#173784#173784

#173784 is a dark, vivid blue. Relative luminance 0.046; OKLCH L 36.5% C 0.135 H 263.9°. Best body text is #FFFFFF at 10.96:1 contrast (WCAG AA passes).

Color values

HEX	#173784
RGB	rgb(23, 55, 132)
HSL	hsl(222, 70%, 30%)
HSV	hsv(222, 83%, 52%)
CMYK	cmyk(82.6%, 58.3%, 0%, 48.2%)
CIE-LAB	lab(25.50, 18.89, -46.51)
CIE-LCH	lch(25.50, 50.20, 292.11°)
OKLab	oklab(36.46% -0.0145 -0.1343)
OKLCH	oklch(36.46% 0.135 263.9)
XYZ	xyz(5.8829, 4.5798, 22.3993)
Luminance	0.0458 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173784 #846417

analogous

#176E84 #173784 #2D1784

triadic

#173784 #841737 #378417

tetradic

#173784 #84176E #846417 #17842D

square

#173784 #84176E #846417 #17842D

split-complementary

#173784 #842D17 #6E8417

monochromatic

#050C1C #0E2150 #173784 #204DB8 #3969DC

Accessibility & contrast

On white

10.96

#173784 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.92

#173784 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173784

10.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173784	#FFFFFF	#000000	##FFFFFF
##173784	1.00	10.96	1.92	10.96
#FFFFFF	10.96	1.00	21.00	1.00
#000000	1.92	21.00	1.00	21.00
##FFFFFF	10.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004287

Deuteranopia (green-blind)

#003883

Tritanopia (blue-blind)

#004A58

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #173784;
/* rgb */ color: rgb(23, 55, 132);
/* oklch */ color: oklch(36.5% 0.135 263.9);

Tailwind

colors: {
  custom: {
    50: '#686da8',
    500: '#173784',
    950: '#000000',
  },
}

SCSS

$custom: #173784;
$custom-light: #686da8;
$custom-dark: #000000;

JSON

{
  "hex": "#173784",
  "rgb": {
    "r": 23,
    "g": 55,
    "b": 132
  },
  "hsl": {
    "h": 222.385,
    "s": 70.323,
    "l": 30.392
  },
  "oklch": {
    "l": 0.36458,
    "c": 0.13509,
    "h": 263.9
  },
  "luminance": 0.0458
}

Semantic roles & 50–950 ramp

primary

#173784

secondary

#B8943F

accent

#B93BED

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#070710

muted

#7A7A7F

Preview Lab

Preview with #173784

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

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