#171959#171959

#171959 is a dark, moderate blue. Relative luminance 0.016; OKLCH L 26.1% C 0.112 H 274.1°. Best body text is #FFFFFF at 15.91:1 contrast (WCAG AA passes).

Color values

HEX	#171959
RGB	rgb(23, 25, 89)
HSL	hsl(238, 59%, 22%)
HSV	hsv(238, 74%, 35%)
CMYK	cmyk(74.2%, 71.9%, 0%, 65.1%)
CIE-LAB	lab(13.22, 22.82, -38.71)
CIE-LCH	lch(13.22, 44.94, 300.51°)
OKLab	oklab(26.13% 0.008 -0.1118)
OKLCH	oklch(26.13% 0.112 274.1)
XYZ	xyz(2.5036, 1.5985, 9.6259)
Luminance	0.0160 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171959 #595717

analogous

#173A59 #171959 #361759

triadic

#171959 #591719 #195917

tetradic

#171959 #59173A #595717 #175936

square

#171959 #59173A #595717 #175936

split-complementary

#171959 #593617 #3A5917

monochromatic

#060718 #0A0B28 #171959 #24278A #3034BA

Accessibility & contrast

On white

15.91

#171959 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.32

#171959 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171959

15.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171959	#FFFFFF	#000000	##FFFFFF
##171959	1.00	15.91	1.32	15.91
#FFFFFF	15.91	1.00	21.00	1.00
#000000	1.32	21.00	1.00	21.00
##FFFFFF	15.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00255B

Deuteranopia (green-blind)

#001F58

Tritanopia (blue-blind)

#002A36

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #171959;
/* rgb */ color: rgb(23, 25, 89);
/* oklch */ color: oklch(26.1% 0.112 274.1);

Tailwind

colors: {
  custom: {
    50: '#5f5689',
    500: '#171959',
    950: '#000000',
  },
}

SCSS

$custom: #171959;
$custom-light: #5f5689;
$custom-dark: #000000;

JSON

{
  "hex": "#171959",
  "rgb": {
    "r": 23,
    "g": 25,
    "b": 89
  },
  "hsl": {
    "h": 238.182,
    "s": 58.929,
    "l": 21.961
  },
  "oklch": {
    "l": 0.2613,
    "c": 0.11211,
    "h": 274.1
  },
  "luminance": 0.01599
}

Semantic roles & 50–950 ramp

primary

#171959

secondary

#908D3C

accent

#DD46E2

background

#F5F5F8

surface

#EAE9F0

border

#C6C5CB

text

#05030B

muted

#79787C

Preview Lab

Preview with #171959

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

Preview Lab → · Contrast checker → · Palette generator →