#174E5B#174E5B

#174E5B is a dark, muted cyan. Relative luminance 0.064; OKLCH L 39.5% C 0.060 H 216.7°. Best body text is #FFFFFF at 9.22:1 contrast (WCAG AA passes).

Color values

HEX	#174E5B
RGB	rgb(23, 78, 91)
HSL	hsl(191, 60%, 22%)
HSV	hsv(191, 75%, 36%)
CMYK	cmyk(74.7%, 14.3%, 0%, 64.3%)
CIE-LAB	lab(30.37, -12.94, -12.83)
CIE-LCH	lch(30.37, 18.22, 224.76°)
OKLab	oklab(39.46% -0.0479 -0.0357)
OKLCH	oklch(39.46% 0.06 216.7)
XYZ	xyz(4.9653, 6.3857, 10.8664)
Luminance	0.0639 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#174E5B #5B2417

analogous

#175B46 #174E5B #172C5B

triadic

#174E5B #5B174E #4E5B17

tetradic

#174E5B #46175B #5B2417 #2C5B17

square

#174E5B #46175B #5B2417 #2C5B17

split-complementary

#174E5B #5B172C #5B4617

monochromatic

#061518 #0B242A #174E5B #23788C #30A2BD

Accessibility & contrast

On white

9.22

#174E5B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.28

#174E5B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #174E5B

9.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##174E5B	#FFFFFF	#000000	##FFFFFF
##174E5B	1.00	9.22	2.28	9.22
#FFFFFF	9.22	1.00	21.00	1.00
#000000	2.28	21.00	1.00	21.00
##FFFFFF	9.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#454B5C

Deuteranopia (green-blind)

#3C445B

Tritanopia (blue-blind)

#005352

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #174e5b;
/* rgb */ color: rgb(23, 78, 91);
/* oklch */ color: oklch(39.5% 0.060 216.7);

Tailwind

colors: {
  custom: {
    50: '#5f7f89',
    500: '#174e5b',
    950: '#000000',
  },
}

SCSS

$custom: #174e5b;
$custom-light: #5f7f89;
$custom-dark: #000000;

JSON

{
  "hex": "#174e5b",
  "rgb": {
    "r": 23,
    "g": 78,
    "b": 91
  },
  "hsl": {
    "h": 191.471,
    "s": 59.649,
    "l": 22.353
  },
  "oklch": {
    "l": 0.39455,
    "c": 0.05977,
    "h": 216.7
  },
  "luminance": 0.06386
}

Semantic roles & 50–950 ramp

primary

#174E5B

secondary

#924C3C

accent

#6345E3

background

#F5F7F8

surface

#EAEEF0

border

#C6C9CB

text

#050A0B

muted

#797C7C

Preview Lab

Preview with #174E5B

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

Preview Lab → · Contrast checker → · Palette generator →