#171A5C#171A5C

#171A5C is a dark, moderate blue. Relative luminance 0.017; OKLCH L 26.6% C 0.115 H 273.4°. Best body text is #FFFFFF at 15.69:1 contrast (WCAG AA passes).

Color values

HEX	#171A5C
RGB	rgb(23, 26, 92)
HSL	hsl(237, 60%, 23%)
HSV	hsv(237, 75%, 36%)
CMYK	cmyk(75%, 71.7%, 0%, 63.9%)
CIE-LAB	lab(13.79, 23.29, -39.80)
CIE-LCH	lch(13.79, 46.11, 300.34°)
OKLab	oklab(26.64% 0.0069 -0.115)
OKLCH	oklch(26.64% 0.115 273.4)
XYZ	xyz(2.6539, 1.6934, 10.3101)
Luminance	0.0169 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171A5C #5C5917

analogous

#173D5C #171A5C #36175C

triadic

#171A5C #5C171A #1A5C17

tetradic

#171A5C #5C173D #5C5917 #175C36

square

#171A5C #5C173D #5C5917 #175C36

split-complementary

#171A5C #5C3617 #3D5C17

monochromatic

#060718 #0B0C2B #171A5C #23288D #2F36BE

Accessibility & contrast

On white

15.69

#171A5C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.34

#171A5C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171A5C

15.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171A5C	#FFFFFF	#000000	##FFFFFF
##171A5C	1.00	15.69	1.34	15.69
#FFFFFF	15.69	1.00	21.00	1.00
#000000	1.34	21.00	1.00	21.00
##FFFFFF	15.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00265E

Deuteranopia (green-blind)

#00205B

Tritanopia (blue-blind)

#002C38

Achromatopsia (no color)

#232323

Design tokens & code

CSS

--color: #171a5c;
/* rgb */ color: rgb(23, 26, 92);
/* oklch */ color: oklch(26.6% 0.115 273.4);

Tailwind

colors: {
  custom: {
    50: '#60568b',
    500: '#171a5c',
    950: '#000000',
  },
}

SCSS

$custom: #171a5c;
$custom-light: #60568b;
$custom-dark: #000000;

JSON

{
  "hex": "#171a5c",
  "rgb": {
    "r": 23,
    "g": 26,
    "b": 92
  },
  "hsl": {
    "h": 237.391,
    "s": 60,
    "l": 22.549
  },
  "oklch": {
    "l": 0.26636,
    "c": 0.1152,
    "h": 273.4
  },
  "luminance": 0.01694
}

Semantic roles & 50–950 ramp

primary

#171A5C

secondary

#938F3C

accent

#DC45E3

background

#F6F5F8

surface

#EBE9F0

border

#C6C5CB

text

#05030C

muted

#7A787D

Preview Lab

Preview with #171A5C

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

Preview Lab → · Contrast checker → · Palette generator →