#171A3E#171A3E

#171A3E is a very dark, moderate blue. Relative luminance 0.013; OKLCH L 23.8% C 0.068 H 276.3°. Best body text is #FFFFFF at 16.75:1 contrast (WCAG AA passes).

Color values

HEX	#171A3E
RGB	rgb(23, 26, 62)
HSL	hsl(235, 46%, 17%)
HSV	hsv(235, 63%, 24%)
CMYK	cmyk(62.9%, 58.1%, 0%, 75.7%)
CIE-LAB	lab(11.05, 11.32, -23.60)
CIE-LCH	lch(11.05, 26.17, 295.62°)
OKLab	oklab(23.76% 0.0075 -0.0674)
OKLCH	oklch(23.76% 0.068 276.3)
XYZ	xyz(1.5920, 1.2686, 4.7175)
Luminance	0.0127 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171A3E #3E3B17

analogous

#172E3E #171A3E #28173E

triadic

#171A3E #3E171A #1A3E17

tetradic

#171A3E #3E172E #3E3B17 #173E28

square

#171A3E #3E172E #3E3B17 #173E28

split-complementary

#171A3E #3E2817 #2E3E17

monochromatic

#080916 #080916 #171A3E #282D6B #383F97

Accessibility & contrast

On white

16.75

#171A3E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.25

#171A3E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171A3E

16.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171A3E	#FFFFFF	#000000	##FFFFFF
##171A3E	1.00	16.75	1.25	16.75
#FFFFFF	16.75	1.00	21.00	1.00
#000000	1.25	21.00	1.00	21.00
##FFFFFF	16.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#081F3F

Deuteranopia (green-blind)

#031C3D

Tritanopia (blue-blind)

#042229

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #171a3e;
/* rgb */ color: rgb(23, 26, 62);
/* oklch */ color: oklch(23.8% 0.068 276.3);

Tailwind

colors: {
  custom: {
    50: '#585673',
    500: '#171a3e',
    950: '#000000',
  },
}

SCSS

$custom: #171a3e;
$custom-light: #585673;
$custom-dark: #000000;

JSON

{
  "hex": "#171a3e",
  "rgb": {
    "r": 23,
    "g": 26,
    "b": 62
  },
  "hsl": {
    "h": 235.385,
    "s": 45.882,
    "l": 16.667
  },
  "oklch": {
    "l": 0.23762,
    "c": 0.06783,
    "h": 276.3
  },
  "luminance": 0.01269
}

Semantic roles & 50–950 ramp

primary

#171A3E

secondary

#75703C

accent

#CB52D6

background

#F5F5F7

surface

#E9E9ED

border

#C5C5C8

text

#030308

muted

#78787B

Preview Lab

Preview with #171A3E

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

Preview Lab → · Contrast checker → · Palette generator →