#17386B#17386B

#17386B is a dark, moderate blue. Relative luminance 0.041; OKLCH L 34.6% C 0.097 H 259.0°. Best body text is #FFFFFF at 11.57:1 contrast (WCAG AA passes).

Color values

HEX	#17386B
RGB	rgb(23, 56, 107)
HSL	hsl(216, 65%, 25%)
HSV	hsv(216, 79%, 42%)
CMYK	cmyk(78.5%, 47.7%, 0%, 58%)
CIE-LAB	lab(23.91, 7.80, -33.23)
CIE-LCH	lch(23.91, 34.14, 283.21°)
OKLab	oklab(34.64% -0.0185 -0.0952)
OKLCH	oklch(34.64% 0.097 259)
XYZ	xyz(4.4204, 4.0715, 14.4600)
Luminance	0.0407 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17386B #6B4A17

analogous

#17626B #17386B #20176B

triadic

#17386B #6B1738 #386B17

tetradic

#17386B #6B1762 #6B4A17 #176B20

square

#17386B #6B1762 #6B4A17 #176B20

split-complementary

#17386B #6B2017 #626B17

monochromatic

#050D19 #0C1E39 #17386B #22529D #2D6DD0

Accessibility & contrast

On white

11.57

#17386B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#17386B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17386B

11.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17386B	#FFFFFF	#000000	##FFFFFF
##17386B	1.00	11.57	1.81	11.57
#FFFFFF	11.57	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E3D6D

Deuteranopia (green-blind)

#0C356A

Tritanopia (blue-blind)

#00444C

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #17386b;
/* rgb */ color: rgb(23, 56, 107);
/* oklch */ color: oklch(34.6% 0.097 259.0);

Tailwind

colors: {
  custom: {
    50: '#616e96',
    500: '#17386b',
    950: '#000000',
  },
}

SCSS

$custom: #17386b;
$custom-light: #616e96;
$custom-dark: #000000;

JSON

{
  "hex": "#17386b",
  "rgb": {
    "r": 23,
    "g": 56,
    "b": 107
  },
  "hsl": {
    "h": 216.429,
    "s": 64.615,
    "l": 25.49
  },
  "oklch": {
    "l": 0.34639,
    "c": 0.09703,
    "h": 259
  },
  "luminance": 0.04072
}

Semantic roles & 50–950 ramp

primary

#17386B

secondary

#A17A3D

accent

#A640E8

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06070D

muted

#7A7A7E

Preview Lab

Preview with #17386B

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

Preview Lab → · Contrast checker → · Palette generator →