#173955#173955

#173955 is a dark, moderate cyan. Relative luminance 0.038; OKLCH L 33.4% C 0.063 H 246.2°. Best body text is #FFFFFF at 11.98:1 contrast (WCAG AA passes).

Color values

HEX	#173955
RGB	rgb(23, 57, 85)
HSL	hsl(207, 57%, 21%)
HSV	hsv(207, 73%, 33%)
CMYK	cmyk(72.9%, 32.9%, 0%, 66.7%)
CIE-LAB	lab(22.88, -1.92, -20.54)
CIE-LCH	lch(22.88, 20.63, 264.65°)
OKLab	oklab(33.39% -0.0256 -0.058)
OKLCH	oklch(33.39% 0.063 246.2)
XYZ	xyz(3.4556, 3.7639, 9.1370)
Luminance	0.0376 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173955 #553317

analogous

#175552 #173955 #171A55

triadic

#173955 #551739 #395517

tetradic

#173955 #521755 #553317 #1A5517

square

#173955 #521755 #553317 #1A5517

split-complementary

#173955 #55171A #555217

monochromatic

#071018 #0A1925 #173955 #245985 #317AB5

Accessibility & contrast

On white

11.98

#173955 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#173955 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173955

11.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173955	#FFFFFF	#000000	##FFFFFF
##173955	1.00	11.98	1.75	11.98
#FFFFFF	11.98	1.00	21.00	1.00
#000000	1.75	21.00	1.00	21.00
##FFFFFF	11.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D3A56

Deuteranopia (green-blind)

#243454

Tritanopia (blue-blind)

#004043

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #173955;
/* rgb */ color: rgb(23, 57, 85);
/* oklch */ color: oklch(33.4% 0.063 246.2);

Tailwind

colors: {
  custom: {
    50: '#5c6f85',
    500: '#173955',
    950: '#000000',
  },
}

SCSS

$custom: #173955;
$custom-light: #5c6f85;
$custom-dark: #000000;

JSON

{
  "hex": "#173955",
  "rgb": {
    "r": 23,
    "g": 57,
    "b": 85
  },
  "hsl": {
    "h": 207.097,
    "s": 57.407,
    "l": 21.176
  },
  "oklch": {
    "l": 0.33393,
    "c": 0.06345,
    "h": 246.2
  },
  "luminance": 0.03764
}

Semantic roles & 50–950 ramp

primary

#173955

secondary

#8C603C

accent

#8C47E1

background

#F5F6F8

surface

#E9ECEF

border

#C5C7CA

text

#04070B

muted

#797A7C

Preview Lab

Preview with #173955

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

Preview Lab → · Contrast checker → · Palette generator →