#174B57#174B57

#174B57 is a dark, muted cyan. Relative luminance 0.059; OKLCH L 38.4% C 0.057 H 216.1°. Best body text is #FFFFFF at 9.63:1 contrast (WCAG AA passes).

Color values

HEX	#174B57
RGB	rgb(23, 75, 87)
HSL	hsl(191, 58%, 22%)
HSV	hsv(191, 74%, 34%)
CMYK	cmyk(73.6%, 13.8%, 0%, 65.9%)
CIE-LAB	lab(29.16, -12.60, -12.10)
CIE-LCH	lch(29.16, 17.47, 223.84°)
OKLab	oklab(38.43% -0.0462 -0.0337)
OKLCH	oklch(38.43% 0.057 216.1)
XYZ	xyz(4.5890, 5.9019, 9.9123)
Luminance	0.0590 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#174B57 #572317

analogous

#175743 #174B57 #172B57

triadic

#174B57 #57174B #4B5717

tetradic

#174B57 #431757 #572317 #2B5717

square

#174B57 #431757 #572317 #2B5717

split-complementary

#174B57 #57172B #574317

monochromatic

#061518 #0A2127 #174B57 #247587 #319EB8

Accessibility & contrast

On white

9.63

#174B57 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#174B57 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #174B57

9.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##174B57	#FFFFFF	#000000	##FFFFFF
##174B57	1.00	9.63	2.18	9.63
#FFFFFF	9.63	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#434958

Deuteranopia (green-blind)

#3A4257

Tritanopia (blue-blind)

#004F4F

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #174b57;
/* rgb */ color: rgb(23, 75, 87);
/* oklch */ color: oklch(38.4% 0.057 216.1);

Tailwind

colors: {
  custom: {
    50: '#5e7d86',
    500: '#174b57',
    950: '#000000',
  },
}

SCSS

$custom: #174b57;
$custom-light: #5e7d86;
$custom-dark: #000000;

JSON

{
  "hex": "#174b57",
  "rgb": {
    "r": 23,
    "g": 75,
    "b": 87
  },
  "hsl": {
    "h": 191.25,
    "s": 58.182,
    "l": 21.569
  },
  "oklch": {
    "l": 0.38434,
    "c": 0.05719,
    "h": 216.1
  },
  "luminance": 0.05902
}

Semantic roles & 50–950 ramp

primary

#174B57

secondary

#8E4B3C

accent

#6346E1

background

#F5F7F8

surface

#E9EEEF

border

#C5C9CA

text

#05090B

muted

#797B7C

Preview Lab

Preview with #174B57

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

Preview Lab → · Contrast checker → · Palette generator →