#17345D#17345D

#17345D is a dark, moderate blue. Relative luminance 0.034; OKLCH L 32.6% C 0.081 H 257.5°. Best body text is #FFFFFF at 12.46:1 contrast (WCAG AA passes).

Color values

HEX	#17345D
RGB	rgb(23, 52, 93)
HSL	hsl(215, 60%, 23%)
HSV	hsv(215, 75%, 36%)
CMYK	cmyk(75.3%, 44.1%, 0%, 63.5%)
CIE-LAB	lab(21.68, 4.81, -27.69)
CIE-LCH	lch(21.68, 28.10, 279.85°)
OKLab	oklab(32.62% -0.0176 -0.079)
OKLCH	oklch(32.62% 0.081 257.5)
XYZ	xyz(3.5564, 3.4281, 10.8281)
Luminance	0.0343 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17345D #5D4017

analogous

#17575D #17345D #1D175D

triadic

#17345D #5D1734 #345D17

tetradic

#17345D #5D1757 #5D4017 #175D1D

square

#17345D #5D1757 #5D4017 #175D1D

split-complementary

#17345D #5D1D17 #575D17

monochromatic

#060E19 #0B192C #17345D #234F8E #2F6BBF

Accessibility & contrast

On white

12.46

#17345D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#17345D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17345D

12.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17345D	#FFFFFF	#000000	##FFFFFF
##17345D	1.00	12.46	1.69	12.46
#FFFFFF	12.46	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#21375F

Deuteranopia (green-blind)

#15315C

Tritanopia (blue-blind)

#003E44

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #17345d;
/* rgb */ color: rgb(23, 52, 93);
/* oklch */ color: oklch(32.6% 0.081 257.5);

Tailwind

colors: {
  custom: {
    50: '#5e6b8b',
    500: '#17345d',
    950: '#000000',
  },
}

SCSS

$custom: #17345d;
$custom-light: #5e6b8b;
$custom-dark: #000000;

JSON

{
  "hex": "#17345d",
  "rgb": {
    "r": 23,
    "g": 52,
    "b": 93
  },
  "hsl": {
    "h": 215.143,
    "s": 60.345,
    "l": 22.745
  },
  "oklch": {
    "l": 0.32616,
    "c": 0.08095,
    "h": 257.5
  },
  "luminance": 0.03428
}

Semantic roles & 50–950 ramp

primary

#17345D

secondary

#946F3C

accent

#A244E3

background

#F5F6F8

surface

#E9EBF0

border

#C5C6CB

text

#05060C

muted

#797A7D

Preview Lab

Preview with #17345D

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

Preview Lab → · Contrast checker → · Palette generator →