#175B7E#175B7E

#175B7E is a dark, moderate cyan. Relative luminance 0.092; OKLCH L 44.7% C 0.086 H 236.5°. Best body text is #FFFFFF at 7.41:1 contrast (WCAG AA passes).

Color values

HEX	#175B7E
RGB	rgb(23, 91, 126)
HSL	hsl(200, 69%, 29%)
HSV	hsv(200, 82%, 49%)
CMYK	cmyk(81.7%, 27.8%, 0%, 50.6%)
CIE-LAB	lab(36.31, -7.64, -25.53)
CIE-LCH	lch(36.31, 26.65, 253.33°)
OKLab	oklab(44.73% -0.0477 -0.0721)
OKLCH	oklch(44.73% 0.086 236.5)
XYZ	xyz(7.8588, 9.1697, 21.0904)
Luminance	0.0917 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#175B7E #7E3A17

analogous

#177E6E #175B7E #17287E

triadic

#175B7E #7E175B #5B7E17

tetradic

#175B7E #6E177E #7E3A17 #287E17

square

#175B7E #6E177E #7E3A17 #287E17

split-complementary

#175B7E #7E1728 #7E6E17

monochromatic

#05131A #0E364A #175B7E #2080B2 #35A2DA

Accessibility & contrast

On white

7.41

#175B7E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.83

#175B7E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #175B7E

7.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##175B7E	#FFFFFF	#000000	##FFFFFF
##175B7E	1.00	7.41	2.83	7.41
#FFFFFF	7.41	1.00	21.00	1.00
#000000	2.83	21.00	1.00	21.00
##FFFFFF	7.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A5B80

Deuteranopia (green-blind)

#3C517D

Tritanopia (blue-blind)

#006467

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #175b7e;
/* rgb */ color: rgb(23, 91, 126);
/* oklch */ color: oklch(44.7% 0.086 236.5);

Tailwind

colors: {
  custom: {
    50: '#6689a3',
    500: '#175b7e',
    950: '#000000',
  },
}

SCSS

$custom: #175b7e;
$custom-light: #6689a3;
$custom-dark: #000000;

JSON

{
  "hex": "#175b7e",
  "rgb": {
    "r": 23,
    "g": 91,
    "b": 126
  },
  "hsl": {
    "h": 200.388,
    "s": 69.128,
    "l": 29.216
  },
  "oklch": {
    "l": 0.44734,
    "c": 0.08648,
    "h": 236.5
  },
  "luminance": 0.09171
}

Semantic roles & 50–950 ramp

primary

#175B7E

secondary

#B3663E

accent

#783CEC

background

#F6F8FA

surface

#EBF0F4

border

#C6CBCE

text

#070B0F

muted

#7A7C7F

Preview Lab

Preview with #175B7E

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

Preview Lab → · Contrast checker → · Palette generator →