#173E86#173E86

#173E86 is a dark, vivid blue. Relative luminance 0.053; OKLCH L 38.2% C 0.129 H 261.3°. Best body text is #FFFFFF at 10.15:1 contrast (WCAG AA passes).

Color values

HEX	#173E86
RGB	rgb(23, 62, 134)
HSL	hsl(219, 71%, 31%)
HSV	hsv(219, 83%, 53%)
CMYK	cmyk(82.8%, 53.7%, 0%, 47.5%)
CIE-LAB	lab(27.70, 14.80, -44.18)
CIE-LCH	lch(27.70, 46.59, 288.52°)
OKLab	oklab(38.18% -0.0194 -0.1273)
OKLCH	oklch(38.18% 0.129 261.3)
XYZ	xyz(6.3775, 5.3479, 23.2458)
Luminance	0.0535 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173E86 #865F17

analogous

#177586 #173E86 #271786

triadic

#173E86 #86173E #3E8617

tetradic

#173E86 #861775 #865F17 #178627

square

#173E86 #861775 #865F17 #178627

split-complementary

#173E86 #862717 #758617

monochromatic

#050E1E #0E2652 #173E86 #2056BA #3A73DD

Accessibility & contrast

On white

10.15

#173E86 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.07

#173E86 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173E86

10.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173E86	#FFFFFF	#000000	##FFFFFF
##173E86	1.00	10.15	2.07	10.15
#FFFFFF	10.15	1.00	21.00	1.00
#000000	2.07	21.00	1.00	21.00
##FFFFFF	10.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0A4789

Deuteranopia (green-blind)

#003D85

Tritanopia (blue-blind)

#00505B

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #173e86;
/* rgb */ color: rgb(23, 62, 134);
/* oklch */ color: oklch(38.2% 0.129 261.3);

Tailwind

colors: {
  custom: {
    50: '#6872aa',
    500: '#173e86',
    950: '#000000',
  },
}

SCSS

$custom: #173e86;
$custom-light: #6872aa;
$custom-dark: #000000;

JSON

{
  "hex": "#173e86",
  "rgb": {
    "r": 23,
    "g": 62,
    "b": 134
  },
  "hsl": {
    "h": 218.919,
    "s": 70.701,
    "l": 30.784
  },
  "oklch": {
    "l": 0.38176,
    "c": 0.1288,
    "h": 261.3
  },
  "luminance": 0.05349
}

Semantic roles & 50–950 ramp

primary

#173E86

secondary

#BA8F3F

accent

#AF3AED

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#070810

muted

#7A7B7F

Preview Lab

Preview with #173E86

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

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