#178BA1#178BA1

#178BA1 is a mid, moderate teal. Relative luminance 0.212; OKLCH L 58.8% C 0.099 H 214.8°. Best body text is #000000 at 5.24:1 contrast (WCAG AA passes).

Color values

HEX	#178BA1
RGB	rgb(23, 139, 161)
HSL	hsl(190, 75%, 36%)
HSV	hsv(190, 86%, 63%)
CMYK	cmyk(85.7%, 13.7%, 0%, 36.9%)
CIE-LAB	lab(53.19, -22.05, -20.23)
CIE-LCH	lch(53.19, 29.93, 222.53°)
OKLab	oklab(58.77% -0.0812 -0.0565)
OKLCH	oklch(58.77% 0.099 214.8)
XYZ	xyz(16.0162, 21.2185, 36.9628)
Luminance	0.2122 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#178BA1 #A12D17

analogous

#17A172 #178BA1 #1746A1

triadic

#178BA1 #A1178B #8BA117

tetradic

#178BA1 #7217A1 #A12D17 #46A117

square

#178BA1 #7217A1 #A12D17 #46A117

split-complementary

#178BA1 #A11746 #A17217

monochromatic

#082F36 #0F5D6B #178BA1 #1FB9D7 #4DCDE6

Accessibility & contrast

On white

4.00

#178BA1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.24

#178BA1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #178BA1

5.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##178BA1	#FFFFFF	#000000	##000000
##178BA1	1.00	4.00	5.24	5.24
#FFFFFF	4.00	1.00	21.00	21.00
#000000	5.24	21.00	1.00	1.00
##000000	5.24	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7C86A2

Deuteranopia (green-blind)

#6A7AA1

Tritanopia (blue-blind)

#009392

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #178ba1;
/* rgb */ color: rgb(23, 139, 161);
/* oklch */ color: oklch(58.8% 0.099 214.8);

Tailwind

colors: {
  custom: {
    50: '#70adbc',
    500: '#178ba1',
    950: '#000000',
  },
}

SCSS

$custom: #178ba1;
$custom-light: #70adbc;
$custom-dark: #000000;

JSON

{
  "hex": "#178ba1",
  "rgb": {
    "r": 23,
    "g": 139,
    "b": 161
  },
  "hsl": {
    "h": 189.565,
    "s": 75,
    "l": 36.078
  },
  "oklch": {
    "l": 0.58766,
    "c": 0.09897,
    "h": 214.8
  },
  "luminance": 0.21221
}

Semantic roles & 50–950 ramp

primary

#178BA1

secondary

#C7604C

accent

#5436F2

background

#F7FAFB

surface

#EDF4F6

border

#C8CED0

text

#091012

muted

#7B7F81

Preview Lab

Preview with #178BA1

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

Preview Lab → · Contrast checker → · Palette generator →