#174A55#174A55

#174A55 is a dark, muted cyan. Relative luminance 0.057; OKLCH L 38.1% C 0.056 H 214.8°. Best body text is #FFFFFF at 9.78:1 contrast (WCAG AA passes).

Color values

HEX	#174A55
RGB	rgb(23, 74, 85)
HSL	hsl(191, 57%, 21%)
HSV	hsv(191, 73%, 33%)
CMYK	cmyk(72.9%, 12.9%, 0%, 66.7%)
CIE-LAB	lab(28.73, -12.73, -11.47)
CIE-LCH	lch(28.73, 17.14, 222.02°)
OKLab	oklab(38.06% -0.0459 -0.0319)
OKLCH	oklch(38.06% 0.056 214.8)
XYZ	xyz(4.4411, 5.7351, 9.4655)
Luminance	0.0574 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#174A55 #552217

analogous

#175541 #174A55 #172B55

triadic

#174A55 #55174A #4A5517

tetradic

#174A55 #411755 #552217 #2B5517

square

#174A55 #411755 #552217 #2B5517

split-complementary

#174A55 #55172B #554117

monochromatic

#071518 #0A2025 #174A55 #247485 #319EB5

Accessibility & contrast

On white

9.78

#174A55 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#174A55 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #174A55

9.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##174A55	#FFFFFF	#000000	##FFFFFF
##174A55	1.00	9.78	2.15	9.78
#FFFFFF	9.78	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#424756

Deuteranopia (green-blind)

#394155

Tritanopia (blue-blind)

#004E4D

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #174a55;
/* rgb */ color: rgb(23, 74, 85);
/* oklch */ color: oklch(38.1% 0.056 214.8);

Tailwind

colors: {
  custom: {
    50: '#5d7c84',
    500: '#174a55',
    950: '#000000',
  },
}

SCSS

$custom: #174a55;
$custom-light: #5d7c84;
$custom-dark: #000000;

JSON

{
  "hex": "#174a55",
  "rgb": {
    "r": 23,
    "g": 74,
    "b": 85
  },
  "hsl": {
    "h": 190.645,
    "s": 57.407,
    "l": 21.176
  },
  "oklch": {
    "l": 0.38061,
    "c": 0.05595,
    "h": 214.8
  },
  "luminance": 0.05736
}

Semantic roles & 50–950 ramp

primary

#174A55

secondary

#8C4A3C

accent

#6247E1

background

#F5F7F8

surface

#E9EEEF

border

#C5C9CA

text

#05090B

muted

#797B7C

Preview Lab

Preview with #174A55

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

Preview Lab → · Contrast checker → · Palette generator →