Best body text is #000000 at 5.48:1 contrast (WCAG AA passes).

Color values

HEX	#178FA1
RGB	rgb(23, 143, 161)
HSL	hsl(188, 75%, 36%)
HSV	hsv(188, 86%, 63%)
CMYK	cmyk(85.7%, 11.2%, 0%, 36.9%)
CIE-LAB	lab(54.45, -24.13, -18.31)
CIE-LCH	lch(54.45, 30.29, 217.18°)
OKLab	oklab(59.78% -0.0851 -0.0511)
OKLCH	oklch(59.78% 0.099 211)
XYZ	xyz(16.6060, 22.3981, 37.1594)
Luminance	0.2240 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#178FA1 #A12917

analogous

#17A16E #178FA1 #174AA1

triadic

#178FA1 #A1178F #8FA117

tetradic

#178FA1 #6E17A1 #A12917 #4AA117

square

#178FA1 #6E17A1 #A12917 #4AA117

split-complementary

#178FA1 #A1174A #A16E17

monochromatic

#083036 #0F5F6B #178FA1 #1FBFD7 #4DD2E6

Accessibility & contrast

On white

3.83

#178FA1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.48

#178FA1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #178FA1

5.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##178FA1	#FFFFFF	#000000	##000000
##178FA1	1.00	3.83	5.48	5.48
#FFFFFF	3.83	1.00	21.00	21.00
#000000	5.48	21.00	1.00	1.00
##000000	5.48	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#808AA2

Deuteranopia (green-blind)

#6F7DA1

Tritanopia (blue-blind)

#009794

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #178fa1;
/* rgb */ color: rgb(23, 143, 161);
/* oklch */ color: oklch(59.8% 0.099 211.0);

Tailwind

colors: {
  custom: {
    50: '#71b0bc',
    500: '#178fa1',
    950: '#000000',
  },
}

SCSS

$custom: #178fa1;
$custom-light: #71b0bc;
$custom-dark: #000000;

JSON

{
  "hex": "#178fa1",
  "rgb": {
    "r": 23,
    "g": 143,
    "b": 161
  },
  "hsl": {
    "h": 187.826,
    "s": 75,
    "l": 36.078
  },
  "oklch": {
    "l": 0.59783,
    "c": 0.09925,
    "h": 211
  },
  "luminance": 0.224
}

Semantic roles & 50–950 ramp

primary

#178FA1

secondary

#C75C4C

accent

#4F36F2

background

#F7FAFB

surface

#EDF4F6

border

#C8CED0

text

#091012

muted

#7B7F81

Preview Lab

Preview with #178FA1

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

Preview Lab → · Contrast checker → · Palette generator →