#171A7F#171A7F

#171A7F is a dark, vivid blue. Relative luminance 0.025; OKLCH L 30.6% C 0.163 H 270.4°. Best body text is #FFFFFF at 14.09:1 contrast (WCAG AA passes).

Color values

HEX	#171A7F
RGB	rgb(23, 26, 127)
HSL	hsl(238, 69%, 29%)
HSV	hsv(238, 82%, 50%)
CMYK	cmyk(81.9%, 79.5%, 0%, 50.2%)
CIE-LAB	lab(17.70, 36.31, -56.16)
CIE-LCH	lch(17.70, 66.87, 302.88°)
OKLab	oklab(30.6% 0.0012 -0.1626)
OKLCH	oklch(30.6% 0.163 270.4)
XYZ	xyz(4.5522, 2.4527, 20.3081)
Luminance	0.0245 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171A7F #7F7C17

analogous

#174E7F #171A7F #48177F

triadic

#171A7F #7F171A #1A7F17

tetradic

#171A7F #7F174E #7F7C17 #177F48

square

#171A7F #7F174E #7F7C17 #177F48

split-complementary

#171A7F #7F4817 #4E7F17

monochromatic

#05051A #0E0F4B #171A7F #2025B3 #363BDB

Accessibility & contrast

On white

14.09

#171A7F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.49

#171A7F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171A7F

14.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171A7F	#FFFFFF	#000000	##FFFFFF
##171A7F	1.00	14.09	1.49	14.09
#FFFFFF	14.09	1.00	21.00	1.00
#000000	1.49	21.00	1.00	21.00
##FFFFFF	14.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003182

Deuteranopia (green-blind)

#00267D

Tritanopia (blue-blind)

#00394C

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #171a7f;
/* rgb */ color: rgb(23, 26, 127);
/* oklch */ color: oklch(30.6% 0.163 270.4);

Tailwind

colors: {
  custom: {
    50: '#6958a5',
    500: '#171a7f',
    950: '#000000',
  },
}

SCSS

$custom: #171a7f;
$custom-light: #6958a5;
$custom-dark: #000000;

JSON

{
  "hex": "#171a7f",
  "rgb": {
    "r": 23,
    "g": 26,
    "b": 127
  },
  "hsl": {
    "h": 238.269,
    "s": 69.333,
    "l": 29.412
  },
  "oklch": {
    "l": 0.30603,
    "c": 0.16265,
    "h": 270.4
  },
  "luminance": 0.02453
}

Semantic roles & 50–950 ramp

primary

#171A7F

secondary

#B4B03E

accent

#E73CEC

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#08030F

muted

#7A787F

Preview Lab

Preview with #171A7F

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

Preview Lab → · Contrast checker → · Palette generator →