#172153#172153

#172153 is a dark, moderate blue. Relative luminance 0.019; OKLCH L 27.2% C 0.092 H 270.6°. Best body text is #FFFFFF at 15.23:1 contrast (WCAG AA passes).

Color values

HEX	#172153
RGB	rgb(23, 33, 83)
HSL	hsl(230, 57%, 21%)
HSV	hsv(230, 72%, 33%)
CMYK	cmyk(72.3%, 60.2%, 0%, 67.5%)
CIE-LAB	lab(14.92, 14.58, -31.89)
CIE-LCH	lch(14.92, 35.06, 294.57°)
OKLab	oklab(27.21% 0.0009 -0.0917)
OKLCH	oklch(27.21% 0.092 270.6)
XYZ	xyz(2.4580, 1.8942, 8.4180)
Luminance	0.0189 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172153 #534917

analogous

#173F53 #172153 #2B1753

triadic

#172153 #531721 #215317

tetradic

#172153 #53173F #534917 #17532B

square

#172153 #53173F #534917 #17532B

split-complementary

#172153 #532B17 #3F5317

monochromatic

#070A18 #0A0E23 #172153 #243483 #3247B3

Accessibility & contrast

On white

15.23

#172153 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.38

#172153 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172153

15.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172153	#FFFFFF	#000000	##FFFFFF
##172153	1.00	15.23	1.38	15.23
#FFFFFF	15.23	1.00	21.00	1.00
#000000	1.38	21.00	1.00	21.00
##FFFFFF	15.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002855

Deuteranopia (green-blind)

#002352

Tritanopia (blue-blind)

#002D36

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #172153;
/* rgb */ color: rgb(23, 33, 83);
/* oklch */ color: oklch(27.2% 0.092 270.6);

Tailwind

colors: {
  custom: {
    50: '#5c5b84',
    500: '#172153',
    950: '#000000',
  },
}

SCSS

$custom: #172153;
$custom-light: #5c5b84;
$custom-dark: #000000;

JSON

{
  "hex": "#172153",
  "rgb": {
    "r": 23,
    "g": 33,
    "b": 83
  },
  "hsl": {
    "h": 230,
    "s": 56.604,
    "l": 20.784
  },
  "oklch": {
    "l": 0.27213,
    "c": 0.0917,
    "h": 270.6
  },
  "luminance": 0.01894
}

Semantic roles & 50–950 ramp

primary

#172153

secondary

#8A7D3C

accent

#C748E0

background

#F5F5F8

surface

#E9E9EF

border

#C5C5CA

text

#04040B

muted

#79797C

Preview Lab

Preview with #172153

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

Preview Lab → · Contrast checker → · Palette generator →