#175B5E#175B5E

#175B5E is a dark, moderate teal. Relative luminance 0.085; OKLCH L 43.2% C 0.065 H 199.4°. Best body text is #FFFFFF at 7.79:1 contrast (WCAG AA passes).

Color values

HEX#175B5E
RGBrgb(23, 91, 94)
HSLhsl(183, 61%, 23%)
HSVhsv(183, 76%, 37%)
CMYKcmyk(75.5%, 3.2%, 0%, 63.1%)
CIE-LABlab(34.95, -19.26, -7.78)
CIE-LCHlch(34.95, 20.77, 202.01°)
OKLaboklab(43.19% -0.0614 -0.0216)
OKLCHoklch(43.19% 0.065 199.4)
XYZxyz(6.1139, 8.4718, 11.9005)
Luminance0.0847 (WCAG relative)
Temperaturecool
Familyteal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#175B5E #5E1A17
analogous
#175E3D #175B5E #17375E
triadic
#175B5E #5E175B #5B5E17
tetradic
#175B5E #3D175E #5E1A17 #375E17
square
#175B5E #3D175E #5E1A17 #375E17
split-complementary
#175B5E #5E1737 #5E3D17
monochromatic
#061819 #0B2B2D #175B5E #238B8F #2FBAC0

Accessibility & contrast

On white

7.79
#175B5E on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.69
#175B5E on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #175B5E
7.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##175B5E#FFFFFF#000000##FFFFFF
##175B5E1.007.792.697.79
#FFFFFF7.791.0021.001.00
#0000002.6921.001.0021.00
##FFFFFF7.791.0021.001.00

Color blindness preview

Protanopia (red-blind)
#54575E
Deuteranopia (green-blind)
#4A4F5E
Tritanopia (blue-blind)
#005F5C
Achromatopsia (no color)
#525252

Design tokens & code

CSS
--color: #175b5e;
/* rgb */ color: rgb(23, 91, 94);
/* oklch */ color: oklch(43.2% 0.065 199.4);
Tailwind
colors: {
  custom: {
    50: '#61898b',
    500: '#175b5e',
    950: '#000000',
  },
}
SCSS
$custom: #175b5e;
$custom-light: #61898b;
$custom-dark: #000000;
JSON
{
  "hex": "#175b5e",
  "rgb": {
    "r": 23,
    "g": 91,
    "b": 94
  },
  "hsl": {
    "h": 182.535,
    "s": 60.684,
    "l": 22.941
  },
  "oklch": {
    "l": 0.4319,
    "c": 0.06512,
    "h": 199.4
  },
  "luminance": 0.08472
}

Semantic roles & 50–950 ramp

primary
#175B5E
secondary
#95403C
accent
#4B44E4
background
#F6F8F8
surface
#EBF0F0
border
#C6CBCB
text
#050B0C
muted
#7A7C7D

Preview Lab

Preview with #175B5E

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

Preview Lab → · Contrast checker → · Palette generator →

#175B5E Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva