#172358#172358

#172358 is a dark, moderate blue. Relative luminance 0.021; OKLCH L 28.1% C 0.097 H 269.5°. Best body text is #FFFFFF at 14.81:1 contrast (WCAG AA passes).

Color values

HEX	#172358
RGB	rgb(23, 35, 88)
HSL	hsl(229, 59%, 22%)
HSV	hsv(229, 74%, 35%)
CMYK	cmyk(73.9%, 60.2%, 0%, 65.5%)
CIE-LAB	lab(15.95, 15.15, -33.60)
CIE-LCH	lch(15.95, 36.86, 294.28°)
OKLab	oklab(28.11% -0.0008 -0.0967)
OKLCH	oklch(28.11% 0.097 269.5)
XYZ	xyz(2.7152, 2.0885, 9.4907)
Luminance	0.0209 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172358 #584C17

analogous

#174458 #172358 #2C1758

triadic

#172358 #581723 #235817

tetradic

#172358 #581744 #584C17 #17582C

square

#172358 #581744 #584C17 #17582C

split-complementary

#172358 #582C17 #445817

monochromatic

#060A18 #0A1027 #172358 #243689 #304AB9

Accessibility & contrast

On white

14.81

#172358 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.42

#172358 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172358

14.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172358	#FFFFFF	#000000	##FFFFFF
##172358	1.00	14.81	1.42	14.81
#FFFFFF	14.81	1.00	21.00	1.00
#000000	1.42	21.00	1.00	21.00
##FFFFFF	14.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002B5A

Deuteranopia (green-blind)

#002557

Tritanopia (blue-blind)

#003039

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #172358;
/* rgb */ color: rgb(23, 35, 88);
/* oklch */ color: oklch(28.1% 0.097 269.5);

Tailwind

colors: {
  custom: {
    50: '#5e5d88',
    500: '#172358',
    950: '#000000',
  },
}

SCSS

$custom: #172358;
$custom-light: #5e5d88;
$custom-dark: #000000;

JSON

{
  "hex": "#172358",
  "rgb": {
    "r": 23,
    "g": 35,
    "b": 88
  },
  "hsl": {
    "h": 228.923,
    "s": 58.559,
    "l": 21.765
  },
  "oklch": {
    "l": 0.28113,
    "c": 0.0967,
    "h": 269.5
  },
  "luminance": 0.02089
}

Semantic roles & 50–950 ramp

primary

#172358

secondary

#8F803C

accent

#C546E2

background

#F5F5F8

surface

#E9E9F0

border

#C5C5CB

text

#05040B

muted

#79797C

Preview Lab

Preview with #172358

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

Preview Lab → · Contrast checker → · Palette generator →