#17397A#17397A

#17397A is a dark, moderate blue. Relative luminance 0.045; OKLCH L 36.1% C 0.118 H 261.7°. Best body text is #FFFFFF at 11.04:1 contrast (WCAG AA passes).

Color values

HEX	#17397A
RGB	rgb(23, 57, 122)
HSL	hsl(219, 68%, 28%)
HSV	hsv(219, 81%, 48%)
CMYK	cmyk(81.1%, 53.3%, 0%, 52.2%)
CIE-LAB	lab(25.30, 13.34, -40.55)
CIE-LCH	lch(25.30, 42.69, 288.21°)
OKLab	oklab(36.06% -0.017 -0.1167)
OKLCH	oklch(36.06% 0.118 261.7)
XYZ	xyz(5.3281, 4.5129, 18.9989)
Luminance	0.0451 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17397A #7A5817

analogous

#176A7A #17397A #26177A

triadic

#17397A #7A1739 #397A17

tetradic

#17397A #7A176A #7A5817 #177A26

square

#17397A #7A176A #7A5817 #177A26

split-complementary

#17397A #7A2617 #6A7A17

monochromatic

#050C1A #0D2147 #17397A #2151AD #336CD9

Accessibility & contrast

On white

11.04

#17397A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#17397A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17397A

11.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17397A	#FFFFFF	#000000	##FFFFFF
##17397A	1.00	11.04	1.90	11.04
#FFFFFF	11.04	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0E417C

Deuteranopia (green-blind)

#003879

Tritanopia (blue-blind)

#004953

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #17397a;
/* rgb */ color: rgb(23, 57, 122);
/* oklch */ color: oklch(36.1% 0.118 261.7);

Tailwind

colors: {
  custom: {
    50: '#656ea1',
    500: '#17397a',
    950: '#000000',
  },
}

SCSS

$custom: #17397a;
$custom-light: #656ea1;
$custom-dark: #000000;

JSON

{
  "hex": "#17397a",
  "rgb": {
    "r": 23,
    "g": 57,
    "b": 122
  },
  "hsl": {
    "h": 219.394,
    "s": 68.276,
    "l": 28.431
  },
  "oklch": {
    "l": 0.36055,
    "c": 0.11798,
    "h": 261.7
  },
  "luminance": 0.04514
}

Semantic roles & 50–950 ramp

primary

#17397A

secondary

#AF883E

accent

#AF3DEB

background

#F6F6FA

surface

#EBEBF3

border

#C6C6CD

text

#06070F

muted

#7A7A7F

Preview Lab

Preview with #17397A

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

Preview Lab → · Contrast checker → · Palette generator →