#171A7D#171A7D

#171A7D is a dark, vivid blue. Relative luminance 0.024; OKLCH L 30.4% C 0.160 H 270.6°. Best body text is #FFFFFF at 14.19:1 contrast (WCAG AA passes).

Color values

HEX	#171A7D
RGB	rgb(23, 26, 125)
HSL	hsl(238, 69%, 29%)
HSV	hsv(238, 82%, 49%)
CMYK	cmyk(81.6%, 79.2%, 0%, 51%)
CIE-LAB	lab(17.47, 35.60, -55.28)
CIE-LCH	lch(17.47, 65.75, 302.78°)
OKLab	oklab(30.37% 0.0016 -0.1601)
OKLCH	oklch(30.37% 0.16 270.6)
XYZ	xyz(4.4232, 2.4011, 19.6284)
Luminance	0.0240 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171A7D #7D7A17

analogous

#174D7D #171A7D #47177D

triadic

#171A7D #7D171A #1A7D17

tetradic

#171A7D #7D174D #7D7A17 #177D47

square

#171A7D #7D174D #7D7A17 #177D47

split-complementary

#171A7D #7D4717 #4D7D17

monochromatic

#05051A #0D0F49 #171A7D #2125B1 #3539DA

Accessibility & contrast

On white

14.19

#171A7D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.48

#171A7D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171A7D

14.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171A7D	#FFFFFF	#000000	##FFFFFF
##171A7D	1.00	14.19	1.48	14.19
#FFFFFF	14.19	1.00	21.00	1.00
#000000	1.48	21.00	1.00	21.00
##FFFFFF	14.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003080

Deuteranopia (green-blind)

#00267B

Tritanopia (blue-blind)

#00384B

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #171a7d;
/* rgb */ color: rgb(23, 26, 125);
/* oklch */ color: oklch(30.4% 0.160 270.6);

Tailwind

colors: {
  custom: {
    50: '#6958a4',
    500: '#171a7d',
    950: '#000000',
  },
}

SCSS

$custom: #171a7d;
$custom-light: #6958a4;
$custom-dark: #000000;

JSON

{
  "hex": "#171a7d",
  "rgb": {
    "r": 23,
    "g": 26,
    "b": 125
  },
  "hsl": {
    "h": 238.235,
    "s": 68.919,
    "l": 29.02
  },
  "oklch": {
    "l": 0.30365,
    "c": 0.16011,
    "h": 270.6
  },
  "luminance": 0.02402
}

Semantic roles & 50–950 ramp

primary

#171A7D

secondary

#B2AE3E

accent

#E73CEC

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07030F

muted

#7A787F

Preview Lab

Preview with #171A7D

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

Preview Lab → · Contrast checker → · Palette generator →