#171A5E#171A5E

#171A5E is a dark, moderate blue. Relative luminance 0.017; OKLCH L 26.8% C 0.118 H 273.2°. Best body text is #FFFFFF at 15.60:1 contrast (WCAG AA passes).

Color values

HEX	#171A5E
RGB	rgb(23, 26, 94)
HSL	hsl(237, 61%, 23%)
HSV	hsv(237, 76%, 37%)
CMYK	cmyk(75.5%, 72.3%, 0%, 63.1%)
CIE-LAB	lab(13.99, 24.07, -40.80)
CIE-LCH	lch(13.99, 47.37, 300.54°)
OKLab	oklab(26.85% 0.0067 -0.1179)
OKLCH	oklch(26.85% 0.118 273.2)
XYZ	xyz(2.7424, 1.7288, 10.7767)
Luminance	0.0173 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171A5E #5E5B17

analogous

#173D5E #171A5E #37175E

triadic

#171A5E #5E171A #1A5E17

tetradic

#171A5E #5E173D #5E5B17 #175E37

square

#171A5E #5E173D #5E5B17 #175E37

split-complementary

#171A5E #5E3717 #3D5E17

monochromatic

#060719 #0B0C2D #171A5E #23288F #2F35C0

Accessibility & contrast

On white

15.60

#171A5E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.35

#171A5E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171A5E

15.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171A5E	#FFFFFF	#000000	##FFFFFF
##171A5E	1.00	15.60	1.35	15.60
#FFFFFF	15.60	1.00	21.00	1.00
#000000	1.35	21.00	1.00	21.00
##FFFFFF	15.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002760

Deuteranopia (green-blind)

#00205D

Tritanopia (blue-blind)

#002C39

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #171a5e;
/* rgb */ color: rgb(23, 26, 94);
/* oklch */ color: oklch(26.8% 0.118 273.2);

Tailwind

colors: {
  custom: {
    50: '#60568c',
    500: '#171a5e',
    950: '#000000',
  },
}

SCSS

$custom: #171a5e;
$custom-light: #60568c;
$custom-dark: #000000;

JSON

{
  "hex": "#171a5e",
  "rgb": {
    "r": 23,
    "g": 26,
    "b": 94
  },
  "hsl": {
    "h": 237.465,
    "s": 60.684,
    "l": 22.941
  },
  "oklch": {
    "l": 0.26849,
    "c": 0.1181,
    "h": 273.2
  },
  "luminance": 0.01729
}

Semantic roles & 50–950 ramp

primary

#171A5E

secondary

#95913C

accent

#DD44E4

background

#F6F5F8

surface

#EBE9F0

border

#C6C5CB

text

#05030C

muted

#7A787D

Preview Lab

Preview with #171A5E

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

Preview Lab → · Contrast checker → · Palette generator →