#172589#172589

#172589 is a dark, vivid blue. Relative luminance 0.033; OKLCH L 33.5% C 0.164 H 268.4°. Best body text is #FFFFFF at 12.63:1 contrast (WCAG AA passes).

Color values

HEX	#172589
RGB	rgb(23, 37, 137)
HSL	hsl(233, 71%, 31%)
HSV	hsv(233, 83%, 54%)
CMYK	cmyk(83.2%, 73%, 0%, 46.3%)
CIE-LAB	lab(21.25, 33.18, -56.61)
CIE-LCH	lch(21.25, 65.62, 300.38°)
OKLab	oklab(33.46% -0.0045 -0.164)
OKLCH	oklch(33.46% 0.164 268.4)
XYZ	xyz(5.5287, 3.3108, 24.0097)
Luminance	0.0331 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172589 #897B17

analogous

#175E89 #172589 #421789

triadic

#172589 #891725 #258917

tetradic

#172589 #89175E #897B17 #178942

square

#172589 #89175E #897B17 #178942

split-complementary

#172589 #894217 #5E8917

monochromatic

#050920 #0E1755 #172589 #2033BD #3C50DE

Accessibility & contrast

On white

12.63

#172589 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.66

#172589 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172589

12.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172589	#FFFFFF	#000000	##FFFFFF
##172589	1.00	12.63	1.66	12.63
#FFFFFF	12.63	1.00	21.00	1.00
#000000	1.66	21.00	1.00	21.00
##FFFFFF	12.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00398C

Deuteranopia (green-blind)

#002D87

Tritanopia (blue-blind)

#004154

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #172589;
/* rgb */ color: rgb(23, 37, 137);
/* oklch */ color: oklch(33.5% 0.164 268.4);

Tailwind

colors: {
  custom: {
    50: '#6b60ad',
    500: '#172589',
    950: '#000000',
  },
}

SCSS

$custom: #172589;
$custom-light: #6b60ad;
$custom-dark: #000000;

JSON

{
  "hex": "#172589",
  "rgb": {
    "r": 23,
    "g": 37,
    "b": 137
  },
  "hsl": {
    "h": 232.632,
    "s": 71.25,
    "l": 31.373
  },
  "oklch": {
    "l": 0.33464,
    "c": 0.16409,
    "h": 268.4
  },
  "luminance": 0.03311
}

Semantic roles & 50–950 ramp

primary

#172589

secondary

#BDAD3F

accent

#D83AEE

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080510

muted

#7B797F

Preview Lab

Preview with #172589

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

Preview Lab → · Contrast checker → · Palette generator →