#171A7A#171A7A

#171A7A is a dark, vivid blue. Relative luminance 0.023; OKLCH L 30.0% C 0.156 H 270.8°. Best body text is #FFFFFF at 14.33:1 contrast (WCAG AA passes).

Color values

HEX	#171A7A
RGB	rgb(23, 26, 122)
HSL	hsl(238, 68%, 28%)
HSV	hsv(238, 81%, 48%)
CMYK	cmyk(81.1%, 78.7%, 0%, 52.2%)
CIE-LAB	lab(17.11, 34.53, -53.95)
CIE-LCH	lch(17.11, 64.06, 302.62°)
OKLab	oklab(30.01% 0.0021 -0.1562)
OKLCH	oklch(30.01% 0.156 270.8)
XYZ	xyz(4.2344, 2.3256, 18.6343)
Luminance	0.0233 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171A7A #7A7717

analogous

#174B7A #171A7A #45177A

triadic

#171A7A #7A171A #1A7A17

tetradic

#171A7A #7A174B #7A7717 #177A45

square

#171A7A #7A174B #7A7717 #177A45

split-complementary

#171A7A #7A4517 #4B7A17

monochromatic

#05051A #0D0F47 #171A7A #2125AD #3338D9

Accessibility & contrast

On white

14.33

#171A7A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.47

#171A7A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171A7A

14.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171A7A	#FFFFFF	#000000	##FFFFFF
##171A7A	1.00	14.33	1.47	14.33
#FFFFFF	14.33	1.00	21.00	1.00
#000000	1.47	21.00	1.00	21.00
##FFFFFF	14.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F7D

Deuteranopia (green-blind)

#002578

Tritanopia (blue-blind)

#003749

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #171a7a;
/* rgb */ color: rgb(23, 26, 122);
/* oklch */ color: oklch(30.0% 0.156 270.8);

Tailwind

colors: {
  custom: {
    50: '#6858a2',
    500: '#171a7a',
    950: '#000000',
  },
}

SCSS

$custom: #171a7a;
$custom-light: #6858a2;
$custom-dark: #000000;

JSON

{
  "hex": "#171a7a",
  "rgb": {
    "r": 23,
    "g": 26,
    "b": 122
  },
  "hsl": {
    "h": 238.182,
    "s": 68.276,
    "l": 28.431
  },
  "oklch": {
    "l": 0.3001,
    "c": 0.15625,
    "h": 270.8
  },
  "luminance": 0.02326
}

Semantic roles & 50–950 ramp

primary

#171A7A

secondary

#AFAC3E

accent

#E63DEB

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07030F

muted

#7A787F

Preview Lab

Preview with #171A7A

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

Preview Lab → · Contrast checker → · Palette generator →