#173D65#173D65

#173D65 is a dark, moderate cyan. Relative luminance 0.045; OKLCH L 35.5% C 0.082 H 252.2°. Best body text is #FFFFFF at 11.10:1 contrast (WCAG AA passes).

Color values

HEX	#173D65
RGB	rgb(23, 61, 101)
HSL	hsl(211, 63%, 24%)
HSV	hsv(211, 77%, 40%)
CMYK	cmyk(77.2%, 39.6%, 0%, 60.4%)
CIE-LAB	lab(25.13, 1.83, -27.41)
CIE-LCH	lch(25.13, 27.47, 273.81°)
OKLab	oklab(35.47% -0.0251 -0.078)
OKLCH	oklch(35.47% 0.082 252.2)
XYZ	xyz(4.3702, 4.4587, 12.9397)
Luminance	0.0446 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173D65 #653F17

analogous

#176465 #173D65 #181765

triadic

#173D65 #65173D #3D6517

tetradic

#173D65 #651764 #653F17 #176518

square

#173D65 #651764 #653F17 #176518

split-complementary

#173D65 #651817 #646517

monochromatic

#060F19 #0C1F33 #173D65 #225B97 #2E79C9

Accessibility & contrast

On white

11.10

#173D65 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#173D65 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173D65

11.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173D65	#FFFFFF	#000000	##FFFFFF
##173D65	1.00	11.10	1.89	11.10
#FFFFFF	11.10	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B4067

Deuteranopia (green-blind)

#1F3864

Tritanopia (blue-blind)

#00464C

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #173d65;
/* rgb */ color: rgb(23, 61, 101);
/* oklch */ color: oklch(35.5% 0.082 252.2);

Tailwind

colors: {
  custom: {
    50: '#607291',
    500: '#173d65',
    950: '#000000',
  },
}

SCSS

$custom: #173d65;
$custom-light: #607291;
$custom-dark: #000000;

JSON

{
  "hex": "#173d65",
  "rgb": {
    "r": 23,
    "g": 61,
    "b": 101
  },
  "hsl": {
    "h": 210.769,
    "s": 62.903,
    "l": 24.314
  },
  "oklch": {
    "l": 0.35467,
    "c": 0.08196,
    "h": 252.2
  },
  "luminance": 0.04459
}

Semantic roles & 50–950 ramp

primary

#173D65

secondary

#9B6D3C

accent

#9642E6

background

#F5F6F8

surface

#EAECF0

border

#C6C7CB

text

#05070D

muted

#797A7D

Preview Lab

Preview with #173D65

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

Preview Lab → · Contrast checker → · Palette generator →