#17366B#17366B

#17366B is a dark, moderate blue. Relative luminance 0.039; OKLCH L 34.2% C 0.100 H 260.4°. Best body text is #FFFFFF at 11.82:1 contrast (WCAG AA passes).

Color values

HEX	#17366B
RGB	rgb(23, 54, 107)
HSL	hsl(218, 65%, 25%)
HSV	hsv(218, 79%, 42%)
CMYK	cmyk(78.5%, 49.5%, 0%, 58%)
CIE-LAB	lab(23.28, 9.22, -34.25)
CIE-LCH	lch(23.28, 35.47, 285.07°)
OKLab	oklab(34.15% -0.0167 -0.0983)
OKLCH	oklch(34.15% 0.1 260.4)
XYZ	xyz(4.3254, 3.8815, 14.4283)
Luminance	0.0388 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17366B #6B4C17

analogous

#17606B #17366B #22176B

triadic

#17366B #6B1736 #366B17

tetradic

#17366B #6B1760 #6B4C17 #176B22

square

#17366B #6B1760 #6B4C17 #176B22

split-complementary

#17366B #6B2217 #606B17

monochromatic

#050D19 #0C1D39 #17366B #224F9D #2D69D0

Accessibility & contrast

On white

11.82

#17366B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#17366B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17366B

11.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17366B	#FFFFFF	#000000	##FFFFFF
##17366B	1.00	11.82	1.78	11.82
#FFFFFF	11.82	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#193C6D

Deuteranopia (green-blind)

#05346A

Tritanopia (blue-blind)

#00434B

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #17366b;
/* rgb */ color: rgb(23, 54, 107);
/* oklch */ color: oklch(34.2% 0.100 260.4);

Tailwind

colors: {
  custom: {
    50: '#616c96',
    500: '#17366b',
    950: '#000000',
  },
}

SCSS

$custom: #17366b;
$custom-light: #616c96;
$custom-dark: #000000;

JSON

{
  "hex": "#17366b",
  "rgb": {
    "r": 23,
    "g": 54,
    "b": 107
  },
  "hsl": {
    "h": 217.857,
    "s": 64.615,
    "l": 25.49
  },
  "oklch": {
    "l": 0.34154,
    "c": 0.09966,
    "h": 260.4
  },
  "luminance": 0.03882
}

Semantic roles & 50–950 ramp

primary

#17366B

secondary

#A17C3D

accent

#AA40E8

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060D

muted

#7A7A7E

Preview Lab

Preview with #17366B

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

Preview Lab → · Contrast checker → · Palette generator →