#171E7A#171E7A

#171E7A is a dark, vivid blue. Relative luminance 0.025; OKLCH L 30.6% C 0.152 H 270.2°. Best body text is #FFFFFF at 13.97:1 contrast (WCAG AA passes).

Color values

HEX	#171E7A
RGB	rgb(23, 30, 122)
HSL	hsl(236, 68%, 28%)
HSV	hsv(236, 81%, 48%)
CMYK	cmyk(81.1%, 75.4%, 0%, 52.2%)
CIE-LAB	lab(17.99, 32.06, -52.50)
CIE-LCH	lch(17.99, 61.52, 301.41°)
OKLab	oklab(30.63% 0.0005 -0.1521)
OKLCH	oklch(30.63% 0.152 270.2)
XYZ	xyz(4.3293, 2.5154, 18.6659)
Luminance	0.0252 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171E7A #7A7317

analogous

#174F7A #171E7A #41177A

triadic

#171E7A #7A171E #1E7A17

tetradic

#171E7A #7A174F #7A7317 #177A41

square

#171E7A #7A174F #7A7317 #177A41

split-complementary

#171E7A #7A4117 #4F7A17

monochromatic

#05061A #0D1147 #171E7A #212BAD #333FD9

Accessibility & contrast

On white

13.97

#171E7A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.50

#171E7A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171E7A

13.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171E7A	#FFFFFF	#000000	##FFFFFF
##171E7A	1.00	13.97	1.50	13.97
#FFFFFF	13.97	1.00	21.00	1.00
#000000	1.50	21.00	1.00	21.00
##FFFFFF	13.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00317D

Deuteranopia (green-blind)

#002778

Tritanopia (blue-blind)

#00384A

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #171e7a;
/* rgb */ color: rgb(23, 30, 122);
/* oklch */ color: oklch(30.6% 0.152 270.2);

Tailwind

colors: {
  custom: {
    50: '#675aa1',
    500: '#171e7a',
    950: '#000000',
  },
}

SCSS

$custom: #171e7a;
$custom-light: #675aa1;
$custom-dark: #000000;

JSON

{
  "hex": "#171e7a",
  "rgb": {
    "r": 23,
    "g": 30,
    "b": 122
  },
  "hsl": {
    "h": 235.758,
    "s": 68.276,
    "l": 28.431
  },
  "oklch": {
    "l": 0.30634,
    "c": 0.15206,
    "h": 270.2
  },
  "luminance": 0.02516
}

Semantic roles & 50–950 ramp

primary

#171E7A

secondary

#AFA73E

accent

#DF3DEB

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07040F

muted

#7A797F

Preview Lab

Preview with #171E7A

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

Preview Lab → · Contrast checker → · Palette generator →