#173066#173066

#173066 is a dark, moderate blue. Relative luminance 0.033; OKLCH L 32.3% C 0.100 H 263.2°. Best body text is #FFFFFF at 12.72:1 contrast (WCAG AA passes).

Color values

HEX	#173066
RGB	rgb(23, 48, 102)
HSL	hsl(221, 63%, 25%)
HSV	hsv(221, 77%, 40%)
CMYK	cmyk(77.5%, 52.9%, 0%, 60%)
CIE-LAB	lab(21.04, 11.44, -34.61)
CIE-LCH	lch(21.04, 36.45, 288.29°)
OKLab	oklab(32.32% -0.0118 -0.0994)
OKLCH	oklch(32.32% 0.1 263.2)
XYZ	xyz(3.8077, 3.2550, 12.9954)
Luminance	0.0326 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173066 #664D17

analogous

#175866 #173066 #261766

triadic

#173066 #661730 #306617

tetradic

#173066 #661758 #664D17 #176626

square

#173066 #661758 #664D17 #176626

split-complementary

#173066 #662617 #586617

monochromatic

#060C19 #0C1834 #173066 #224898 #2E5FCA

Accessibility & contrast

On white

12.72

#173066 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.65

#173066 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173066

12.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173066	#FFFFFF	#000000	##FFFFFF
##173066	1.00	12.72	1.65	12.72
#FFFFFF	12.72	1.00	21.00	1.00
#000000	1.65	21.00	1.00	21.00
##FFFFFF	12.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#103668

Deuteranopia (green-blind)

#002F65

Tritanopia (blue-blind)

#003D46

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #173066;
/* rgb */ color: rgb(23, 48, 102);
/* oklch */ color: oklch(32.3% 0.100 263.2);

Tailwind

colors: {
  custom: {
    50: '#606792',
    500: '#173066',
    950: '#000000',
  },
}

SCSS

$custom: #173066;
$custom-light: #606792;
$custom-dark: #000000;

JSON

{
  "hex": "#173066",
  "rgb": {
    "r": 23,
    "g": 48,
    "b": 102
  },
  "hsl": {
    "h": 221.013,
    "s": 63.2,
    "l": 24.51
  },
  "oklch": {
    "l": 0.32322,
    "c": 0.10015,
    "h": 263.2
  },
  "luminance": 0.03255
}

Semantic roles & 50–950 ramp

primary

#173066

secondary

#9C7E3C

accent

#B242E6

background

#F6F6F9

surface

#EBEBF1

border

#C6C6CB

text

#05060D

muted

#7A7A7E

Preview Lab

Preview with #173066

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

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