#173963#173963

#173963 is a dark, moderate cyan. Relative luminance 0.040; OKLCH L 34.3% C 0.084 H 255.2°. Best body text is #FFFFFF at 11.66:1 contrast (WCAG AA passes).

Color values

HEX	#173963
RGB	rgb(23, 57, 99)
HSL	hsl(213, 62%, 24%)
HSV	hsv(213, 77%, 39%)
CMYK	cmyk(76.8%, 42.4%, 0%, 61.2%)
CIE-LAB	lab(23.70, 3.77, -28.39)
CIE-LCH	lch(23.70, 28.64, 277.57°)
OKLab	oklab(34.31% -0.0214 -0.081)
OKLCH	oklch(34.31% 0.084 255.2)
XYZ	xyz(4.0678, 4.0088, 12.3614)
Luminance	0.0401 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173963 #634117

analogous

#175F63 #173963 #1B1763

triadic

#173963 #631739 #396317

tetradic

#173963 #63175F #634117 #17631B

square

#173963 #63175F #634117 #17631B

split-complementary

#173963 #631B17 #5F6317

monochromatic

#060E19 #0B1C31 #173963 #235695 #2E72C6

Accessibility & contrast

On white

11.66

#173963 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#173963 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173963

11.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173963	#FFFFFF	#000000	##FFFFFF
##173963	1.00	11.66	1.80	11.66
#FFFFFF	11.66	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#253C65

Deuteranopia (green-blind)

#193562

Tritanopia (blue-blind)

#004349

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #173963;
/* rgb */ color: rgb(23, 57, 99);
/* oklch */ color: oklch(34.3% 0.084 255.2);

Tailwind

colors: {
  custom: {
    50: '#5f6f90',
    500: '#173963',
    950: '#000000',
  },
}

SCSS

$custom: #173963;
$custom-light: #5f6f90;
$custom-dark: #000000;

JSON

{
  "hex": "#173963",
  "rgb": {
    "r": 23,
    "g": 57,
    "b": 99
  },
  "hsl": {
    "h": 213.158,
    "s": 62.295,
    "l": 23.922
  },
  "oklch": {
    "l": 0.34309,
    "c": 0.08377,
    "h": 255.2
  },
  "luminance": 0.04009
}

Semantic roles & 50–950 ramp

primary

#173963

secondary

#9A703C

accent

#9C42E5

background

#F5F6F8

surface

#EAECF0

border

#C6C7CB

text

#05070C

muted

#797A7D

Preview Lab

Preview with #173963

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

Preview Lab → · Contrast checker → · Palette generator →