#173458#173458

#173458 is a dark, moderate cyan. Relative luminance 0.033; OKLCH L 32.3% C 0.073 H 255.1°. Best body text is #FFFFFF at 12.59:1 contrast (WCAG AA passes).

Color values

HEX	#173458
RGB	rgb(23, 52, 88)
HSL	hsl(213, 59%, 22%)
HSV	hsv(213, 74%, 35%)
CMYK	cmyk(73.9%, 40.9%, 0%, 65.5%)
CIE-LAB	lab(21.37, 2.75, -24.90)
CIE-LCH	lch(21.37, 25.05, 276.29°)
OKLab	oklab(32.27% -0.0189 -0.0708)
OKLCH	oklch(32.27% 0.073 255.1)
XYZ	xyz(3.3421, 3.3424, 9.6996)
Luminance	0.0334 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173458 #583B17

analogous

#175558 #173458 #1B1758

triadic

#173458 #581734 #345817

tetradic

#173458 #581755 #583B17 #17581B

square

#173458 #581755 #583B17 #17581B

split-complementary

#173458 #581B17 #555817

monochromatic

#060E18 #0A1727 #173458 #245189 #306DB9

Accessibility & contrast

On white

12.59

#173458 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#173458 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173458

12.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173458	#FFFFFF	#000000	##FFFFFF
##173458	1.00	12.59	1.67	12.59
#FFFFFF	12.59	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#243759

Deuteranopia (green-blind)

#1A3057

Tritanopia (blue-blind)

#003C41

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #173458;
/* rgb */ color: rgb(23, 52, 88);
/* oklch */ color: oklch(32.3% 0.073 255.1);

Tailwind

colors: {
  custom: {
    50: '#5d6b87',
    500: '#173458',
    950: '#000000',
  },
}

SCSS

$custom: #173458;
$custom-light: #5d6b87;
$custom-dark: #000000;

JSON

{
  "hex": "#173458",
  "rgb": {
    "r": 23,
    "g": 52,
    "b": 88
  },
  "hsl": {
    "h": 213.231,
    "s": 58.559,
    "l": 21.765
  },
  "oklch": {
    "l": 0.32267,
    "c": 0.07332,
    "h": 255.1
  },
  "luminance": 0.03343
}

Semantic roles & 50–950 ramp

primary

#173458

secondary

#8F6A3C

accent

#9C46E2

background

#F5F6F8

surface

#E9EBEF

border

#C5C6CA

text

#05060B

muted

#797A7C

Preview Lab

Preview with #173458

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

Preview Lab → · Contrast checker → · Palette generator →