#171A6D#171A6D

#171A6D is a dark, vivid blue. Relative luminance 0.020; OKLCH L 28.5% C 0.139 H 271.8°. Best body text is #FFFFFF at 14.95:1 contrast (WCAG AA passes).

Color values

HEX	#171A6D
RGB	rgb(23, 26, 109)
HSL	hsl(238, 65%, 26%)
HSV	hsv(238, 79%, 43%)
CMYK	cmyk(78.9%, 76.1%, 0%, 57.3%)
CIE-LAB	lab(15.62, 29.78, -48.02)
CIE-LCH	lch(15.62, 56.51, 301.81°)
OKLab	oklab(28.51% 0.0045 -0.139)
OKLCH	oklch(28.51% 0.139 271.8)
XYZ	xyz(3.4821, 2.0247, 14.6723)
Luminance	0.0203 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171A6D #6D6A17

analogous

#17456D #171A6D #3F176D

triadic

#171A6D #6D171A #1A6D17

tetradic

#171A6D #6D1745 #6D6A17 #176D3F

square

#171A6D #6D1745 #6D6A17 #176D3F

split-complementary

#171A6D #6D3F17 #456D17

monochromatic

#050619 #0C0E3A #171A6D #2226A0 #2C32D2

Accessibility & contrast

On white

14.95

#171A6D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.41

#171A6D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171A6D

14.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171A6D	#FFFFFF	#000000	##FFFFFF
##171A6D	1.00	14.95	1.41	14.95
#FFFFFF	14.95	1.00	21.00	1.00
#000000	1.41	21.00	1.00	21.00
##FFFFFF	14.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002B6F

Deuteranopia (green-blind)

#00236C

Tritanopia (blue-blind)

#003241

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #171a6d;
/* rgb */ color: rgb(23, 26, 109);
/* oklch */ color: oklch(28.5% 0.139 271.8);

Tailwind

colors: {
  custom: {
    50: '#645798',
    500: '#171a6d',
    950: '#000000',
  },
}

SCSS

$custom: #171a6d;
$custom-light: #645798;
$custom-dark: #000000;

JSON

{
  "hex": "#171a6d",
  "rgb": {
    "r": 23,
    "g": 26,
    "b": 109
  },
  "hsl": {
    "h": 237.907,
    "s": 65.152,
    "l": 25.882
  },
  "oklch": {
    "l": 0.28505,
    "c": 0.13907,
    "h": 271.8
  },
  "luminance": 0.02025
}

Semantic roles & 50–950 ramp

primary

#171A6D

secondary

#A39F3D

accent

#E240E8

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06030E

muted

#7A787E

Preview Lab

Preview with #171A6D

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

Preview Lab → · Contrast checker → · Palette generator →