#171A50#171A50

#171A50 is a dark, moderate blue. Relative luminance 0.015; OKLCH L 25.4% C 0.097 H 274.7°. Best body text is #FFFFFF at 16.15:1 contrast (WCAG AA passes).

Color values

HEX	#171A50
RGB	rgb(23, 26, 80)
HSL	hsl(237, 55%, 20%)
HSV	hsv(237, 71%, 31%)
CMYK	cmyk(71.2%, 67.5%, 0%, 68.6%)
CIE-LAB	lab(12.61, 18.54, -33.61)
CIE-LCH	lch(12.61, 38.38, 298.88°)
OKLab	oklab(25.41% 0.0079 -0.0968)
OKLCH	oklch(25.41% 0.097 274.7)
XYZ	xyz(2.1702, 1.4999, 7.7630)
Luminance	0.0150 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 6.32

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171A50 #504D17

analogous

#173650 #171A50 #301750

triadic

#171A50 #50171A #1A5017

tetradic

#171A50 #501736 #504D17 #175030

square

#171A50 #501736 #504D17 #175030

split-complementary

#171A50 #503017 #365017

monochromatic

#070818 #090B20 #171A50 #252980 #3239AF

Accessibility & contrast

On white

16.15

#171A50 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.30

#171A50 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171A50

16.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171A50	#FFFFFF	#000000	##FFFFFF
##171A50	1.00	16.15	1.30	16.15
#FFFFFF	16.15	1.00	21.00	1.00
#000000	1.30	21.00	1.00	21.00
##FFFFFF	16.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002352

Deuteranopia (green-blind)

#001E4F

Tritanopia (blue-blind)

#002832

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #171a50;
/* rgb */ color: rgb(23, 26, 80);
/* oklch */ color: oklch(25.4% 0.097 274.7);

Tailwind

colors: {
  custom: {
    50: '#5c5682',
    500: '#171a50',
    950: '#000000',
  },
}

SCSS

$custom: #171a50;
$custom-light: #5c5682;
$custom-dark: #000000;

JSON

{
  "hex": "#171a50",
  "rgb": {
    "r": 23,
    "g": 26,
    "b": 80
  },
  "hsl": {
    "h": 236.842,
    "s": 55.34,
    "l": 20.196
  },
  "oklch": {
    "l": 0.25409,
    "c": 0.09716,
    "h": 274.7
  },
  "luminance": 0.015
}

Semantic roles & 50–950 ramp

primary

#171A50

secondary

#87833C

accent

#D749DF

background

#F5F5F8

surface

#E9E9EF

border

#C5C5CA

text

#04030A

muted

#79787C

Preview Lab

Preview with #171A50

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

Preview Lab → · Contrast checker → · Palette generator →